Dumping syndrome commonly occurs after which surgery?

• A. Appendectomy
• B. Cholecystectomy
• C. Colectomy
• D. Gastric bypass

Answer: (D)

Dumping syndrome occurs when stomach contents move too quickly into the small intestine after procedures that bypass or remove part of the stomach and disrupt normal pyloric control. The surgery most commonly associated is gastric bypass, where a small stomach pouch is created and the normal pathway is altered, allowing rapid delivery of food into the small intestine. This rapid entry pulls fluid into the intestinal lumen, which can cause symptoms like dizziness, sweating, pallor, rapid heart rate, abdominal cramping, and diarrhea within minutes of a meal. A later phase can occur 1–3 hours after eating due to an exaggerated insulin release leading to hypoglycemia. To help prevent it, patients are advised to eat small, frequent meals, choose higher-protein and lower-simple-carbohydrate options, avoid drinking large amounts with meals, and rest after eating. The other surgeries listed don’t typically cause dumping because they don’t significantly alter the pathway or pace of gastric emptying.