{
 "topic": "Peptic Ulcer Disease",
 "slug": "peptic-ulcer-disease",
 "category_id": 15124,
 "summary": "How pediatric peptic ulcer disease presentation shifts dramatically by age, the role of H. pylori versus NSAIDs, and diagnostic and treatment steps including triple therapy.",
 "written_by": "claude-sonnet",
 "references": [
  {
   "title": "2021_Fleisher_&_Ludwig's_Textbook_of_Pediatric_Emergency_Medicine.epub",
   "author": null,
   "pages": []
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  {
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   ]
  },
  {
   "title": "Signs and Symptoms in Pediatrics",
   "author": "Henry M. Adam,Jane Meschan Foy",
   "pages": [
    425
   ]
  },
  {
   "title": "Pediatric Decision-Making Strategies",
   "author": "Pomeranz, Albert J.",
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    91,
    112
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  },
  {
   "title": "Berkowitz's Pediatrics",
   "author": "Berkowitz, Carol D.;",
   "pages": [
    961,
    963
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  }
 ],
 "short": [
  {
   "title": "In short",
   "content": "- Peptic ulcer disease (PUD) is a deep mucosal lesion disrupting the muscularis mucosa of the stomach or duodenum, defined by some sources as a mucosal/submucosal break of at least 5 mm, resulting from an imbalance between damaging factors (acid, pepsin) and mucosal protective mechanisms (mucus, bicarbonate secretion).\n- Gastric ulcers occur mainly on the lesser curvature/antrocorporeal transitional zone; about 90% of duodenal ulcers occur in the duodenal bulb. Duodenal ulcers are more common than gastric ulcers overall, and H. pylori is the leading cause.\n- Overall childhood prevalence is low: PUD/gastritis/gastropathy accounts for roughly 5\u201310% of children seeking care for abdominal pain; incidence of pediatric PUD is estimated at 0.5\u20134.4 per 100,000. H. pylori-related PUD incidence is declining in developed countries with better medical therapy, while non-H. pylori PUD (more often gastric) has been increasing.\n- Presentation varies sharply by age: stress ulcers cause about 80% of PUD in early infancy and often present as medical emergencies \u2014 nonspecific feeding difficulty and vomiting, or upper GI bleeding/perforation (gastric perforation can be the presenting sign in the neonatal period). Preschool children have poorly localized abdominal pain, vomiting, or GI hemorrhage (hematemesis or melena), affecting boys and girls equally. School-age children and adolescents present more like adults: epigastric or periumbilical pain, nausea, and dyspepsia, classically waxing/waning, sharp or gnawing, sometimes waking the child at night; teenage PUD shows a male predominance of nearly 4:1.\n- Up to 25% of children with duodenal ulcers present \"silently\" with painless upper GI bleeding and no other symptoms; roughly another 25% present with bleeding plus antecedent pain; the remainder present with abdominal pain or recurrent vomiting. Hematemesis or melena occurs in up to half of pediatric PUD patients overall.\n- Independent risk factors/red flags for ulcer or erosion: epigastric tenderness, pain that awakens the child at night, hematemesis, melena, and stunted weight gain.\n- The most common ulcer type in children is acute, drug-induced (NSAID) gastric/duodenal ulceration; chronic peptic ulcers can also occur in prepubertal children and teens with no clear precipitant. Family history of PUD is reported in 25\u201350% of affected children.\n- H. pylori link in children is weaker than in adults, but roughly two-thirds of pediatric patients with endoscopically confirmed PUD have H. pylori infection. Diagnosis of H. pylori uses biopsy culture (gold standard); serology (IgG antibodies) is often unreliable in children and should be reserved for those with endoscopically/radiographically confirmed ulcers.\n- Treatment of H. pylori-associated PUD: triple therapy (a proton pump inhibitor plus two antibiotics) for 7\u201314 days (10 days used in a case example), often followed by an extended period (e.g., 2 months) of continued acid suppression.\n- Acute GI bleeding is the most common PUD complication in children, often following longstanding antecedent epigastric pain; perforation is rarer. Endoscopy (esophagogastroduodenoscopy) is the standard diagnostic method for confirming PUD."
