Obesity surgeryAug 8, 2019

Comparing Repeat Sleeve Gastrectomy and Gastric Bypass After Failed Weight Loss from Sleeve Gastrectomy

GLP-1 Therapies Weekly Brief ↗PubMed ↗DOI ↗

Updated Mar 27, 2026

Abstract

Excess weight loss at 1 year was 69.5% for re-sleeve gastrectomy (re-SG) compared to 61.2% for Roux-en-Y gastric bypass (RYGB).

The mean interval between primary sleeve gastrectomy and re-surgery was approximately 41.5 months for re-SG and 43.2 months for RYGB.
The mean operative time was shorter for re-SG at 103 minutes compared to 129.4 minutes for RYGB.
One death (1.7%) occurred in the re-SG group, while 25 complications (17.4%) were reported across both groups.
At 1 year, the mean body mass index was 31.6 for re-SG and 32.5 for RYGB, indicating no significant difference.
Both re-SG and RYGB demonstrated similar outcomes in weight loss during the first year after surgery.

Simplified

BACKGROUND: Few series are available on the results of repeat sleeve gastrectomy (re-SG) and Roux-en-Y gastric bypass (RYGB) performed to manage the failure of primary sleeve gastrectomy (SG). The objective of this study was to compare the short- and medium-term outcomes of re-SG and RYGB after SG.

MATERIAL & METHODS: Between January 2010 and December 2017, patients undergoing re-SG (n = 61) and RYGB (n = 83) for failure of primary SG were included in this study. Revisional surgery was proposed for patients with insufficient excess weight loss (EWL ≤ 50%) or weight regain. The primary endpoint was the comparison of weight loss in the re-SG group and the RYGB group at the 1-year follow-up. The secondary endpoints were overall mortality and morbidity, specific morbidity, length of stay, weight loss, and correction of comorbidities.

RESULTS: The mean interval between SG and re-SG was 41.5 vs. 43.2 months between SG and RYGB (p = 0.32). The mean operative time was 103 min (re-SG group) vs. 129.4 min (RYGB group). One death (1.7%; re-SG group) and 25 complications (17.4%; 9 in the re-SG group, 16 in the RYGB group) were observed. At the 1 year, mean body mass index was 31.6 in the re-SG group and 32.5 in the RYGB group (p = 0.61) and excess weight loss was 69.5 vs. 61.2, respectively (p = 0.05).

CONCLUSION: Re-SG and RYGB as revisional surgery for SG are feasible with acceptable outcomes and similar results on weight loss on the first postoperative year.

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Comparing Repeat Sleeve Gastrectomy and Gastric Bypass After Failed Weight Loss from Sleeve Gastrectomy

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