Absence of ileocecal valve in short bowel syndrome predisposes to what?

• A. Hyperbilirubinemia due to cholestasis
• B. Nutritional deficiencies and cholestasis
• C. Increased intestinal motility
• D. Infection risk

Answer: (B)

Losing the ileocecal valve in short bowel syndrome removes a key barrier that slows transit and keeps colonic bacteria from migrating into the ileum. Without that control, transit through the small intestine becomes rapid and bacterial overgrowth in the small bowel can develop. This overgrowth disrupts nutrient absorption because bacteria consume nutrients and deconjugate bile acids, impairing fat digestion and the formation of micelles. Fat absorption suffers, leading to deficiencies of fat-soluble vitamins (A, D, E, K) and other nutrients, contributing to overall nutritional deficits. The altered bile acid metabolism and ongoing malabsorption also raise the risk of cholestasis, particularly in patients who require parenteral nutrition or have chronic fat malabsorption. So the absence of the valve predisposes to both nutritional deficiencies and cholestasis through rapid transit and bacterial overgrowth that impair absorption and bile acid handling.