4.5 Article

Comparison of the Long-term Outcomes of RYGB and OAGB as Conversion Procedures After Failed LSG - a Case-Control Study

Journal

JOURNAL OF GASTROINTESTINAL SURGERY
Volume 26, Issue 11, Pages 2255-2265

Publisher

SPRINGER
DOI: 10.1007/s11605-022-05395-w

Keywords

Bariatric surgery; Sleeve gastrectomy; Gastric bypass

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This study compared the effects of RYGB and OAGB on patients with failed LSG surgery. The results showed that there was no significant difference in the average %EBWL between the two groups after a 5-year follow-up. However, complete long-term diabetes remission was significantly higher in the OAGB group than in the RYGB group. There were no other significant differences in the remission rates of other comorbidities or in the complications between the two groups.
Objective To compare the effect of RYGB and OAGB on patients after failed treatment of obesity by laparoscopic sleeve gastrectomy (LSG). Study Design A case-control study based on a prospectively maintained database of reoperated patients after failed LSG, which included 33 patients who underwent RYGB conversion and 47 patients who underwent OAGB conversion. Result The mean %EBWL after a 5-year follow-up for RYGBc vs OAGBc was 84.04% vs 72.95% (p = 0.2176), respectively. Complete long-term diabetes remission was observed significantly more frequently in the OAGBc than in the RYGBc group (97.3% vs 33%; p = 0.035). There were no other statistically significant differences in the remission rate of comorbidities between RYGBc and OAGBc: hypertension 30% vs 27.3% (p = 0.261), dyslipidemia 83.3% vs 59.1% (p = 0.277), OSAS 100% vs 60% (p = 0.639), and GERD 40% vs 71.4% (p > 0.99), respectively. 7 patients were newly diagnosed with GERD after OAGBc and none after RYGBc. There were no statistically significant differences in the number of complications between the OAGBc and RYGB groups. The Comprehensive Complication Index was 17.85 (+/- IQR 29.6) in the OAGBc group and 14.92 (+/- IQR 21.75) in the RYGBc group (p = 0.375). Conclusion The authors recognized complete long-term type 2 diabetes remission after conversion surgery as the most relevant difference, where the OAGB variety was found superior for its better efficacy. Any other statistically significant differences in the consequences after both conversion procedures used after the failure of LSG have not been stated. Both methods therefore can be considered to complete the initial treatment, considering the preferences and individual burdens of the patients.

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