[
  {
    "article_id": 244,
    "article_title": "Febrile Neutropenia",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Febrile neutropenia is stratified by risk to guide the intensity of empiric therapy. High-risk patients are those with anticipated neutropenia lasting more than 7 days, who are clinically unstable, or who have comorbidities. Ill-appearing patients, and those with poor marrow function such as congenital neutropenias or bone marrow failure syndromes, form a separate high-concern group. Low-risk, well-appearing patients with normal marrow function and reassuring vital signs represent the group for whom a less intensive pathway, including outpatient management, may ultimately be appropriate."
      },
      {
        "title": "Diagnosis",
        "content": "**Initial Assessment and Culture**\n\n1. Blood cultures, urine cultures, and cultures from any identified infection sites (abscess, [[353|cellulitis]], etc.) are obtained\n2. Cerebrospinal fluid is examined if CNS infection is suspected\n3. Antibiotics are not delayed while culture results are awaited"
      },
      {
        "title": "Management",
        "content": "**Antibiotic Initiation**\n\nBroad-spectrum intravenous antibiotics are started within 1 hour of patient arrival. For high-risk patients, empiric monotherapy is used with one of the following:\n\n- Piperacillin/tazobactam\n- Carbapenem\n- Ceftazidime\n- Cefepime\n\nFor ill-appearing patients or those with poor marrow function, an example initial regimen may include ceftriaxone, vancomycin, and metronidazole. If abdominal pain is present, anaerobic coverage is ensured.\n\n**Special Considerations**\n\n- For soft tissue infections, a semisynthetic penicillin and aminoglycoside or vancomycin may be added to cover for MRSA\n- With evidence of [[226|sepsis]], double coverage for gram-negative organisms is added in addition to vancomycin\n- For patients in shock, fungal coverage is considered\n\n**Ongoing Management**\n\n- Antibiotics are continued until fever resolves and neutrophil count rises\n- If fever persists for more than 3–5 days despite broad-spectrum antibiotics, empiric antifungal coverage is added\n- Low-risk, well-appearing patients with normal marrow function and reassuring vital signs may be managed as outpatients following an initial antibiotic dose, with close observation and follow-up\n\n**Transfusion Support**\n\nPatients receiving immunosuppressive therapy should receive irradiated blood products to prevent graft-versus-host disease and leukoreduced blood products to prevent transfusion-associated reactions and infections."
      }
    ]
  },
  {
    "article_id": 245,
    "article_title": "Gastroesophageal Reflux",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "**Initial Assessment**\n\nA history of symptom onset, frequency, and character is obtained. Whether regurgitation or vomiting is present is determined. Respiratory symptoms (cough, wheezing, hoarseness, apnea), failure to thrive, poor weight gain, and irritability are assessed. History of reflux in infancy and reactive airway disease is evaluated."
      },
      {
        "title": "Diagnosis",
        "content": "Regurgitation episodes need not be present for GERD diagnosis. Alternative causes of recurrent vomiting are excluded before surgery is considered."
      },
      {
        "title": "Management",
        "content": "**Nonpharmacologic Management (First-line)**\n\nFor infants and young children:\n- Feed volumes are reduced\n- Feeds are thickened\n- The infant is positioned after feeds\n\nFor older children:\n- Foods that exacerbate symptoms are avoided\n- Small, frequent meals are recommended\n\nParental education, guidance, and support are provided, particularly regarding choking after spitting up.\n\n**Pharmacologic Management**\n\nIf nonpharmacologic measures are insufficient:\n- Proton pump inhibitors are initiated (specific dosing not provided in source material)\n- Prokinetic drugs are considered if gastroparesis is associated\n\nProton pump inhibitor therapy is often adequate for symptom control.\n\n**Surgical Management**\n\nFundoplication is rarely indicated and reserved for medically refractory cases of GERD."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Patients with esophageal atresia and tracheoesophageal fistula require long-term follow-up due to increased risk of Barrett esophagus and esophageal cancer."
      }
    ]
  },
  {
    "article_id": 246,
    "article_title": "Growth Failure",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Because the underlying problem is almost always undernutrition, the history and exam are structured to sort the child into one (or more) of four functional categories: inadequate intake (feeding technique, access to food, formula preparation errors, oral-motor or behavioral feeding problems), excessive losses (vomiting, diarrhea, malabsorption), ineffective use of calories (metabolic disease), or increased requirement (chronic illness, congenital heart disease, chronic infection). Escalation to subspecialty or hospital-based evaluation is reserved for children with severe or rapidly progressive growth deceleration, suspected serious organic disease, or when outpatient nutritional intervention and follow-up have failed."
      },
      {
        "title": "Diagnosis",
        "content": "Careful, accurate anthropometry is performed at every visit: length/height, weight, and head circumference are weighed and measured with consistent technique, and plotted on the appropriate growth chart (WHO for children under 2 years). The defining patterns are specifically sought - weight-for-age below the 3rd-5th percentile, weight-for-length below the 5th percentile, or crossing of two or more major percentile lines - and correction is made for prematurity where relevant (weight to 24 months, head circumference to 18 months, length/height to 40 months). A thorough psychosocial assessment of the family is a required part of the work-up in every case, not only when a nonorganic cause is suspected, since organic and nonorganic contributors commonly overlap."
      },
      {
        "title": "Management",
        "content": "Re-measurement and re-plotting of growth parameters over time is the key tool for judging whether an intervention is working."
      }
    ]
  },
  {
    "article_id": 247,
    "article_title": "Grief Reaction",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "A dying child benefits from open, honest communication about death appropriate to developmental stage. The pediatrician's role is primarily supportive: listening, communicating clearly, and normalizing the expected course of grief by developmental stage (regression in preschoolers, somatic complaints in school-age children, high-risk behavior in adolescents), so families are not alarmed by expected reactions."
      },
      {
        "title": "Diagnosis",
        "content": "A follow-up visit is scheduled roughly 1 month after the death specifically to reassess the family's coping and to screen for red flags — symptoms persisting past the duration thresholds above, or emergence of high-risk behavior or peer withdrawal in an adolescent."
      },
      {
        "title": "Management",
        "content": "When death is anticipated, the family is given clear information about what to expect; this counseling supports effective bereavement. After a death, family members are encouraged to remain physically involved with the child's body — holding, rocking, or bathing — and siblings are allowed to participate in funeral planning (for example, choosing burial clothing).\n\nMedication is reserved for specific, severe symptoms — incapacitating anxiety, severe sleep disruption, or intense hyperarousal — rather than for grief itself, and always alongside psychotherapy; a psychopharmacologist is consulted when initiating this route. Families are explicitly told that medication will not cure the grief and that the underlying psychological work of mourning still has to happen."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Physicians who proactively explain what to expect during the grieving process are rated by families as the most competent, so anticipatory guidance is itself a therapeutic intervention."
      }
    ]
  },
  {
    "article_id": 248,
    "article_title": "Hearing Loss",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Hearing testing is ordered in any child with [[378|language delay]], learning problems, or suspected hearing loss, including after episodes of [[4|acute otitis media]] or [[258|otitis media with effusion]], since the associated conductive loss (typically 15–40 dB, average ~27 dB) can otherwise go unrecognized and compound developmental risk."
      },
      {
        "title": "Diagnosis",
        "content": "If auditory neuropathy is suspected, ABR is the appropriate screening/diagnostic modality rather than OAE alone. For a child old enough to cooperate (generally by age 4), pure tone audiometry with air and bone conduction is obtained to characterize the type and degree of loss."
      },
      {
        "title": "Management",
        "content": "In a newborn who fails hearing screening (OAE and/or ABR), prompt referral is made to a multidisciplinary center for audiology, otolaryngology, and speech pathology evaluation and treatment; a genetics consultation is added, since roughly half of sensorineural hearing loss has a genetic etiology and genetics can clarify diagnosis, prognosis, and associated risks. Families are directed to family-facing resources (e.g., the AAP Early Hearing Detection and Intervention program, babyhearing.org) for education and support during the diagnostic and intervention process."
      },
      {
        "title": "Prognosis and outcome",
        "content": "In counseling families, it is emphasized that intervention initiated within the birth-to-3-year window has the greatest capacity to prevent downstream speech, language, academic, and social-emotional consequences."
      }
    ]
  },
  {
    "article_id": 249,
    "article_title": "Hyperthyroidism",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Across etiologies, ophthalmopathy in children is less dramatic than in adults and more likely to improve with treatment. For the hyperthyroid phase of [[290|Hashimoto thyroiditis]] (hashitoxicosis), the phase is usually self-limited, so definitive antithyroid therapy is generally not needed, and these patients may eventually need thyroid hormone replacement once the gland burns out into [[171|hypothyroidism]]. Because hyperthyroidism is rare but potentially fatal if unrecognized, prompt diagnosis and treatment initiation are important."
      },
      {
        "title": "Diagnosis",
        "content": "Diagnosis is confirmed once suppressed TSH with elevated free T4/T3 is found."
      },
      {
        "title": "Management",
        "content": "First-line treatment for pediatric Graves disease is methimazole. Radioactive iodine (131I) or surgical thyroidectomy are reasonable options for initial treatment or for refractory disease. Once treatment is started, the patient's symptoms are followed along with T4 and TSH levels over time. Propranolol can be used for symptomatic relief (e.g., palpitations, tremor) during the hyperthyroid phase of hashitoxicosis."
      }
    ]
  },
  {
    "article_id": 250,
    "article_title": "Hypoxic-Ischemic Encephalopathy",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Because much of the ultimate brain injury occurs during the secondary, reperfusion phase rather than the initial insult, early recognition and supportive stabilization matter."
      },
      {
        "title": "Diagnosis",
        "content": "HIE is suspected in an infant meeting perinatal-event, examination, Apgar, and blood-gas-acidosis criteria. Staging severity (e.g., by the Levene system — consciousness, tone, presence/duration of seizures, ability to suck or sustain respiration) helps track clinical trajectory."
      },
      {
        "title": "Management",
        "content": "Therapeutic hypothermia has become the standard of care for moderate or severe neonatal HIE in the UK and many other countries and should be considered promptly once the diagnosis is suspected. Respiration is supported (these infants may be unable to sustain spontaneous respiration in severe disease), blood pressure/cardiac output is supported given the risk of myocardial dysfunction and hypotension, and the metabolic derangements that commonly accompany HIE — hypoglycemia, [[368|hypocalcemia]], and [[170|hyponatremia]] — are corrected. Seizures are monitored for and managed, and coexisting multi-organ dysfunction (renal failure, DIC, persistent pulmonary hypertension of the newborn) is evaluated for, since these commonly accompany severe encephalopathy."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Long-term follow-up is essential given the substantial risk of neurologic disability after moderate-to-severe HIE."
      }
    ]
  },
  {
    "article_id": 251,
    "article_title": "Intimate Partner Violence",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "For an adolescent, IPV is screened for at every health visit given how common and under-disclosed it is, and the warning signs above (avoidance of primary care, frequent ED visits, unexplained injuries, an overly attentive partner) are actively looked for."
      },
      {
        "title": "Diagnosis",
        "content": "Findings are documented thoroughly, including any injury without a consistent explanation or bruising at different stages of healing."
