Allison R Schulman1, Nitin Kumar2, Christopher C Thompson1. 1. Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA. 2. Bariatric Endoscopy Institute, Addison, Illinois, USA.
Abstract
BACKGROUND AND AIMS: Weight regain after Roux-en-Y gastric bypass (RYGB) correlates with dilated gastrojejunal anastomosis (GJA). Endoscopic sutured transoral outlet reduction (TORe) is a safe and effective management and has predominantly been performed by either placing interrupted sutures at the GJA or the creation of a purse-string suture. The aim of the current study was to compare these techniques. METHODS: All patients undergoing TORe for weight regain after RYGB were prospectively enrolled. Primary outcome was mean percent total weight loss (%TWL) at 3 and 12 months. Secondary outcomes included percent excess weight loss (%EWL), percent regained weight lost (%RWL), and total weight loss. Proportions were compared using the Fisher exact test and continuous variables using the Student t test. A P = .05 was significant. Multivariable regression analysis was performed. RESULTS: Two hundred forty-one patients were enrolled (purse string = 187, interrupted = 54). There was no statistical difference between the purse-string and interrupted groups at 3 months in %TWL (8.6 vs 8.0, P = .41), %EWL (20.5 vs 16.7, P = .39), % RWL (44.7 vs 33.3, P = .56), and total weight loss (9.5 vs 11.3, P = .32). At 12 months the purse-string group achieved statistically significant improvement in %TWL (8.6 vs 6.4, P = .02), %EWL (19.8 vs 11.7, P < .001), %RWL (40.2 vs 27.8, P = .02), and total weight loss (9.5 vs 7.8, P = .04). Multivariable regression showed that technique (P = .006) was an independent predictor of %TWL at 12 months. CONCLUSIONS: TORe is effective in treatment of weight regain after failed gastric bypass. The purse-string technique results in greater weight loss at 12 months than the traditional interrupted suture pattern.
BACKGROUND AND AIMS: Weight regain after Roux-en-Y gastric bypass (RYGB) correlates with dilated gastrojejunal anastomosis (GJA). Endoscopic sutured transoral outlet reduction (TORe) is a safe and effective management and has predominantly been performed by either placing interrupted sutures at the GJA or the creation of a purse-string suture. The aim of the current study was to compare these techniques. METHODS: All patients undergoing TORe for weight regain after RYGB were prospectively enrolled. Primary outcome was mean percent total weight loss (%TWL) at 3 and 12 months. Secondary outcomes included percent excess weight loss (%EWL), percent regained weight lost (%RWL), and total weight loss. Proportions were compared using the Fisher exact test and continuous variables using the Student t test. A P = .05 was significant. Multivariable regression analysis was performed. RESULTS: Two hundred forty-one patients were enrolled (purse string = 187, interrupted = 54). There was no statistical difference between the purse-string and interrupted groups at 3 months in %TWL (8.6 vs 8.0, P = .41), %EWL (20.5 vs 16.7, P = .39), % RWL (44.7 vs 33.3, P = .56), and total weight loss (9.5 vs 11.3, P = .32). At 12 months the purse-string group achieved statistically significant improvement in %TWL (8.6 vs 6.4, P = .02), %EWL (19.8 vs 11.7, P < .001), %RWL (40.2 vs 27.8, P = .02), and total weight loss (9.5 vs 7.8, P = .04). Multivariable regression showed that technique (P = .006) was an independent predictor of %TWL at 12 months. CONCLUSIONS:TORe is effective in treatment of weight regain after failed gastric bypass. The purse-string technique results in greater weight loss at 12 months than the traditional interrupted suture pattern.
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