Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery

One-stage conversion of Roux-en-Y gastric bypass to a modified biliopancreatic diversion with duodenal switch using a hybrid sleeve concept.

PMID 27260654


Insufficient weight loss (percentage of excess weight loss [%EWL]<50%) is observed in approximately 20% of patients after Roux-en-Y gastric bypass (RYGB). Surgical revision can be performed by various procedures including malabsorptive techniques. Conversion to a biliopancreatic diversion with duodenal switch (BPD/DS) remains a complex technique which cannot always be performed as a one-stage procedure. This study evaluates the conversion of RYGB to BPD/DS using a novel gastric reconstruction technique based on a "hybrid sleeve" using the existing gastrojejunal anastomosis of the RYGB. All the procedures were performed at a private hospital. The consecutive patients who were eligible for conversion since 2010 were reviewed; eligibility included %EWL≤50% and normal gastric pouch. The gastrojejunal anastomosis of the RYGB was untouched and the gastric fundus was resected. The gastric continuity was restored by an anastomosis between a short segment of the alimentary limb and the gastric antrum. A standard BPD/DS was then performed without restoration of the jejunal continuity. Fourteen patients were converted to BPD/DS for a mean body mass index (BMI) of 44.3±6.0 kg/m This procedure allows for an easier conversion of RYGB to BPD/DS and appears to be the most effective procedure for resuming weight loss. Nutritional consequences and weight loss are similar to the primary BPD/DS results. However, the benefits and risks must be carefully assessed according to the definition of weight loss failure.

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BPD, ≥98% (HPLC)