Complications of the Biliopancreatic diversion with duodenal switch

• Fat malabsorption results in diarrhea and foulsmelling gas in approximately 30% of patients.
• The potential nutritional deficiencies mandate frequent follow-up visits, with close monitoring and supplementation of multivitamins and minerals.
• Malabsorption of fat soluble vitamins (vitamins A, D, E, and K)
• Vitamin A deficiency, which causes night blindness
• Vitamin D deficiency, which causes osteoporosis
• Iron deficiency
• Protein-energy malnutrition (may require a second operation to lengthen the common channel)