      },
      {
        "title": "Management",
        "content": "When a screening tool is positive, privacy and safety are ensured before proceeding further — IPV is never discussed in front of the partner, and removing children from the room is considered. The circumstances are clarified. A reflect–empathize–teach–offer approach is used: what was heard is reflected back (\"It looks like you've had some tough experiences with your partner\"); blame is removed through empathy (\"The violence is not your fault. You do not deserve to be hurt this way.\"); why help matters is explained (violence usually continues and worsens, it is a crime, and children can be hurt emotionally and physically by exposure); and intervention is offered, connecting the patient with community resources and options. State-specific mandatory reporting rules are noted — in some states, a child's exposure to IPV is itself considered maltreatment and must be reported to CPS.\n\nWhen wounds are treated, poor healing and signs of infection are monitored for as medically indicated. Care is coordinated around identified [[94|mental health]] needs (depression, anxiety, PTSD symptoms) with therapy modalities shown to help, and social work/behavioral health and community domestic-violence resources are involved as part of the ongoing management and follow-up plan."
      }
    ]
  },
  {
    "article_id": 252,
    "article_title": "Hepatitis B",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "For a needlestick or other percutaneous/permucosal exposure, the exposed person's vaccination/response status and the source's HBsAg status are established first, since this determines which prophylaxis pathway applies."
      },
      {
        "title": "Diagnosis",
        "content": "The infant is tested for HBsAg and anti-HBs after completion of the series to confirm protection and rule out infection. After any acute infection, HBsAg and HBV DNA are rechecked several months later to confirm resolution rather than progression to chronic infection."
      },
      {
        "title": "Management",
        "content": "For every newborn of an HBsAg-positive (or HBsAg-status-unknown) mother, hepatitis B vaccine is given within 12 hours of birth AND HBIG 0.5 mL IM at a different anatomic site, and the vaccine series is completed with doses 2 and 3 by 6 months of age. Breastfeeding initiation is not delayed to wait for immunization.\n\nFor an unimmunized exposed person with an HBsAg-positive source, HBIG 0.06 mL/kg (max 5 mL) IM is given and the vaccine series is started. For an unimmunized person with an HBsAg-negative or untested/unknown source, the vaccine series is started alone. For someone previously immunized and known to have responded, no treatment is needed. For someone previously immunized but a documented inadequate responder (anti-HBs <10 mIU/mL) with an HBsAg-positive source, HBIG is given immediately, and either HBIG is repeated in 1 month or reimmunization is begun."
      }
    ]
  },
  {
    "article_id": 253,
    "article_title": "Hypoplastic Left Heart Syndrome",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "HLHS is suspected in any neonate who develops sudden poor perfusion, cyanosis with a grayish hue, weakening pulses, or cardiogenic shock in the first days of life, particularly if antenatal ultrasound was not performed or was normal - the clinical deterioration typically coincides with ductal closure."
      },
      {
        "title": "Diagnosis",
        "content": "Confirmation is made with echocardiography, looking for a small, apex-forming-failing left ventricle, aortic/mitral valve hypoplasia or atresia, a diminutive ascending aorta, and a left-to-right bowing, pressure-restrictive atrial septum."
      },
      {
        "title": "Management",
        "content": "Once suspected or confirmed, initial stabilization centers on maintaining ductal patency and balancing the pulmonary and systemic circuits. Ventilation is titrated to keep PCO2 around 45-50 mmHg, and supplemental oxygen is avoided when systemic saturation is running 70-80%, since oxygen acts as a pulmonary vasodilator and can divert flow away from the systemic circulation, worsening perfusion. If the atrial septum is restrictive on echo, escalation to catheter-based intervention follows - Rashkind balloon atrial septostomy, septal balloon dilation, or rarely blade septostomy - to relieve pulmonary venous congestion. Definitive care requires transfer to a center capable of staged single-ventricle surgical palliation."
      }
    ]
  },
  {
    "article_id": 254,
    "article_title": "Inflammatory Bowel Disease",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "IBD is suspected in a child with [[354|chronic diarrhea]], abdominal pain, or growth faltering."
      },
      {
        "title": "Diagnosis",
        "content": "The evaluation begins with a thorough history (including family history), nutritional assessment, and exam, and first-line labs are sent: stool microscopy/culture, CBC, ESR, CRP, albumin, and fecal calprotectin is considered as a noninvasive screen for mucosal inflammation. A finding pattern suggestive of IBD should prompt referral for upper endoscopy and colonoscopy with biopsies, which remain the gold standard for diagnosis and for distinguishing Crohn disease from ulcerative colitis. If clinical suspicion stays high despite inconclusive endoscopy/histology, small bowel imaging (MRI small bowel protocol or ultrasound) and IBD serology are pursued."
      },
      {
        "title": "Management",
        "content": "Once IBD is confirmed, baseline assessment should include liver enzymes given that up to 30% of patients have hepatobiliary abnormalities, and growth parameters should be tracked closely since [[246|growth failure]] is a marker of disease control. Any patient started on thiopurines, methotrexate, 5-ASA agents, or biologics needs monitoring for drug-induced liver injury in addition to disease-activity monitoring. Because the goal of therapy is mucosal healing and durable remission with normal growth - not just symptom control - growth trajectory and nutritional status, not only stool frequency and pain, are reassessed at follow-up."
      }
    ]
  },
  {
    "article_id": 255,
    "article_title": "Lactose Intolerance",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In a child with recurrent bloating, cramps, flatulence, or diarrhea occurring 30 minutes to 2 hours after dairy intake, primary lactose intolerance is considered. If symptoms appear before age 2-3, primary lactose intolerance is not assumed - other causes, including galactosemia, are evaluated for instead."
      },
      {
        "title": "Diagnosis",
        "content": "A trial of dietary lactose elimination followed by gradual reintroduction is usually sufficient for diagnosis - formal testing is rarely needed. If confirmation is required, the hydrogen breath test (positive if breath hydrogen rises ≥20 ppm from baseline) or a pre-/post-lactose blood glucose test (a rise of <30 mg/dL [1.7 mmol/L] suggests lactose intolerance; ≥30 mg/dL is a normal response) is used."
      },
      {
        "title": "Management",
        "content": "Management centers on lactose reduction, not full dairy elimination: families are guided to keep dairy portions to about 12 g of lactose per sitting (roughly 1 cup of milk or yogurt), to spread smaller portions through the day with other foods, and to favor lower-lactose choices such as cheese, yogurt, buttermilk, paneer, or cottage cheese; lactase enzyme supplementation or lactose-reduced products are also considered. If symptoms arise during an acute diarrheal illness, lactose is temporarily limited to about 2-3 g/kg/day (approximately 30-50 mL/kg/day of whole cow's milk) and milk is mixed with cereal until the gut recovers. Whatever approach is chosen, the child's calcium and vitamin D intake is confirmed to remain adequate, with other dietary sources or supplements substituted if dairy is significantly restricted."
      }
    ]
  },
  {
    "article_id": 256,
    "article_title": "Osgood-Schlatter Disease",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "An adolescent runner/jumper presents with gradual-onset pain and swelling localized to the tibial tubercle, worsened by quadriceps loading and relieved by rest. An atypical presentation - acute onset with severe disability - points instead toward a traumatic avulsion rather than Osgood-Schlatter disease."
      },
      {
        "title": "Diagnosis",
        "content": "Osgood-Schlatter disease is diagnosed clinically; radiographs are not required but are reasonable if there is concern for an acute avulsion fracture, neoplasm, or if the presentation is atypical."
      },
      {
        "title": "Management",
        "content": "Treatment starts with conservative, symptomatic measures: activity modification (reducing but not necessarily fully stopping sport, guided by symptom severity), NSAIDs for pain, ice after activity, and a protective pad over the tibial tubercle for athletes returning to contact or kneeling activities. Quadriceps and hamstring stretching and physical therapy are added. Escalation to bracing/casting or surgical referral is reserved for the rare case with a suspected patellar tendon avulsion, rupture, or growth arrest with recurvatum deformity."
      },
      {
        "title": "Prognosis and outcome",
        "content": "The family is counselled explicitly that this is self-limited but slow - resolution commonly takes 12-18 months and symptoms typically settle around age 14-15 as the tibial tubercle apophysis closes - so the goal is symptom control and continued function rather than a quick fix."
      }
    ]
  },
  {
    "article_id": 257,
    "article_title": "Obesity",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Severity is assessed using BMI percentile for age and sex together with the presence of current morbidities — a child with BMI above the 95th percentile, or above the 85th percentile with an obesity-related comorbidity (especially with a family history of such comorbidities), is considered to have severe obesity and is evaluated accordingly."
      },
      {
        "title": "Diagnosis",
        "content": "The comorbidities associated with pediatric obesity are actively screened for: blood pressure is checked with an appropriately sized cuff, and evaluation is made for type 2 diabetes, dyslipidemia, nonalcoholic fatty liver disease, [[311|obstructive sleep apnea]], and orthopedic complaints as clinically indicated."
      },
      {
        "title": "Management",
        "content": "Counseling is delivered as a family intervention rather than targeting the child alone: the plan is framed around small, sustainable changes in diet and physical activity, it is emphasized that these changes take time to produce visible results, and the fact that the whole family benefits from adopting a healthier lifestyle together is normalized. Patience and honesty with the family are maintained, and room is created to discuss the emotional and psychological aspects of weight, diet, and exercise, since stigma and psychological morbidity are recognized complications in their own right, particularly in severe obesity. For children with severe obesity who do not respond to behavioral and family-based measures, especially those with significant comorbidities, referral is made for consideration of metabolic and bariatric surgery."
      }
    ]
  },
  {
    "article_id": 258,
    "article_title": "Otitis Media With Effusion",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "If effusion persists beyond 3 months, a hearing test is obtained; if it persists 3–6 months, or is bilateral, a hearing test is arranged and referral for ENT consultation is made, since untreated persistent effusion risks conductive [[248|hearing loss]] that can affect behavior and delay speech/language development. Prompt referral (rather than waiting through the usual observation period) is made for children who are otitis-prone or who carry additional risk for developmental impact — permanent hearing loss independent of OME, suspected or diagnosed speech/[[378|language delay]], [[117|autism spectrum disorder]] or other pervasive developmental disorders, Down syndrome or craniofacial disorders, blindness or uncorrectable [[343|visual impairment]], cleft palate, or developmental delay — since these children have less capacity to compensate for even mild, fluctuating hearing loss."
      },
      {
        "title": "Diagnosis",
        "content": "The diagnosis is confirmed with pneumatic otoscopy and tympanometry rather than treating empirically — decreased/immobile TM mobility (tympanometry type B) is sought without the acute inflammatory signs (otalgia, fever, red/bulging TM) that would instead point to AOM."
      },
      {
        "title": "Management",
        "content": "Once OME is confirmed, antibiotics are not prescribed. In an otherwise healthy child with no risk factors, the appropriate initial step is watchful observation, since most OME clears spontaneously within about 3 months. When surgery is indicated, tympanostomy tube insertion is the preferred procedure; adenoidectomy is reserved for children with a separate indication such as nasal obstruction or chronic adenoiditis, and medical management of the mucosal disease is continued alongside any surgical intervention until the condition resolves."
      }
    ]
  },
  {
    "article_id": 259,
    "article_title": "Patent Ductus Arteriosus",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Not all PDAs require closure, and the optimal approach among conservative, prophylactic, and symptomatic treatment strategies remains unsettled given a paucity of large randomized trials. Watchful expectancy is reasonable for a hemodynamically significant PDA in an infant who remains on the ventilator beyond the first week of life, since prophylactic and symptomatic pharmacologic approaches are not clearly superior in this setting. In full-term infants, the PDA is structurally different and indomethacin is usually ineffective — close monitoring is maintained and surgical ligation is considered at the earliest signs of significant [[285|congestive heart failure]]."
