Failed Sleeve Gastrectomy: Single Anastomosis Duodenoileal Bypass or Roux-en-Y Gastric Bypass? A Multicenter Cohort Study

Phillip J Dijkhorst,Ignace M C Janssen,Frits J Berends,Edo O Aarts,Abel B Boerboom,Eric J Hazebroek,Dingeman J Swank,René M J Wiezer

doi:10.1007/s11695-018-3429-z

Phillip J Dijkhorst, Ignace M C Janssen + Show 6 more

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https://doi.org/10.1007/s11695-018-3429-z

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BackgroundSleeve gastrectomy (SG) has become the most performed bariatric procedure to induce weight loss worldwide. Unfortunately, a significant portion of patients show insufficient weight loss or weight regain after a few years.ObjectiveTo investigate the effectiveness of the single anastomosis duodenoileal (SADI) bypass versus the Roux-en-Y gastric bypass (RYGB) on health outcomes in morbid obese patients who had undergone SG previously, with up to 2 years of follow-up.MethodsFrom 2007 to 2017, 140 patients received revisional laparoscopic surgery after SG in four specialized Dutch bariatric hospitals. Data was analyzed retrospectively and included comparisons for indication of surgery, vitamin/mineral deficiencies, and complications; divided into short-, medium-term. To compare weight loss, linear regression and linear mixed models were used.ResultsConversion of a SG to SADI was performed in 66 patients and to RYGB in 74 patients. For patients in which additional weight loss was the main indication for surgery, SADI achieved 8.7%, 12.4%, and 19.4% more total body weight loss at 6, 12, and 24 months compared to RYGB (all p < .001). When a RYGB was indicated in case of gastroesophageal reflux or dysphagia, it greatly reduced complaints almost directly after surgery. Furthermore, a similar amount of complications and nutritional deficiencies was observed for both groups. There was no intra- or post-operative mortality.ConclusionConversion into a SADI resulted in significantly more weight loss while complications rates and nutritional deficiencies were similar and may therefore be considered the recommended operation for patients in which only additional weight loss is required.

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MethodsThe sleeve gastrectomy (SG), as derived from the first step of the duodenal switch procedure, has recently become the most performed bariatric procedure worldwide
The aim of this study is to investigate the effectiveness of the single anastomosis duodenoileal (SADI) versus the Roux-en-Y gastric bypass (RYGB) on health outcomes in morbid obese patients who have undergone SG with up to 2year follow-up
A SADI was performed on 66 patients and 74 patients were converted to a RYGB

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Introduction

The sleeve gastrectomy (SG), as derived from the first step of the duodenal switch procedure, has recently become the most performed bariatric procedure worldwide. If weight loss is inadequate or patients experience weight regain, they are advised to undergo revisional surgery. This is especially apparent in those with a higher initial BMI before the SG [2, 3]. Perhaps more concerning are recent reports of patients developing Barrett esophagus as soon as 5 years post-SG, which theoretically increases the risk of esophageal carcinoma [4,5,6,7] To compound matters, these patients do not benefit enough from the SG as a stand-alone procedure and are advised to undergo revisional surgery. A significant portion of patients show insufficient weight loss or weight regain after a few years

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