Nutrition and fluid optimization for patients with short bowel syndrome

Abstract

Short bowel syndrome (SBS) is characterized by nutrient malabsorption and occurs following surgical resection, congenital defect, or disease of the bowel. The severity of SBS depends on the length and anatomy of the bowel resected and the health of the remaining tissue. During the 2 years following resection, the remnant bowel undergoes an adaptation process that increases its absorptive capacity. Oral diet and enteral nutrition (EN) enhance intestinal adaptation; although patients require parenteral nutrition (PN) and/or intravenous (IV) fluids in the immediate postresection period, diet and EN should be reintroduced as soon as possible. The SBS diet should include complex carbohydrates; simple sugars should be avoided. Optimal fat intake varies based on patient anatomy; patients with end-jejunostomies can tolerate a higher proportion of calories from dietary fat than patients with a remnant colon. Patients with SBS are prone to deficiencies in vitamins, minerals, and essential fatty acids; serum levels should be periodically monitored and supplements provided as needed. Prebiotic or probiotic therapy may be beneficial for patients with SBS, although further research is needed to determine optimal protocols. Patients with SBS, particularly those without a colon, are at high risk of dehydration; oral rehydration solutions sipped throughout the day can help maintain hydration. One of the primary goals of SBS therapy is to reduce or eliminate dependence on PN/IV; optimization of EN and hydration substantially increases the probability of successful PN/IV weaning.