      },
      {
        "title": "Diagnosis",
        "content": "The ductus is reassessed after treatment for reopening or failure to close fully; if this occurs, a second course of indomethacin can be given, or surgical ligation considered if the infant remains symptomatic."
      },
      {
        "title": "Management",
        "content": "For asymptomatic or borderline cases, supportive/conservative management includes a thermoneutral environment, maintaining hematocrit above 35% (increases pulmonary vascular resistance), higher positive end-expiratory pressure with a shorter inspiratory time, and moderate fluid restriction (110–130 mL/kg/day). Loop diuretics are avoided, since they promote ductal patency via vasodilatory prostaglandin E2 release and add side effects; thiazide diuretics are used instead if a diuretic is needed.\n\nFor medical closure, indomethacin 0.2 mg/kg IV every 12 hours for 3 doses closes a clinically significant ductus in about two-thirds of cases. In extremely low-birth-weight infants (<1000 g) at very high risk for a symptomatic ductus, a prophylactic regimen of indomethacin 0.1 mg/kg every 24 hours for 3–5 days starting on day 1 of life may be used, which may reduce severe [[299|intraventricular hemorrhage]], though without demonstrated mortality or neurodevelopmental benefit. The most common side effect, transient oliguria, is managed with fluid restriction until urine output recovers; indomethacin is avoided if the infant is hyperkalemic or has a creatinine above 2 mg/dL. Ibuprofen and acetaminophen are alternative medical options used successfully in many cases. Catheter-based (percutaneous) PDA closure is increasingly favored for infants weighing more than 1 kg. Surgical ligation is reserved for infants who fail prior medical/catheter therapy and remain symptomatic, or when the ductus diameter exceeds 1.5–2 mm.\n\nEven without overt heart failure, ligation before age 1 year is recommended in full-term infants with a persistent PDA to prevent endocarditis and pulmonary hypertension."
      }
    ]
  },
  {
    "article_id": 260,
    "article_title": "Patellofemoral Pain Syndrome",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In an adolescent, especially a female athlete or runner, presenting with gradual-onset anterior/peripatellar knee pain worsened by stairs, squatting, running, or prolonged sitting with the knee flexed, and relieved by extension or walking, red flags that argue against PFPS are specifically looked for - significant effusion, true mechanical locking, or joint-line tenderness (which point toward a meniscal tear or other internal derangement warranting MRI rather than a PFPS diagnosis)."
      },
      {
        "title": "Diagnosis",
        "content": "A focused exam is performed: a medially displaced patella, tenderness of the patellar articular surface with the knee extended, crepitus, and a positive patellar stress/compression test are checked for. Radiographs or further imaging are reserved for atypical presentations - significant swelling, mechanical symptoms, trauma, or failure to improve with a reasonable trial of conservative therapy."
      },
      {
        "title": "Management",
        "content": "If the presentation is classic, treatment is empiric, without radiographs: ice, relative rest/activity modification, NSAIDs for pain, and referral to a physical therapy program targeting the quadriceps (with attention to vastus medialis strengthening), hamstrings, and hip abductors/external rotators. The patient is counselled on any recent training changes (volume, surface, footwear) that may have precipitated the episode, and these are addressed as part of the return-to-activity plan."
      }
    ]
  },
  {
    "article_id": 261,
    "article_title": "Pyelonephritis",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "If a child instead presents with a renal mass, weight loss, and minimal urinary symptoms, xanthogranulomatous pyelonephritis is considered and urology is involved, since this typically requires nephrectomy rather than antibiotics alone."
      },
      {
        "title": "Diagnosis",
        "content": "Vital signs (including temperature and blood pressure) and weight are assessed, the abdomen is examined for tenderness or a mass, the costovertebral angle is gently percussed for tenderness, and the external genitalia are examined for anatomic anomalies or irritation. A urinalysis and culture are obtained before any antibiotic is given — straight catheterization is used if the child cannot give a reliable clean-catch sample — and bacteriuria of at least 50,000 CFU/mL of a single pathogen is treated as significant.\n\nFollow-up imaging is sequenced to answer specific questions while minimizing radiation: a renal ultrasound is obtained (even during acute treatment) to look for hydronephrosis or structural anomalies; if reflux is a concern, a VCUG is obtained 2–4 weeks after treatment completes; if scarring is a concern, a DMSA scan is obtained 3–4 months after treatment (not sooner, to avoid mistaking reversible acute changes for permanent scarring)."
      },
      {
        "title": "Management",
        "content": "Therapy is chosen by clinical severity and risk factors. If the child tolerates oral intake and has no complicating risk factors, oral cephalexin or cefadroxil is used. If the child needs inpatient IV therapy, ceftriaxone 50 mg/kg/day (max 2 g/day) or cefotaxime 150 mg/kg/day divided every 8 hours (max 6 g/day) is started — ampicillin alone is not relied on given high rates of E. coli resistance. IV ciprofloxacin 18–30 mg/kg/day divided q8h (max 1.2 g/day) is added for Pseudomonas risk (prior Pseudomonas UTI, chronic catheter, neurogenic bladder), and ampicillin 100 mg/kg/day divided q6h (max 4 g/day) is added empirically if there is an Enterococcus risk factor (GU instrumentation, renal anomaly) or gram-positive rods on Gram stain. Treatment is given for 7 days total, extending to as long as 14 days if the child has not improved by day 3, with a switch to oral therapy once clinically improving."
      }
    ]
  },
  {
    "article_id": 262,
    "article_title": "Pyloric Stenosis",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In a 2-8-week-old infant with progressive, nonbilious, projectile vomiting who remains hungry after vomiting, pyloric stenosis is suspected."
      },
      {
        "title": "Diagnosis",
        "content": "Examination is performed for an epigastric \"olive\" mass and visible peristaltic waves, and a basic metabolic panel is sent looking for hypochloremic, hypokalemic metabolic alkalosis. The diagnosis is confirmed with abdominal ultrasound (pyloric channel length >18 mm, wall thickness >4 mm per ACR criteria); if the study is negative or equivocal but suspicion remains high, it is repeated in about a week rather than ruling out the diagnosis on one negative scan. The differential is kept in mind if the clinical or lab picture doesn't fit cleanly: acidosis rather than alkalosis should prompt evaluation for adrenal insufficiency or an inborn error of metabolism rather than assuming pyloric stenosis."
      },
      {
        "title": "Management",
        "content": "Once confirmed, this is not a surgical emergency - stabilization comes first. Dehydration is corrected with isotonic fluids, and hypokalemia and metabolic alkalosis are specifically corrected before proceeding to the operating room, since anesthesia in an alkalotic, hypokalemic infant carries risk (including apnea). Once fluids and electrolytes are normalized, pyloromyotomy (open or laparoscopic) is arranged. Advancement to full oral feeds occurs relatively quickly postoperatively per surgical team protocol."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Pyloromyotomy is curative with mortality under 0.5%."
      }
    ]
  },
  {
    "article_id": 263,
    "article_title": "Tension Headache",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In a child or adolescent presenting with recurrent bilateral, dull, pressing headache that worsens through the day, is not aggravated by routine activity, and lacks significant nausea/vomiting or more than one of photophobia/phonophobia, a careful history is taken for red flags that would point toward a secondary cause instead - progressive course, nausea/vomiting/ataxia/visual changes (concerning for a mass lesion), abnormal eye movements or focal weakness (concerning for hemorrhage), fever or meningeal signs (concerning for CNS infection), or a history of trauma. If the headache began abruptly and has been present daily since within 3 days of onset, new daily persistent headache (NDPH) is considered rather than standard TTH, since this distinct entity is defined specifically by that abrupt onset pattern."
      },
      {
        "title": "Diagnosis",
        "content": "The ICHD-3 frequency classification (infrequent episodic, frequent episodic, or chronic) is applied to characterize the headache and guide counseling and follow-up. Examination is performed specifically for pericranial muscle tenderness on palpation, which supports the diagnosis."
      },
      {
        "title": "Management",
        "content": "The frequency and type of any headache medications being used are specifically asked about, since frequent use of simple analgesics, NSAIDs, triptans, or opioids can itself cause medication-overuse headache and should be addressed as part of management. Headache frequency is documented systematically at follow-up, since crossing the threshold of more than 15 days per month for 3 months redefines the headache as chronic and may change the management approach."
      }
    ]
  },
  {
    "article_id": 264,
    "article_title": "Respiratory Failure",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Prompt recognition and early intervention in respiratory distress prevents progression to respiratory failure and cardiorespiratory arrest, so respiratory distress is treated as a time-sensitive warning sign rather than waiting for the formal failure criteria to appear. When acute respiratory failure follows a severe infectious illness in a patient with only mild-to-moderate underlying lung disease, intensive therapy is warranted because full recovery to baseline is achievable."
      },
      {
        "title": "Diagnosis",
        "content": "Precipitating comorbidities (e.g., atypical infection, allergic bronchopulmonary aspergillosis, [[396|pneumothorax]]) that can trigger acute decompensation in a patient with chronic lung disease are evaluated for."
      },
      {
        "title": "Management",
        "content": "Supplemental oxygen is provided to correct hypoxemia, but cautiously in patients with chronic CO2 retention (e.g., advanced cystic fibrosis), since aggressive oxygen supplementation can suppress hypoxic ventilatory drive. A rising PaCO2 may require ventilatory assistance; noninvasive support (CPAP or BiPAP) can rest fatigued respiratory muscles and is increasingly used, including in CF, before escalating to invasive ventilation.\n\nThe underlying cause is targeted: airway clearance and antibacterial therapy are intensified for infectious/suppurative causes, right-sided heart failure is treated vigorously when present, and identified precipitating comorbidities are treated. Endotracheal or bronchoscopic suction may be needed to clear inspissated secretions and can be repeated daily. High-dose steroids have anecdotal benefit in some severe acute presentations. Intensive intravenous antibiotics and postural drainage are continued for 1–2 weeks after the patient has returned to baseline status."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Recovery is often slow."
      }
    ]
  },
  {
    "article_id": 265,
    "article_title": "Small For Gestational Age",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "When an SGA infant is identified, investigation is made for the underlying category of cause — maternal, placental, or fetal — since this shapes counseling and follow-up; congenital (TORCH) infection and chromosomal/dysmorphic causes should be considered, particularly with symmetric growth restriction (weight, length, and head circumference all reduced together)."
      },
      {
        "title": "Diagnosis",
        "content": "All four anthropometric measures (weight, length, head circumference, ponderal index) are assessed rather than weight alone, since the pattern of restriction points toward different causes and prognoses. When any child is later evaluated for [[103|short stature]], the pregnancy and delivery history is always reviewed, since an evaluation for short stature is considered incomplete without this context."
      },
      {
        "title": "Management",
        "content": "[[97|Neonatal hypoglycemia]] is screened for and monitored, since SGA infants are at particular risk through a primary glycogen storage deficit distinct from the mechanisms seen in AGA or LGA infants. For the minority who do not catch up spontaneously, growth hormone therapy has been shown to be of benefit and should be considered."
      },
      {
        "title": "Prognosis and outcome",
        "content": "For long-term growth, families are reassured that the majority of SGA children — 85–90% — catch up to their genetic height potential by age 4 years."
      }
    ]
  },
  {
    "article_id": 266,
    "article_title": "Tetanus",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "The decision differs for clean, minor wounds versus all other wounds. In a newborn presenting with poor feeding and generalized rigidity/spasm, especially in a setting of inadequate maternal immunization or nonsterile umbilical cord care, neonatal tetanus is considered, with the umbilical stump managed as the presumed portal of entry."