  }
 ],
 "long": [
  {
   "title": "Definition",
   "content": "Peptic ulcer disease is the end result of inflammation from an imbalance between cytoprotective and cytotoxic factors acting on the gastric and duodenal mucosa. Some sources define it more precisely as a break in the gastric mucosa or submucosa with a minimum diameter of 5 mm; more broadly, a peptic ulcer is a deep mucosal lesion that disrupts the muscularis mucosa layer of the gastric or duodenal wall, distinguishing it from more superficial gastritis or gastropathy \u2014 though these entities frequently coexist along a shared disease continuum, since peptic ulceration is almost always accompanied by some degree of gastritis or gastropathy. PUD is classified as primary (e.g., caused by H. pylori) or secondary (e.g., caused by Crohn disease). Anatomically, gastric ulcers occur mainly at the antrocorporeal mucosal transitional zone along the lesser curvature, while about 90% of duodenal ulcers occur in the duodenal bulb; duodenal ulcers are overall more common than gastric ulcers in children, and H. pylori is the most common identified cause."
  },
  {
   "title": "Epidemiology",
   "content": "PUD is uncommon in childhood relative to adults, accounting for roughly 5\u201310% of children seeking medical attention for abdominal pain. Pediatric incidence is estimated at 0.5 to 4.4 cases per 100,000, largely attributable to H. pylori infection and more commonly involving the duodenum. In developed countries, the incidence of H. pylori-related PUD is declining due to improved medical therapy, while the incidence of non-H. pylori PUD \u2014 which more often involves the stomach \u2014 has been increasing."
  },
  {
   "title": "Etiology",
   "content": "The most common ulcer type in children is acute, drug-induced ulceration of the stomach and duodenum from NSAID use. Chronic peptic ulcers can also develop in prepubertal children and teenagers without an apparent precipitating factor, and a family history of PUD is reported in 25\u201350% of affected children. Stress-related ulcers are a distinct and important cause specifically in early infancy, accounting for about 80% of PUD at that age. The relationship between H. pylori and PUD is well established in adults but somewhat less strong in children; nonetheless, roughly two-thirds of pediatric patients with endoscopically confirmed PUD have H. pylori infection, making it the single most significant identifiable infectious cause in this age group."
  },
  {
   "title": "Clinical features",
   "content": "Presentation varies dramatically with age. In early infancy, stress ulcers predominate and often present as medical emergencies \u2014 nonspecific feeding difficulty and vomiting, or upper GI bleeding or perforation; gastric perforation can even be the initial presenting sign in the neonatal period. Older infants and preschool-age children more often show nonspecific findings: poorly localized abdominal pain, vomiting, or GI hemorrhage as hematemesis or melena, with boys and girls affected equally at this age. School-age children and adolescents present in a pattern resembling adult disease: epigastric or periumbilical pain, nausea, and dyspepsia (epigastric pain or fullness), classically described as waxing and waning, sharp or gnawing, and sometimes waking the child at night or in the early morning; among teenagers, a male predominance emerges, with boys outnumbering girls by nearly 4:1. Overall, hematemesis or melena is reported in up to half of pediatric PUD patients. Up to 25% of children with duodenal ulcers present \"silently\" with painless upper GI bleeding and no other symptoms, roughly another 25% present with bleeding plus antecedent pain, and the remainder present with abdominal pain or recurrent vomiting. Independent clinical risk factors for ulcer or erosion include epigastric tenderness, pain that awakens the child at night, hematemesis, melena, and stunted weight gain. Unlike the classic adult pattern (pain on an empty stomach, relieved by eating), children's ulcer pain often does not follow this specific pattern, though postprandial epigastric pain improved by eating can occur and should still raise suspicion when present alongside a family history."
