Chapter 28: Gastrointestinal Conditions in Children

Gastrointestinal Conditions in Children details the diagnostic evaluation of GI disorders through laboratory tests, endoscopy, and imaging, while highlighting common congenital anomalies that require surgical intervention. Key congenital defects discussed include esophageal atresia and tracheoesophageal fistula (TEF), characterized by choking and cyanosis during feeding, and imperforate anus, which is identified by the failure to pass meconium. The text elaborates on pyloric stenosis, a narrowing of the pyloric sphincter presenting with projectile vomiting and an olive-shaped abdominal mass, requiring pyloromyotomy. Malabsorption disorders are explored, specifically celiac disease (gluten enteropathy), an autoimmune reaction to wheat, barley, and rye that damages intestinal villi, necessitating a lifelong gluten-free diet to prevent growth failure and abdominal distention. The chapter also covers structural defects like Hirschsprung’s disease (aganglionic megacolon), causing chronic constipation and ribbon-like stools, and intussusception, a medical emergency where the bowel telescopes into itself, producing currant jelly stools and severe pain. Management strategies for hernias, including inguinal and umbilical types, are reviewed alongside the risks of incarceration and strangulation. Significant attention is given to disorders of motility, including gastroenteritis and diarrhea, which pose severe risks of fluid and electrolyte imbalances due to the infant's larger relative surface area and higher metabolic rate. The text differentiates between isotonic, hypertonic, and hypotonic dehydration and outlines rehydration protocols using oral rehydrating solutions (ORS) and parenteral therapy. Gastroesophageal reflux (GER) and GERD are examined, with nursing care focusing on thickened feedings, upright positioning, and pharmacological management. The chapter further categorizes nutritional deficiencies, describing Failure to Thrive (FTT) in organic and nonorganic forms, protein malnutrition known as kwashiorkor, and vitamin deficiencies like rickets and scurvy. Acute infectious conditions such as appendicitis are detailed, noting McBurney’s point tenderness and the risks of rupture, along with parasitic infections like pinworms and roundworms. Finally, the summary addresses pediatric safety concerning accidental poisoning, including the management of acetaminophen overdose, lead poisoning (plumbism) from environmental sources, and the ingestion of foreign bodies.