      },
      {
        "title": "Diagnosis",
        "content": "For any wound presentation, the patient's tetanus vaccination history is asked about directly rather than assumed to be up to date, since this determines whether a tetanus-containing vaccine (DTaP, Tdap, or Td) and/or TIG are needed."
      },
      {
        "title": "Management",
        "content": "If the patient has had fewer than 3 prior tetanus toxoid doses (or the history is unknown), a tetanus-containing vaccine is given for any wound, and TIG is added for any wound that is not clean and minor. If the patient has had 3 or more prior doses, a booster vaccine (but not TIG) is needed only if it has been 10 or more years since the last dose for a clean, minor wound, or 5 or more years since the last dose for any other wound; TIG is not indicated in a fully immunized patient regardless of wound type.\n\nFor a patient with a confirmed or suspected active tetanus infection, TIG (part infiltrated around the wound, the remainder IM) plus metronidazole (preferred) or penicillin for 10–14 days are given, and the wound is thoroughly debrided of devitalized tissue to eliminate the anaerobic environment the organism requires. Muscle spasms and autonomic instability are managed supportively, including airway protection, given the risk from laryngospasm and generalized spasm."
      },
      {
        "title": "Prognosis and outcome",
        "content": "A prolonged course is anticipated — severe spasms typically persist for a week or more and resolve gradually over several weeks in survivors."
      }
    ]
  },
  {
    "article_id": 267,
    "article_title": "Thermal Burns",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Triage proceeds by severity: the resuscitation room is used for inhalational injury, altered mental status, chest pain/arrhythmia, or major associated trauma; critical-level treatment is given for facial burns with singed nasal hairs or hoarse voice, burns over 25% TBSA, or electrical burns with loss of consciousness or seizure; acute-level treatment is given for any full-thickness burn, partial-thickness burns over 15% TBSA, or burns involving the face or genitalia.\n\nReferral to a dedicated burn center is made for partial-thickness burns over 10% TBSA, full-thickness burns over 5% TBSA, any third-degree burn, electrical burns from high-tension wires or lightning, chemical burns, any inhalation injury regardless of TBSA, burns involving the face, hands, feet, perineum, genitals, or major joints, burns in a child with a preexisting condition that could complicate recovery, associated injuries such as fractures, an inadequate home or social environment, or any suspicion of abuse or neglect — including immersion burns with a sharp demarcation line inconsistent with a normal withdrawal reflex."
      },
      {
        "title": "Diagnosis",
        "content": "Burn depth and TBSA are estimated immediately, and assessment is made for [[190|inhalation injury]] (toxic gas exposure — carbon monoxide, hydrogen cyanide — and direct thermal airway injury) with any significant thermal burn, since this can dictate airway management ahead of the skin injury itself. For chemical burns or IV extravasation, the causative agent is identified. Burns are reassessed serially, since apparent depth can worsen with secondary infection, trauma, or hypoperfusion, and edema can initially mask a full-thickness injury as superficial."
      },
      {
        "title": "Management",
        "content": "Irrigation is performed promptly for chemical burns or IV extravasation; ophthalmology is involved emergently for any chemical or thermal burn to the eye.\n\nIV fluid resuscitation is calculated using the Parkland formula for significant burns: fluid volume (mL) = weight (kg) × %TBSA burned × 4, with half given over the first 8 hours post-injury and the remainder over the next 16 hours, in addition to maintenance fluids."
      }
    ]
  },
  {
    "article_id": 268,
    "article_title": "Tetralogy Of Fallot",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "A tet spell occurs in a known or suspected TOF patient (often an infant, but can occur in an older, unrepaired toddler), often triggered by crying, feeding, or a stressor that lowers systemic vascular resistance. A neonate presenting with cyanosis and suspected TOF (or another duct-dependent lesion) represents a distinct presentation requiring prompt attention to duct-dependent physiology rather than waiting for a spell to develop."
      },
      {
        "title": "Diagnosis",
        "content": "A tet spell is recognized by progressive agitation, increasing cyanosis, and increasing fussiness."
      },
      {
        "title": "Management",
        "content": "Action follows in this order: (1) the infant/child is placed in the knee-chest position immediately - this increases systemic vascular resistance and reduces right-to-left shunting across the VSD; (2) blow-by oxygen is given; (3) the child is calmed and comforted, and feeding is attempted if appropriate, since agitation worsens the spell. If cyanosis persists despite these first-line measures, propranolol 0.05 mg/kg IV is given to reduce heart rate and myocardial contractility and interrupt the dynamic infundibular obstruction driving the shunt. For a spell refractory to propranolol, escalation follows to IV phenylephrine (raises systemic vascular resistance pharmacologically) or ketamine, with intubation and sedation reserved as a last resort.\n\nFor a neonate with cyanosis in the first 2 weeks of life and suspected TOF (or another duct-dependent lesion), a prostaglandin E1 infusion is started promptly to maintain ductal patency and preserve pulmonary blood flow while definitive evaluation and surgical planning are arranged."
      }
    ]
  },
  {
    "article_id": 269,
    "article_title": "Tic Disorder",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "If a child on stimulant medication for ADHD develops new tics, this is understood to reflect unmasking of an underlying predisposition rather than a medication-caused tic disorder - a common point of parental concern worth addressing directly."
      },
      {
        "title": "Diagnosis",
        "content": "In a school-age child brought in for repetitive blinking, sniffing, throat clearing, or similar movements, a history is taken focused on onset, waxing/waning course, suppressibility, presence of a premonitory urge, and whether both motor and vocal tics are present and for how long - this determines whether the picture fits transient tic disorder (4 weeks to 1 year), chronic tic disorder (motor or vocal, >1 year), or Tourette syndrome (both motor and vocal, >1 year). A neurologic exam is performed, which should be normal aside from the tics; neuroimaging is not indicated for a typical presentation. Screening for common comorbidities is performed specifically at the same visit - ADHD and OCD are present in about half of Tourette syndrome patients, and anxiety, depression, and learning difficulties are also common - since these comorbidities, not tic severity itself, are usually the bigger driver of functional impairment and should be actively treated."
      },
      {
        "title": "Management",
        "content": "For most children with mild tics and no significant distress, reassurance and education alone are appropriate; over-medicalizing a transient, self-limited presentation is avoided. If tics are causing meaningful distress or impairment, an alpha-2 agonist (clonidine or guanfacine) is used as first-line pharmacotherapy, paired with behavioral therapy."
      }
    ]
  },
  {
    "article_id": 270,
    "article_title": "Type 1 Diabetes",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In a child presenting with polydipsia, polyuria, and weight loss (with or without overweight/obesity - obesity does not rule out T1D), DKA is assessed for at presentation given its associated morbidity and mortality, and ketosis alone does not distinguish T1D from type 2 diabetes - about a third of adolescents ultimately diagnosed with type 2 diabetes present with ketones and about 6% present in DKA."
      },
      {
        "title": "Diagnosis",
        "content": "The diagnosis is confirmed using ADA criteria: fasting glucose ≥126 mg/dL, 2-hour OGTT glucose ≥200 mg/dL, random glucose ≥200 mg/dL with classic symptoms, or HbA1c ≥6.5%. If the type of diabetes is unclear (e.g., an overweight or obese adolescent with new hyperglycemia), pancreatic autoantibodies (islet cell antigen 512, insulin, GAD, ZnT8) are sent to help confirm an autoimmune process, and monogenic diabetes is kept on the differential if there is an autosomal dominant family history, early onset, non-obese phenotype, or preserved C-peptide."
      },
      {
        "title": "Management",
        "content": "Once T1D is confirmed, insulin therapy is initiated - either a basal-bolus regimen (long-acting basal insulin such as glargine or detemir, plus short-acting boluses for meals and correction) or an insulin pump - alongside structured diabetes education covering nutrition, exercise, and self-monitoring of blood glucose. If the family is using a fixed-dose (non-analog basal) regimen, counseling covers eating at consistent times aligned with the insulin's peak action; if using a pump or long-acting basal analog, more flexible meal timing is possible. A team approach (medical, nutritional, and psychosocial support) is built given the lifelong self-management burden T1D places on the child and family."
      },
      {
        "title": "Prognosis and outcome",
        "content": "The long-term treatment target of HbA1c below 6.5% (48 mmol/mol) is set to reduce the risk of long-term vascular complications."
      }
    ]
  },
  {
    "article_id": 271,
    "article_title": "Vesicoureteral Reflux",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "VUR is suspected in a child presenting with a febrile urinary tract infection (especially a girl, given the roughly 30% prevalence of VUR in this group) or in an infant found to have antenatal hydronephrosis (5-15% will have VUR). For most children, particularly those with lower-grade reflux diagnosed at a younger age, a reasonable approach is expectant management, while surgical correction (open or endoscopic) is reserved for higher-grade reflux, breakthrough febrile infections despite prophylaxis, or reflux that persists without improvement over serial follow-up."
      },
      {
        "title": "Diagnosis",
        "content": "Confirmation and grading are made with a voiding cystourethrogram, using the International Reflux Study grading system (I-V) to communicate severity, and a radionuclide cystogram is considered for lower-radiation follow-up imaging once the initial diagnosis and anatomy are established."
      },
      {
        "title": "Management",
        "content": "Expectant management consists of antibiotic prophylaxis to reduce febrile UTI risk while spontaneous resolution is watched for, which occurs in about 80% of primary VUR cases as the ureterovesical junction matures. Families are counselled that the goal of management is preventing recurrent [[261|pyelonephritis]] and renal scarring, so prompt treatment of any febrile UTI in a child with known VUR is a priority regardless of which management strategy (prophylaxis vs. surgery) is chosen."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Scarring, not the reflux itself, is what drives the downstream risk of hypertension and [[284|chronic kidney disease]]."
      }
    ]
  },
  {
    "article_id": 272,
    "article_title": "Traumatic Brain Injury",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Any patient with altered memory, alertness, irritability, new seizures, or unexplained poor feeding/emesis after a plausible mechanism is treated as having possible TBI until proven otherwise. When evaluating any infant or young child with TBI, especially with a mechanism that seems inconsistent with the severity of injury, inflicted injury is considered, and child protective services and law enforcement are involved promptly if abuse is suspected — outcomes tend to be worse in this population, and early recognition protects both the current patient and any siblings."
      },
      {
        "title": "Diagnosis",
        "content": "The Cushing triad (bradycardia, hypertension, apnea) is not relied on to recognize rising intracranial pressure, since it appears late and is often incomplete; nonspecific changes in mental status are treated as a possible early warning sign instead. Follow-up imaging is obtained within 12 hours of presentation in a child with an identified traumatic intracranial injury, specifically to catch progression of contusion/hemorrhage and early radiographic signs of worsening cerebral edema (sulcal effacement at the vertex, smaller basal cisterns) before clinical deterioration occurs — by the time clinical signs of herniation or rising ICP appear, the window to interrupt progressive injury has narrowed considerably. An ophthalmologic exam for retinal hemorrhages and a skeletal survey for occult fractures are added to evaluate for inflicted injury."