  },
  {
   "title": "Diagnostics",
   "content": "Esophagogastroduodenoscopy is the standard diagnostic method for confirming PUD, allowing direct visualization of mucosal abnormalities with or without accompanying histologic changes. H. pylori infection is diagnosed by culture of gastric and duodenal biopsy specimens obtained at endoscopy; serologic tests measuring H. pylori-specific IgG antibodies are often unreliable in children and should be reserved for those who already have endoscopically or radiographically confirmed ulcers, rather than used as a primary screening tool. A positive family history, microcytic anemia, and stool positive for occult blood should raise clinical suspicion and prompt referral to a pediatric gastroenterologist for further evaluation."
  },
  {
   "title": "Differential diagnosis",
   "content": "PUD symptoms overlap substantially with other causes of pediatric abdominal pain, including non-ulcer (functional) dyspepsia, functional abdominal pain, gastroesophageal reflux/esophagitis, eosinophilic esophagitis or gastroenteritis, celiac disease, lactose intolerance, inflammatory bowel disease, irritable bowel syndrome, chronic pancreatitis, hepatobiliary disease, and constipation, among others \u2014 a detailed history is essential to distinguish these given how much clinical overlap exists. Esophageal varices from portal hypertension (intrinsic liver disease) or portal vein thrombosis (from sepsis, pancreatitis, omphalitis, or umbilical vein catheterization in neonates) should be considered in a child with upper GI bleeding, particularly with a relevant neonatal or liver disease history; ultrasound or endoscopy can assess for varices when the patient is not actively bleeding. In an infant with vomiting, pyloric stenosis (classically presenting between 3\u20136 weeks of age with nonbilious vomiting progressing to frequent projectile vomiting, sometimes with coffee-ground or blood-positive emesis, diagnosed by ultrasound) is an important alternative diagnosis to distinguish from PUD-related vomiting."
  },
  {
   "title": "Treatment",
   "content": "Treatment for H. pylori-associated PUD consists of triple therapy \u2014 a proton pump inhibitor combined with two antibiotics \u2014 for 7\u201314 days, sometimes followed by an extended course (e.g., 2 months) of continued acid suppression to support mucosal healing. Acute gastrointestinal bleeding is the most common complication of childhood PUD, often following longstanding antecedent epigastric pain, while perforation occurs more rarely; identifying and stabilizing the rare child with a significant complication (hemorrhage, perforation, gastric outlet obstruction) is the primary goal of emergency management, while most children can have outpatient diagnostic testing initiated, a gastric antisecretory regimen started, and close follow-up arranged."
  }
 ],
 "clinical": [
  {
   "title": "Practical management",
   "content": "Approach suspected PUD differently depending on age. In an infant with feeding difficulty, vomiting, or unexplained GI bleeding, consider stress ulcer as a leading cause and manage as a potential emergency, since infant PUD can present with perforation or significant bleeding; involve pediatric GI/surgery early if there is any sign of hemodynamic instability or acute abdomen. In a school-age child or adolescent presenting with epigastric or periumbilical pain, nausea, and dyspepsia \u2014 especially with a family history, nocturnal pain, or occult blood in the stool \u2014 refer for pediatric GI evaluation and endoscopy rather than treating empirically for an extended period, since endoscopy both confirms PUD and enables H. pylori biopsy testing.\n\nIn the emergency setting, first determine whether the child has a significant complication (GI hemorrhage, perforation, or gastric outlet obstruction) requiring stabilization, since this is rare but is the primary reason to escalate beyond outpatient management. For most children in whom PUD is suspected as a cause of abdominal pain, it is appropriate to arrange outpatient diagnostic workup, start a gastric antisecretory regimen empirically, and ensure close follow-up rather than admitting for immediate inpatient workup.\n\nWhen H. pylori is confirmed on biopsy, treat with triple therapy (PPI plus two antibiotics) for 7\u201314 days, followed by continued acid suppression for a period afterward (e.g., 2 months) to support healing \u2014 do not rely on serology to make the initial diagnosis, reserving it only for children who already have an endoscopically or radiographically confirmed ulcer. Actively review medication history for NSAID use, since drug-induced ulceration is the most common ulcer type in children, and address this modifiable cause directly (stopping the NSAID) as part of management alongside acid suppression."
  }
 ]
}