Nutritional Deficiencies and Bariatric Surgery
Dietary intolerance and poor oral intake account for a disproportionate number of emergency department visits and readmissions after bariatric surgery. Micronutrient, vitamin, and protein deficiencies can occur after both malabsorptive and restrictive weight-loss operations, and they are best mitigated against by conscientious preoperative counseling and vigilance in follow-up. Routine vitamin supplementation can prevent the need for unnecessary laboratory testing, while symptoms of dumping syndrome can frequently be managed with dietary and behavioral modification alone. Alternative enteral feeding access for alimentary supplementation can be safely performed surgically or with assistance by interventional radiology, and should be considered in the management of perforation, early anastomotic leak, surgical revision, or patients with refractory malnourishment.