      },
      {
        "title": "Management",
        "content": "The systemic factors that drive secondary injury are identified and corrected as a priority — hypoxia, hypotension, hypoglycemia, and hyperthermia — since these are directly actionable and worsen brain injury independent of the primary insult. For severe TBI requiring ICU-level care, tiered guideline-based management is followed: systemic derangements are corrected first, and escalation to second-tier therapies for refractory intracranial hypertension occurs only when first-tier measures are inadequate, with advanced monitoring used to guide these interventions when available. On longer-term follow-up, growth is monitored and screening is performed for hypopituitarism symptoms in children recovering from significant TBI."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Endocrine dysfunction can emerge post-injury and may improve substantially after the first year if identified and managed."
      }
    ]
  },
  {
    "article_id": 273,
    "article_title": "Acute Gastroenteritis",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In a child presenting with vomiting and/or three or more loose stools per day, the central clinical task is assessing the degree of dehydration, since this - not the specific pathogen - drives management decisions and correlates with illness severity. Features that should prompt reconsideration of a bacterial cause and possibly further workup are specifically looked for: hematochezia, high fever in an older child, or recent international travel to a developing country. Recent shellfish consumption is asked about if the presentation is unusual or severe, since this points to Vibrio, particularly in a patient with underlying liver disease, low gastric acidity, or [[122|immunodeficiency]] who would be more susceptible. Persistent high fever and lethargy are red flags for more severe or systemic illness rather than routine viral AGE and warrant closer evaluation."
      },
      {
        "title": "Diagnosis",
        "content": "For a well-appearing child with a typical, self-limited-appearing presentation (fever, crampy pain, watery diarrhea, hyperactive bowel sounds, no blood), no laboratory testing is routinely needed."
      },
      {
        "title": "Management",
        "content": "Supportive care with attention to rehydration is appropriate, and hydration status is reassessed at follow-up to confirm rehydration efforts are working. Families are counselled on the expected self-limited course of viral AGE, the importance of monitoring hydration status at home, and when to seek reassessment (worsening dehydration, persistent high fever, lethargy, or blood in the stool)."
      }
    ]
  },
  {
    "article_id": 274,
    "article_title": "Upper Respiratory Infection",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Watch specifically for the clinical pattern that suggests secondary bacterial sinusitis rather than uncomplicated URI: new fever, worsening nighttime cough, and increased sinus drainage emerging around day 9 of an apparent URI course warrants reassessment and consideration of bacterial sinusitis rather than reassurance that \"it's just a cold.\" URI is distinguished from its more dangerous mimics using history and oropharyngeal exam rather than reflexive imaging or labs: a barky cough with inspiratory stridor points to croup; toxic appearance with drooling and dysphagia points to [[331|epiglottitis]]; trismus with uvular deviation points to peritonsillar abscess; and neck stiffness with torticollis points to retropharyngeal abscess — both abscess presentations need urgent ENT involvement given their potential to progress to airway compromise or spread to contiguous neck structures.\n\nBefore elective surgery, current or recent URI symptoms are actively asked about: an active URI meaningfully raises perioperative risk of laryngospasm, bronchospasm, oxygen desaturation, and postextubation stridor, so this history should factor into the anesthesia team's decision about proceeding with or postponing a scheduled procedure."
      },
      {
        "title": "Diagnosis",
        "content": "Croup is a clinical diagnosis — routine imaging is skipped, and testing for a specific virus is done only if the result will change management, since testing can agitate the child and worsen obstruction."
      },
      {
        "title": "Management",
        "content": "When a child presents with a straightforward URI, management is supportive and antibiotics are not prescribed — this is the correct, guideline-concordant, and quality-tracked approach for isolated acute nasopharyngitis/laryngopharyngitis/URI. Epiglottitis is managed with airway control in the OR, not at bedside."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Families are educated that typical symptoms last 10–14 days, and that persistence beyond this window more often reflects a new sequential [[232|viral infection]] than ongoing treatment failure of the first one."
      }
    ]
  },
  {
    "article_id": 275,
    "article_title": "Achondroplasia",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "If surgery is needed for any reason, a team experienced in the specific perioperative considerations for skeletal dysplasia is involved, given the airway and cervicomedullary risks associated with achondroplasia."
      },
      {
        "title": "Diagnosis",
        "content": "Children with achondroplasia require structured, condition-specific health supervision rather than standard well-child monitoring alone, per American Academy of Pediatrics guidance developed and twice revised specifically for this population. Achondroplasia-specific growth curves are used rather than standard population curves to track height, weight, and head circumference, and weight-for-height is monitored carefully given how common and disabling obesity becomes in older children with this condition.\n\nProactive screening is performed for the serious but less common complications rather than waiting for symptoms: infants are assessed for risk of cervicomedullary-junction compression, since this is a recognized cause of increased infant mortality in achondroplasia; hydrocephalus is monitored for; and the thoracolumbar spine is evaluated for kyphosis. [[311|Obstructive sleep apnea]] and, less commonly, central sleep apnea are screened for, and hearing screening is arranged given the frequency of middle-ear dysfunction and associated [[248|hearing loss]] in this population."
      },
      {
        "title": "Management",
        "content": "Positioning guidance intervenes early since fixed, angular kyphosis is considered probably preventable if caught before it becomes structural (most infantile gibbus resolves spontaneously by walking age without intervention). Families are reassured that cognitive development and life expectancy are generally normal, while being clear and proactive about the orthopedic, respiratory, and neurologic surveillance this condition specifically requires."
      }
    ]
  },
  {
    "article_id": 276,
    "article_title": "Acute Pharyngitis",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Because over 90% of pediatric sore throat with fever is viral, the central clinical task is identifying the minority of patients who have GAS pharyngitis and would benefit from antibiotics, while avoiding unnecessary antibiotic use in the rest. The clinical picture is used to decide who is tested: sore throat plus tender/enlarged cervical nodes, tonsillar exudates, or fever above 38.3°C raises suspicion for GAS, while concurrent coryza, cough, conjunctivitis, hoarseness, oral ulcers, rash, or diarrhea argues for a viral cause and against testing or treating for GAS. Less common bacterial causes are considered based on context: N. gonorrhoeae in a sexually active adolescent, and C. diphtheriae in an unimmunized or under-immunized child with a membranous pharyngitis."
      },
      {
        "title": "Diagnosis",
        "content": "Suspected GAS is confirmed with culture (gold standard) or a NAAT before treatment; a rapid antigen test can be used but has lower sensitivity than culture, so a negative rapid test in a high-suspicion patient may warrant backup culture depending on local practice. If a patient presents weeks after a sore throat with new joint, cardiac, neurologic (chorea), or skin findings suggestive of ARF, throat culture is not relied upon (likely negative by then) — multiple antistreptococcal antibody titers (ASO, anti-DNase B, anti-hyaluronidase) are sent instead to maximize the chance of confirming antecedent GAS infection, since a third of ARF patients will not even recall having had a sore throat."
      },
      {
        "title": "Management",
        "content": "Confirmed GAS pharyngitis is treated with penicillin or amoxicillin (azithromycin, erythromycin, or clindamycin as second-line alternatives), both to shorten the clinical course and to prevent [[194|acute rheumatic fever]], which remains the reason GAS diagnosis matters even though it is now rare in the US. N. gonorrhoeae is treated with ceftriaxone, covering for Chlamydia co-infection, and C. diphtheriae is treated with antibiotics plus diphtheria antitoxin, with notification of public health."
      }
    ]
  },
  {
    "article_id": 277,
    "article_title": "Acute Poisoning",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In any child under 5 with an unexplained or repeated ingestion, or any presentation raising suspicion for an intentional or non-accidental cause, appropriate psychosocial and safety evaluation is initiated alongside the medical workup."
      },
      {
        "title": "Diagnosis",
        "content": "An ECG is obtained for any cardiotoxic or unknown ingestion, watching specifically for a widened QRS complex that would suggest tricyclic antidepressant toxicity and change management. A routine urine drug screen is not relied upon to rule out poisoning - it misses many important toxins (cyanide, clonidine, organophosphates, beta-blockers, calcium channel blockers, iron), so a negative screen should never be used to dismiss clinical suspicion. A specific blood level is sent when a particular agent is suspected and a level is clinically actionable (e.g., acetaminophen, given its silent Phase 1 presentation and the importance of early identification before hepatotoxicity in Phase 2)."
      },
      {
        "title": "Management",
        "content": "For any child presenting with known or suspected poisoning, management begins with the ABCDs: the Airway is secured, effective Breathing is ensured, Circulation is supported, and Disability is assessed (level of consciousness via Glasgow Coma Scale or AVPU, and pupillary size/reactivity), while the need for empiric antidote administration and Decontamination is considered. A bedside glucose is obtained immediately in any child with altered mental status. Since most substances lack a specific antidote, resources are focused on aggressive supportive care while the poison control hotline (1-800-222-1222) is called for substance-specific guidance on decontamination, antidote use if one exists, and disposition."
      }
    ]
  },
  {
    "article_id": 278,
    "article_title": "Bacterial Infection",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "When evaluating a febrile neonate or young infant, the SBI risk figures are kept in mind to calibrate the workup: overall SBI risk is 7–13%, driven mostly by UTI (5–13%), with [[350|bacteremia]] (1–2%) and meningitis (0.2–0.5%) less common but higher stakes. Clinical appearance and age serve as primary risk stratifiers — ill-appearing infants and younger infants carry substantially higher SBI risk — and the IBI/UTI distinction matters practically: a well-characterized UTI can often be managed with oral antibiotics, while bacteremia or meningitis requires parenteral therapy and closer inpatient monitoring."
      },
      {
        "title": "Diagnosis",
        "content": "In a child with recurrent bacterial infections — 2 or more episodes of sepsis, meningitis, pneumonia, internal abscess, or bone/joint infection — an underlying [[122|immunodeficiency]], including HIV, is evaluated for if not already known, since this pattern is a defining feature of significant immune compromise."
      },
      {
        "title": "Management",
        "content": "Because E. coli is the leading cause of SBI at every site (UTI, bacteremia, and meningitis) and GBS is the second most common cause of bacteremia/meningitis, empiric antibiotic choices in this age group should reliably cover both organisms until culture results return. If [[372|HIV infection]] is confirmed, PCP prophylaxis (TMP-SMX), pneumococcal conjugate vaccination, and effective antiretroviral therapy are ensured, since these measures have substantially reduced recurrent bacterial infection frequency compared with historical rates of around 15%. For simple, uncomplicated cutaneous bacterial infections where adherence to a multi-day oral regimen is a concern, a shorter 3-day TMP-SMX course or a single intramuscular dose of benzathine benzylpenicillin is considered as a practical alternative."
      }
    ]
  },
  {
    "article_id": 279,
    "article_title": "Bicuspid Aortic Valve",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "BAV is identified either incidentally on exam (systolic ejection click, suprasternal thrill, or a soft systolic murmur) or on echocardiography performed for another reason, such as coarctation screening."
      },
      {
        "title": "Diagnosis",
        "content": "It is confirmed and characterized with 2D echocardiography, since this is the definitive diagnostic tool. At each surveillance echocardiogram, valve gradient/function is assessed along with the aortic root and ascending aorta, since BAV carries an intrinsic aortopathy (sometimes cystic medial necrosis) independent of valve function, predisposing to progressive dilation and, rarely, dissection."
      },
      {
        "title": "Management",
        "content": "A plan for lifelong periodic re-evaluation is established even in an asymptomatic child or adolescent. Antibiotic endocarditis prophylaxis is not routinely prescribed for an isolated BAV, even with associated simple coarctation - current guidance does not support it. If BAV is found in a child, first-degree relatives are screened given the recognized familial clustering of BAV and other left-sided obstructive lesions, and the family is counselled that the condition, while common and often benign for years, requires committed long-term follow-up rather than a one-time reassurance."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Valvar calcification/sclerosis can begin as early as the teenage years and roughly three-quarters of BAV patients eventually develop clinically significant stenosis or regurgitation over their lifetime."
      }
    ]
  },
  {
    "article_id": 280,
    "article_title": "Breastfeeding Jaundice",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In a jaundiced neonate in the first week of life, feeding adequacy and hydration status are assessed first: weight loss, decreased stool/void frequency, and a history of poor milk supply or poor latch point toward breastfeeding jaundice. If jaundice instead becomes evident after the first week in an infant who is thriving, feeding well, and gaining weight appropriately, breast milk jaundice syndrome is considered - a generally benign, self-limited condition that can nonetheless persist for weeks."
      },
      {
        "title": "Diagnosis",
        "content": "Total and conjugated bilirubin are sent after 3 weeks of age to exclude other causes; a conjugated fraction over 1.5 mg/dL or more than 20% of total bilirubin, jaundice persisting beyond 2 weeks with acholic stools or dark urine, should prompt urgent evaluation for biliary atresia rather than being attributed to breast milk jaundice."
      },
      {
        "title": "Management",
        "content": "This is managed by intensifying breastfeeding support - more frequent nursing, breast pumping to augment supply and stimulate production, and lactation consultation - with supplementation by expressed breast milk, donor milk, or formula if intake remains inadequate or weight loss is excessive, taking care not to undermine the mother's milk supply in the process. The same AAP phototherapy/exchange transfusion thresholds used for formula-fed infants apply; breastfeeding can typically continue during treatment. Any infant discharged before 72 hours of age is reassessed within 48 hours specifically for adequacy of breastfeeding and progression of jaundice."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Early detection of breastfeeding jaundice - not sun exposure, which is not an effective treatment - is what prevents progression to dangerous bilirubin levels and kernicterus."
      }
    ]
  },
  {
    "article_id": 281,
    "article_title": "Cardiac Arrhythmia",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "When an arrhythmia is suspected in a child - whether from a caregiver report of an irregular heartbeat, palpitations, [[334|syncope]], or incidental findings on exam - management is arrhythmia-specific, so a systematic diagnostic approach is used before any empiric treatment is started. Unremarkable, unifocal PVCs that resolve with exercise in an otherwise well child with a normal exam are reserved for reassurance without further workup, while full evaluation is pursued for any child with syncope, a family history of sudden death, or known/suspected structural heart disease."
      },
      {
        "title": "Diagnosis",
        "content": "A 12-lead ECG is obtained before any empiric treatment is started, since subtle findings can be missed on a rhythm strip alone. The rhythm is worked through systematically: is it fast or slow for the child's age (using age-specific thresholds), is it regular or irregular, and what is the relationship between P waves and QRS complexes. If the presenting complaint is paroxysmal and the resting ECG is normal, ambulatory (Holter) monitoring for 24-48 hours or an event recorder is arranged to try to capture the episode. A focused history is taken addressing onset/offset pattern (abrupt suggests true arrhythmia, gradual suggests normal variation), associated symptoms (syncope, dizziness, chest pain, dyspnea), specific triggers (exercise, startle, swimming - raising concern for an inherited channelopathy), and family history of sudden death, pacemaker, deafness, or seizures."
      },
      {
        "title": "Management",
        "content": "In an acutely unstable child with any arrhythmia, reversible causes are systematically searched for and corrected (the H's and T's - hypovolemia, hypoxia, acidosis, hypoglycemia, potassium derangement, hypothermia, tension [[396|pneumothorax]], tamponade, toxins, or thrombosis) before or alongside arrhythmia-specific treatment. An irregularly irregular narrow-complex tachycardia is treated as atrial fibrillation/flutter with variable conduction: synchronized cardioversion (0.5-1 J/kg) or rate control with a beta-blocker or calcium channel blocker is used (never both together, and calcium channel blockers are avoided under age 2), but cardioversion is withheld if the arrhythmia has lasted 48 hours or longer or its duration is unknown, given stroke risk from a possible atrial thrombus."
      }
    ]
  },
  {
    "article_id": 282,
    "article_title": "Cannabis Use Disorder",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Chest pain in a cannabis user is evaluated on its own merits — acute coronary syndrome, [[348|asthma exacerbation]], and [[396|pneumothorax]]/pneumomediastinum are ruled out — rather than attributing it reflexively to the cannabis itself. Cannabis withdrawal syndrome presents with irritability, anger, sleep disturbance, decreased appetite, restlessness, depressed mood, plus a physical symptom, emerging about a week after stopping heavy near-daily use."
      },
      {
        "title": "Diagnosis",
        "content": "For suspected cannabinoid hyperemesis syndrome, other causes of recurrent vomiting are excluded first."
      },
      {
        "title": "Management",
        "content": "Acute symptoms of cannabis intoxication or panic reaction are managed with a calm environment, decreased stimulation, and reassurance; benzodiazepines are sometimes indicated for severe anxiety or agitation.\n\nTreatment of cannabinoid hyperemesis syndrome consists of cessation of cannabis use (the single most effective intervention), antiemetics (ondansetron), and topical capsaicin; the patient is counselled explicitly that abstinence, not just symptomatic treatment, is required to resolve the syndrome.\n\nFor an adolescent with a positive CRAFFT screen for marijuana, a brief counseling session is provided; escalation to more intensive treatment — motivational interviewing and cognitive behavioral therapy have shown effectiveness in this age group — is based on the duration and frequency of use. For cannabis withdrawal syndrome, behavioral therapy is the mainstay, with buspirone and gabapentin used adjunctively in some cases. Given how common cannabis use is among adolescents, routine visits are used as an opportunity to provide direct education on the short- and long-term health hazards of use, including the cognitive, respiratory, psychiatric, and educational-attainment risks described above."
      }
    ]
  },
  {
    "article_id": 283,
    "article_title": "Cephalohematoma",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Cephalohematoma is distinguished promptly from subgaleal hemorrhage at the bedside, since the latter is a hemodynamic emergency: subgaleal hemorrhage crosses suture lines, can extend to the orbits and neck, may develop 1–6 hours after a vacuum-assisted delivery, and can sequester a large fraction of the infant's blood volume — these infants need close monitoring for hypovolemia and coagulopathy rather than the simple observation appropriate for an uncomplicated cephalohematoma. If signs of infection (fever, worsening local erythema/warmth, systemic illness) develop, [[175|osteomyelitis]] of the skull is considered."
      },
      {
        "title": "Diagnosis",
        "content": "Skull imaging (x-ray or CT) is obtained only if there is clinical suspicion of an underlying fracture (e.g., a particularly traumatic or instrumented delivery) or if abnormal neurologic findings are present — imaging is not routine for an uncomplicated cephalohematoma. Hematocrit/hemoglobin is checked and bilirubin monitored serially, since a large cephalohematoma can represent a clinically significant blood loss and its resorption can precipitate or exacerbate neonatal jaundice. If an occipital cephalohematoma is being considered, it is confirmed not to be an encephalocele (which transilluminates, is pulsatile, and overlies a bony defect) with ultrasound or CT before a benign course is assumed."
      },
      {
        "title": "Management",
        "content": "Parents are reassured proactively that the firm rim and any residual calcified bump are part of the normal resolution process and are a frequent source of unnecessary parental concern. Resulting [[130|hyperbilirubinemia]] is treated with phototherapy as indicated using standard criteria. Aspiration of the hematoma is avoided, as it is rarely necessary and carries infection risk; empiric coverage for E. coli and S. aureus is given while further evaluation is pursued if infection is suspected."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Most cephalohematomas require no specific treatment and resolve spontaneously over 2–6 weeks with observation alone."
      }
    ]
  },
  {
    "article_id": 284,
    "article_title": "Chronic Kidney Disease",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "If a child presents acutely with previously undiagnosed CKD, restoring electrolyte and acid-base homeostasis is prioritized, any identifiable underlying cause is treated, and emergent renal replacement therapy is initiated if life-threatening derangements are present."
      },
      {
        "title": "Diagnosis",
        "content": "The diagnosis is confirmed by documenting either kidney damage markers or a GFR below 60 mL/min/1.73 m² persisting for at least 3 months — a single abnormal lab value is not diagnostic of CKD and should prompt repeat testing rather than immediate labeling. The disease is staged by GFR (and, per KDIGO, by albuminuria as well) to guide the intensity of monitoring and anticipate stage-specific complications, since certain manifestations of CKD emerge at predictable GFR thresholds regardless of the underlying cause.\n\nEtiology is investigated systematically: in a neonate or young infant, a careful family history is taken (diabetes, urinary tract disease, polycystic kidney disease, congenital [[310|nephrotic syndrome]]) since these point toward a chronic rather than acute process, and structural causes (obstructive uropathy, dysplastic/hypoplastic kidneys, polycystic kidney disease) are evaluated for with appropriate imaging. Children with CKD — even mild-to-moderate stages — are screened for cognitive, academic, and attention difficulties rather than assuming normal neurodevelopment, and hearing is checked before language deficits are attributed to the kidney disease itself."
      },
      {
        "title": "Management",
        "content": "In an HSCT survivor, proteinuria is monitored proactively (including at day +100 post-transplant) given its strong association with nonrelapse mortality, and the drug list is reviewed for nephrotoxic exposures (calcineurin inhibitors, certain antimicrobials) that may be modifiable. Renal osteodystrophy and growth impairment are monitored for and managed, and medication choices (particularly corticosteroid exposure) are weighed against their contribution to these complications."
      }
    ]
  },
  {
    "article_id": 285,
    "article_title": "Congestive Heart Failure",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "CHF is first distinguished from its common mimics using history, exam, and chest radiograph. The age of onset serves as a clue: CHF appearing well before 6–8 weeks of life, or earlier than expected for a presumed shunt lesion, should prompt evaluation for coarctation of the aorta or congenital AV valve regurgitation. In an infant with a persistent heart rate above 180/min, the tachycardia is treated proactively rather than waiting for overt failure, since risk of CHF rises sharply with duration — about 20% by 36 hours and nearly 50% by 48 hours of sustained tachycardia."
      },
      {
        "title": "Diagnosis",
        "content": "The absence of cardiomegaly on radiograph argues against CHF and toward asthma, [[3|bronchiolitis]], or pneumonia, while hepatomegaly, gallop rhythm, and cardiomegaly support a cardiac cause. Echocardiography is used early to identify the specific underlying lesion or process — structural CHD, ventricular dysfunction, pulmonary hypertension, or valve disease — since this determines definitive treatment."
      },
      {
        "title": "Management",
        "content": "For chronic outpatient management, the regimen is built around digoxin, a diuretic (furosemide or spironolactone), an ACE inhibitor (enalapril or captopril) or ARB (losartan), and a selective beta-blocker (carvedilol or metoprolol) as tolerated. For acute decompensated CHF, admission to a pediatric ICU combines general supportive measures (temperature control, oxygen, correcting acidosis, sepsis management, metabolic correction) with targeted IV therapy — diuretics (furosemide, bumetanide), inotropes (dobutamine, dopamine), phosphodiesterase inhibitors (milrinone, amrinone), and vasodilators (nitroprusside, inhaled nitric oxide) as indicated by the hemodynamic picture. If the patient fails to respond to conventional therapy (diuretics, digoxin, ACE inhibitors), escalation to mechanical circulatory support (ECMO or LVAD) follows promptly rather than persisting with medical therapy alone. Whenever CHF is due to a structural, correctable or palliable lesion, surgical or catheter-based intervention is pursued rather than accepting prolonged medical management as a long-term substitute."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Surgical correction/palliation offers the best chance of the excellent prognosis and catch-up growth typically seen with treated pediatric CHF."
      }
    ]
  },
  {
    "article_id": 286,
    "article_title": "Conduct Disorder",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "CD is distinguished from ODD by looking specifically for deliberate aggression, deceit, and serious rule-breaking with little remorse, rather than only oppositional defiance and irritability. The ADHD/CD/bipolar disorder comparison sharpens the differential when the picture is ambiguous: constant defiance with planned revenge points to CD, constant impulsivity/distractibility/motor restlessness points to ADHD, and episodic intense rages with morbid or grandiose thought content (or hallucinations) point to bipolar disorder."
      },
      {
        "title": "Diagnosis",
        "content": "When evaluating a child or adolescent for possible conduct disorder, the four DSM-5 behavior categories are systematically screened - aggression to people/animals, property destruction, deceitfulness/theft, and serious rule violations - with confirmation of at least 3 criteria within the past 12 months and at least 1 in the past 6 months, plus meaningful functional impairment. Comorbidities that can drive presentation and require their own treatment are actively screened for - ADHD, mood disorders (including depression, given increased suicide risk in CD), learning disabilities, and, in more violent presentations, psychomotor seizures or psychotic symptoms."
      },
      {
        "title": "Management",
        "content": "Parents are engaged directly in both diagnosis and treatment planning, since children with CD do not typically seek help themselves, and any inconsistent or overly harsh disciplinary patterns in the home are addressed as part of the overall management plan, alongside referral for behavioral/family therapy and treatment of identified comorbidities."
      },
      {
        "title": "Prognosis and outcome",
        "content": "The age of onset is noted: onset before age 10 (childhood-onset type) carries a substantially worse prognosis and should prompt more assertive intervention, while adolescent-onset (peer-influenced) type is generally more time-limited."
      }
    ]
  },
  {
    "article_id": 287,
    "article_title": "Cow Milk Protein Sensitivity",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In an infant with blood-streaked or mucoid stools, persistent regurgitation/vomiting, unexplained fussiness, or [[288|eczema]]/wheeze alongside GI symptoms, cow milk protein sensitivity is considered. Acute, IgE-mediated presentations (vomiting, urticaria, facial swelling, shock-like state within minutes of ingestion) are managed as an allergic/anaphylactic emergency."
      },
      {
        "title": "Diagnosis",
        "content": "Occult-blood-positive stool, eczema, or positive allergy testing are not required before the trial is started - many infants have only spitting up or fussiness as their sole symptom, and the diagnosis rests on clinical response, not a lab test. If symptoms resolve on elimination, the diagnosis is confirmed with reintroduction/rechallenge under medical supervision, watching for relapse."
      },
      {
        "title": "Management",
        "content": "A time-limited elimination trial is started: maternal avoidance of cow milk protein if the infant is breastfed, or a switch to an extensively hydrolyzed formula (not soy, given the high rate of soy cross-reactivity, particularly with GI-predominant presentations) if formula-fed. The trial is run for at least 1 month in infants with mild symptoms to allow mucosal healing before response is judged; a shorter 2-week trial can be used when the picture more closely overlaps with GERD.\n\nWith the acute, IgE-mediated presentation, the family is equipped with an epinephrine autoinjector and a medical alert bracelet going forward, along with strict future avoidance."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Families are counselled on the generally favorable prognosis - most children with GI-predominant sensitivity are tolerant by age 2-3, and most with IgE-mediated hypersensitivity by age 4 - while being cautioned that a switch to soy formula is often not a reliable solution given frequent soy co-sensitization, and that reintroducing milk or soy at home without medical supervision in a previously reactive child carries residual risk."
      }
    ]
  },
  {
    "article_id": 288,
    "article_title": "Eczema",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Secondary bacterial or herpes simplex infection - both of which change management (adding antibiotics or antivirals) - is actively looked for whenever a previously controlled eczema flares acutely or looks atypical."
      },
      {
        "title": "Diagnosis",
        "content": "When assessing a child with eczema, a structured checklist is worked through: the distribution and skin findings (excoriated, weeping, crusted, or lichenified) are characterized, the itch is graded and compared with the child's baseline, exacerbating factors (food, contact irritants/allergens, medications, stress, heat/humidity, wool clothing) are identified, and secondary bacterial or herpes simplex infection is checked for. A food allergy workup (IgE/skin prick testing, and if indicated, a 4-6 week elimination trial with dietician support followed by a food challenge) is pursued only in moderate-to-severe eczema, particularly when there are accompanying GI symptoms or faltering growth - egg and cow's milk are the leading culprits."
      },
      {
        "title": "Management",
        "content": "The basic regimen is started or reinforced at every visit: frequent emollient use, avoiding soap and wool/nylon fabrics, and stepping up to topical corticosteroids or topical immunomodulators as needed for flares, with occlusive bandaging as an option for resistant areas. In a formula-fed infant under 6 months with severe eczema refractory to optimal emollient and moderate-potency topical steroid therapy, a trial of extensively hydrolyzed or amino-acid formula is considered. Throughout, the impact on sleep and daily life and on the family as a whole is asked about, since eczema's psychosocial burden is significant and support resources/counseling are offered when the condition is disrupting the household."
      }
    ]
  },
  {
    "article_id": 289,
    "article_title": "Functional Constipation",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "On exam, abdominal stool is checked for and a rectal exam performed: an enlarged, stool-filled rectum with open anal tone supports functional constipation, while a tight anal canal with an empty rectal vault (especially with a history of delayed meconium passage or failure to thrive) should raise concern for Hirschsprung disease and prompt referral for further workup (barium enema, anorectal manometry, rectal biopsy) rather than empiric constipation treatment."
      },
      {
        "title": "Diagnosis",
        "content": "In a child with infrequent, painful, or large-caliber stools, the diagnostic criteria are applied directly: at least 1 month with 2 or more of infrequent defecation (≤2/week), stool retention history, painful/hard bowel movements, large-diameter stools, or a palpable rectal fecal mass (plus, in toilet-trained children, weekly fecal incontinence or toilet-obstructing stool size). A history is taken targeting onset (after infancy favors functional; infancy-onset or delayed meconium passage favors Hirschsprung disease), with specific attention to withholding behaviors and any recent painful precipitant, including screening for streptococcal perianal disease or, when the history raises concern, sexual abuse."
      },
      {
        "title": "Management",
        "content": "Once functional constipation is confirmed, regular bowel/toilet training, dietary modification, sitz baths, and lubricants are started, with stimulant laxatives (senna, bisacodyl) reserved for refractory cases, and the family is counselled explicitly that treatment often needs to continue for months to years - stopping too soon is the most common reason for relapse. Associated dysfunctional voiding/recurrent UTIs are screened for and addressed, and referral for behavioral counseling is made when withholding behavior or toileting anxiety is prominent."
      }
    ]
  },
  {
    "article_id": 290,
    "article_title": "Hashimoto Thyroiditis",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In a child, especially a girl, presenting with a firm, nontender, irregularly enlarged (bosselated) goiter - with or without symptoms of [[171|hypothyroidism]] (growth deceleration, fatigue, constipation, dry skin, cold intolerance, weight gain, or declining school performance). If the child instead presents with hyperthyroid features (tachycardia, nervousness, heat intolerance, weight loss) without ophthalmopathy, hashitoxicosis is considered rather than assuming Graves disease. If a patient with known TPO antibodies develops unexplained acute or subacute neurologic/psychiatric symptoms, the rare possibility of Hashimoto encephalopathy (SREAT) is considered after other causes are excluded, given its responsiveness to corticosteroids."
      },
      {
        "title": "Diagnosis",
        "content": "TSH and free T4 are checked, and antithyroglobulin and TPO antibodies are sent, recognizing that positive antibodies support but do not confirm the diagnosis given their prevalence in unaffected people and in Graves disease. A thyroid ultrasound is obtained if the goiter is asymmetric or nodular rather than diffusely enlarged. A family history of thyroid disease is asked about specifically, and associated conditions are screened for (Down syndrome, Turner or Klinefelter syndrome, [[270|type 1 diabetes]], other autoimmune polyglandular features), with any child with type 1 diabetes receiving the recommended annual autoimmune thyroid screening. A thyroid scan/RAI uptake study is ordered for the hyperthyroid presentation without ophthalmopathy, expecting low or non-homogeneous uptake in hashitoxicosis versus high diffuse uptake in Graves disease."
      },
      {
        "title": "Management",
        "content": "Beta-blockade is used for symptomatic relief during the hyperthyroid phase as needed. Once hypothyroidism is confirmed, levothyroxine replacement is started and thyroid function followed periodically."
      },
      {
        "title": "Prognosis and outcome",
        "content": "The family is counselled that this hyperthyroid phase is typically self-limited over a period of months, and that a minority of adolescents (about 30%) can have spontaneous remission, so ongoing reassessment of the need for continued therapy is appropriate rather than assuming lifelong treatment from the outset in every case."
      }
    ]
  },
  {
    "article_id": 291,
    "article_title": "Drowning",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "In any drowning victim without an obvious traumatic mechanism or other apparent explanation, an underlying medical trigger is actively sought: seizure is considered the most likely underlying cause."
      },
      {
        "title": "Diagnosis",
        "content": "In the emergency department, pH is assessed on arrival, since it correlates with prognosis for cerebral recovery. The pulmonary consequences of aspiration — hypoxemia, decreased compliance, bronchospasm — are evaluated for, recognizing that ARDS is an important complication requiring close respiratory monitoring and support. Hematologic (hemolysis, coagulopathy) and renal (acute tubular necrosis) involvement is evaluated for in more severe cases. An ECG is obtained to evaluate for an arrhythmia or a congenitally prolonged QT interval that may have precipitated the event rather than resulted from it."
      },
      {
        "title": "Management",
        "content": "At the scene, immediate cardiopulmonary resuscitation once submersion has occurred is the single most important initial step, with prompt attention to airway, breathing, and circulation; up to 30% of drowning fatalities may be preventable with skilled on-scene resuscitation. Cold water immersion can have a protective hypothermic effect on the brain, so resuscitation efforts should generally continue even after prolonged submersion in cold water rather than being abandoned prematurely. Early intubation should be considered if there are signs of neurologic deterioration or the patient is unable to protect the airway. The pulmonary consequences of aspiration are managed accordingly, along with any hematologic and renal complications identified.\n\nPrevention counseling is tailored to age: for infants, constant attendance during bathing is emphasized (a baby should never be left alone in a bathtub, even briefly) along with securing buckets/containers of standing water; for toddlers, pool fencing (with self-closing, self-latching gates) and touch supervision (caregiver within arm's reach) are emphasized whenever the child is in or near water; for adolescents, avoiding alcohol and drug use during swimming or boating and consistent, correct use of a personal flotation device while boating are emphasized. If a family experiences a drowning death, proactive psychosocial support is provided, since this kind of sudden, unexpected death is particularly difficult to cope with."
      }
    ]
  },
  {
    "article_id": 292,
    "article_title": "Febrile Seizure",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "It is first classified as simple or complex using the specific criteria — generalized, under 15 minutes, single episode in 24 hours defines simple; any focal feature, duration of 15 minutes or more, or recurrence within 24 hours makes it complex — since this classification anchors both the workup and the prognosis discussion with families. Children at higher recurrence risk are identified (age under 18 months, family history, multiple seizures in the same illness, or a first seizure at a relatively low temperature) so families know what to expect and are not alarmed by a recurrence. If a seizure is prolonged (approaching or exceeding 30 minutes, meeting criteria for febrile status epilepticus), it is managed as status epilepticus while the underlying febrile illness continues to be investigated, with HHV-6/HHV-7 considered among the possible viral triggers in this specific scenario."
      },
      {
        "title": "Diagnosis",
        "content": "A lumbar puncture is performed at any age if there are clinical signs of meningitis or encephalitis (altered mental status, meningeal signs, focal findings), with a low threshold to perform one in any child under 12 months even without these signs, since [[238|bacterial meningitis]] can present subtly at that age. Vaccination status is asked about as part of the risk assessment. For a well-appearing, neurologically normal child with a simple febrile seizure and a clear source of fever, further workup (neuroimaging, EEG, lumbar puncture) is generally not needed."
      },
      {
        "title": "Management",
        "content": "Antipyretic use and anticonvulsant therapy questions are addressed using the framework that neither continuous nor intermittent anticonvulsant therapy is routinely recommended for children with simple febrile seizures, since the treatment decision should weigh the substantial side-effect burden of anticonvulsants against the benign natural history of the condition — this is a shared decision with the family rather than a fixed protocol."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Families are counselled clearly and proactively: they are reassured that simple febrile seizures are common (2–5% of children), are not associated with increased mortality, hemiplegia, or intellectual disability, and that the risk of later [[206|epilepsy]] after a simple febrile seizure is low (roughly 1.5–2.4%)."
      }
    ]
  },
  {
    "article_id": 293,
    "article_title": "Generalized Epilepsy",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "When the clinical picture doesn't fit the usual pattern, an evolving generalized epilepsy syndrome is distinguished from ordinary febrile seizures: febrile seizures persisting past age 6, febrile seizures occurring alongside afebrile generalized seizures, or a strong family history of epilepsy with variable seizure types should prompt evaluation for GEFS+ rather than reassurance about typical [[292|febrile seizure]] outcomes. In an infant presenting with myoclonic seizures in the first year of life, benign myoclonic epilepsy of infancy is kept on the differential, but distinguishing it from more severe epileptic encephalopathies (e.g., Dravet syndrome, West syndrome) often requires clinical follow-up rather than a single EEG or visit — over-committing to either diagnosis prematurely is avoided."
      },
      {
        "title": "Diagnosis",
        "content": "When a child presents with episodes of sudden staring or brief behavioral arrest lasting seconds, absence seizures are considered and an EEG with hyperventilation is obtained, since this can provoke the classic generalized 3-per-second spike-and-wave pattern and support the diagnosis. Since many generalized epilepsy syndromes have an identifiable genetic basis (GABA receptor and other ion channel gene variants), genetic testing is considered when the seizure phenotype, age of onset, and family history fit a recognizable hereditary pattern, since this can refine prognosis and inform family counseling about recurrence risk in future children and other relatives. The specific syndrome (e.g., absence epileptic syndrome vs. juvenile myoclonic epilepsy vs. other generalized epilepsy) and its intractability status are coded and documented, since these formal distinctions track meaningfully different management and prognosis pathways."
      },
      {
        "title": "Management",
        "content": "Families are counselled that most children with typical childhood absence [[206|epilepsy]] are neurologically and intellectually normal and often outgrow the condition by late childhood or adolescence."
      },
      {
        "title": "Prognosis and outcome",
        "content": "Roughly a quarter of children with typical childhood absence epilepsy will develop a generalized tonic-clonic seizure at some point (and 40–60% of absence-seizure patients more broadly)."
      }
    ]
  },
  {
    "article_id": 294,
    "article_title": "Heat-Related Illness",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "When heat illness does occur, the athlete is immediately removed from the hot environment and excess clothing is removed. If [[295|heat stroke]] is suspected — core temperature above 104–105°F with CNS dysfunction — it is treated as an emergency."
      },
      {
        "title": "Diagnosis",
        "content": "For [[367|heat exhaustion]] or more severe cramping, electrolytes are checked to guide IV fluid therapy rather than rehydrating empirically."
      },
      {
        "title": "Management",
        "content": "Prevention is the most effective intervention. Readily accessible fluids are provided and consumed at regular intervals before, during, and after activity. Gradual acclimatization to the climate, activity intensity/duration, and any uniform or protective gear is allowed rather than introducing full-intensity activity in heat immediately. Activity is modified based on conditions: duration/intensity is decreased, break frequency and duration are increased (preferably in shade), sessions are rescheduled to cooler times of day, and longer recovery time is provided between same-day sessions. Participation is avoided or limited in a child or adolescent who is currently ill or recently recovered from illness, especially gastrointestinal illness or fever, given the residual fluid deficit this creates. Breathable, light-colored clothing is chosen, helmets are removed between plays when applicable, and medication lists are reviewed for heat-illness-predisposing drugs (anticholinergics, antihistamines, stimulants, certain antiseizure medications) as well as supplement or drug misuse history. Personnel and equipment for treating heat illness are ensured to be available onsite during activities, and participants are closely monitored for early signs and symptoms of developing heat illness rather than waiting for overt collapse.\n\nHeat cramps are managed with oral electrolyte rehydration and gentle stretching. Heat [[334|syncope]] is treated with fluids, cooling, and supine positioning. For heat stroke, the ABCs are secured, 100% oxygen is given, and aggressive cooling is begun immediately, while complications such as rhabdomyolysis, myoglobinuria, and acute kidney injury are evaluated for and managed. A child is never left unattended in a parked vehicle, since nonexertional heat stroke in children most often results from exactly this scenario, given how quickly vehicle interior temperature rises above ambient."
      }
    ]
  },
  {
    "article_id": 295,
    "article_title": "Heat Stroke",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "Exertional heat stroke classically presents with hot, sweaty (not dry) skin, so the presence of sweating should not be reassuring in a child or adolescent with altered mental status, incoherence, or combativeness after heat exposure or exertion. Fluid resuscitation is more aggressive for exertional heat stroke than for other presentations."
      },
      {
        "title": "Diagnosis",
        "content": "A rectal temperature is obtained immediately - it is the only reliable measure of core temperature. A rectal temperature above 40-40.6C (104-105.1F, usually >41C/106F in exertional cases) with CNS dysfunction confirms the diagnosis and mandates immediate action. Labs are sent for electrolytes, renal and liver function, creatine kinase, and coagulation studies to catch rhabdomyolysis, acute kidney injury, hepatic injury, and DIC early."
      },
      {
        "title": "Management",
        "content": "Whole-body cooling is begun immediately, before or during transport if at all possible - total body immersion in ice water is most effective; if unavailable, ice-water towel massage, evaporative cooling with misting and fans, or cooling blankets/ice are used. Airway, breathing, and circulation are secured simultaneously, and monitors, a rectal temperature probe, and (in more severe cases) a Foley catheter and NG tube are placed. Isotonic IV/IO fluids (normal saline or lactated Ringer) are started - roughly 20-40 mL/kg or 800 mL/m2 in the first hour, more for exertional heat stroke - with further fluid then guided by central venous pressure to avoid overload, adding vasopressors if cardiac function appears reduced. Active cooling is stopped once rectal temperature reaches about 38.3-38.9C (101-102F) to avoid overshooting into hypothermia. Admission follows for close monitoring given how rapidly these complications can evolve. Because treatment delay directly worsens outcomes, confirmatory labs are not waited for before cooling and fluid resuscitation are started."
      }
    ]
  },
  {
    "article_id": 296,
    "article_title": "Hepatitis C Virus Infection",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "High-risk children are proactively screened — particularly those born to mothers who inject drugs or who are HIV-coinfected — since they carry the highest transmission risk (10–20% with maternal HIV coinfection) and stand to benefit most from early identification and eventual curative treatment."
      },
      {
        "title": "Diagnosis",
        "content": "For an infant born to an HCV-infected (HCV RNA-positive) mother, ALT is monitored periodically in infancy, and HCV antibody is checked at 18 months of age once passively transferred maternal antibody has had time to clear (it can otherwise persist and produce a false-positive result for up to 12+ months)."
      },
      {
        "title": "Management",
        "content": "A structured follow-up is planned rather than testing immediately. The mother is counselled that breastfeeding is safe and should not be discouraged on the basis of HCV status alone, since transmission risk is equivalent between breastfed and formula-fed infants despite detectable HCV RNA in colostrum. During delivery, prolonged rupture of membranes and invasive obstetric monitoring/procedures may modestly increase transmission risk, but cesarean delivery is not protective except specifically in HIV-HCV coinfected mothers, so mode of delivery should not be altered for HCV status alone.\n\nAntiviral treatment is deferred until after age 3, since spontaneous clearance can still occur in young children with vertically acquired infection; from age 12 onward, referral is made for evaluation for oral direct-acting antiviral therapy, given cure rates approaching 100% with these newer regimens."
      },
      {
        "title": "Prognosis and outcome",
        "content": "If a child is diagnosed with chronic HCV infection, the family is reassured that the pediatric course is generally more indolent than in adults, with lower rates of progression to cirrhosis or hepatocellular carcinoma in childhood, but the long-term stakes are also explained (HCV-related liver failure is the leading cause of adult liver transplantation in the US) to support engagement with monitoring and eventual treatment."
      }
    ]
  },
  {
    "article_id": 297,
    "article_title": "Human Papillomavirus Infection",
    "sections": [
      {
        "title": "Clinical paths",
        "content": "For anogenital warts in a young child, especially outside the context of consensual adolescent sexual activity, sexual abuse is evaluated for, since condyloma acuminata in a young child is a recognized presentation of abuse. For sexually active adolescents/young adults presenting with an abnormal Pap result, standard triage is applied: repeat Pap in 4-6 months for ASCUS (or HPV typing with colposcopy referral if high-risk type positive), repeat Pap every 4-6 months for LSIL with reliable follow-up (colposcopy if it progresses or persists, or direct colposcopy referral if follow-up is unreliable), and direct colposcopy referral for HSIL. In an infant presenting with stridor or recurrent respiratory obstruction, especially born to a mother with a history of genital warts, juvenile recurrent respiratory papillomatosis from vertical transmission is considered as a differential diagnosis."
      },
      {
        "title": "Diagnosis",
        "content": "For a child or adolescent with cutaneous warts (common, plantar, flat, or filiform), diagnosis is made clinically - biopsy or further workup is not routinely needed."
      },
      {
        "title": "Management",
        "content": "Cutaneous warts are managed with observation or destructive therapy as appropriate for location/symptoms.\n\nFor every eligible patient aged 9-26, the 9-valent HPV vaccine is offered: the 2-dose schedule (6 months apart) is used if starting before age 15, and the 3-dose schedule (0, 1-2, 6 months) is used if starting at 15 or older, or regardless of age if the patient is immunocompromised. Children under 15 with certain chronic conditions (asplenia, asthma, chronic granulomatous disease, chronic liver/lung/renal disease, CNS anatomic barrier defects, complement deficiency, diabetes, heart disease, [[162|sickle cell disease]]) are an exception - these patients still receive the standard 2-dose schedule despite their condition, not the 3-dose immunocompromised schedule. Patients with a prior HPV diagnosis (including prior genital warts or abnormal Pap results) are vaccinated as well, since it is highly unlikely they were infected with every vaccine-covered type."
      }
    ]
  }
]