Primary Roux-en-Y Gastric Bypass Results in Greater Weight Loss at 15-Year Follow-Up Compared with Secondary Roux-en-Y Gastric Bypass After Failure of Gastric Band or Mason McLean Vertical Gastroplasty

Jun 4, 2020Obesity surgery

Greater 15-Year Weight Loss After First-Time Roux-en-Y Gastric Bypass Compared to After Revising Earlier Stomach Surgeries

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Abstract

Long-term weight loss percentage after secondary Roux-en-Y gastric bypass (RYGB) is 7.56%, significantly lower than 24.51% after primary RYGB.

Early postoperative complications occurred in 6.25% of secondary RYGB patients and 9.38% of primary RYGB patients.
Late postoperative complications were observed in 56.25% of secondary RYGB patients compared to 37.5% in primary RYGB patients.
Remission of obesity-related comorbidities was similar between secondary and primary RYGB patients.
Gastroesophageal reflux was more frequent after secondary RYGB at 43.75% compared to 25% after primary RYGB.
Quality of life scores and self-assessment of health status were comparable between both groups.

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PURPOSE: The aim of the study is to compare the outcomes of patients treated with secondary Roux-en-Y gastric bypass (RYGB) after adjustable gastric banding (AGB) or vertical banded gastroplasty (VBG) with those of patients having primary RYGB.

MATERIALS AND METHODS: Patients undergoing secondary RYGB after AGB or VBG between 1997 and 2004 with a minimal follow-up of 15 years were matched using a propensity score (according to gender, age, BMI, duration of follow-up) with comparable patients who underwent primary RYGB.

RESULTS: The mean follow-up was 16.50 years in the secondary RYGB group (N = 32) versus 16.33 years in the primary RYGB group (N = 32). Early postoperative complications rate was 6.25% in the secondary RYGBs versus 9.38% in the primary RYGBs (P = 1). Late postoperative complications and additional surgical procedures were 56.25% and 37.5% in the secondary and primary RYGB group, respectively (P = 0.21). Long-term (at 16-20 years) %TWL and %EWL were significantly lower (P < 0.01 and P = 0.013, respectively) after secondary RYGB (%TWL = 7.56%; %EWL = 17.15%) than after primary RYGB (%TWL = 24.51%; %EWL = 55.61%). Remission of obesity-related comorbidities was comparable (P > 0.05). Gastroesophageal reflux was more frequent after secondary RGYB-43.75% versus 25%, P < 0.05. Quality of life-Morehead-Ardelt II score (0.02 in secondary RYGB versus 0.69 in primary RYGB, P = 0.13), general self-assessment of health status and weight satisfaction were comparable.

CONCLUSION: Secondary RYGB after AGB or VBG is less efficient at weight loss, GERD remission and energy expenditure at 15 years after conversion. However, it is as effective for improvement/resolution of obesity-related comorbidities and is associated with similar QoL scores.

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Primary Roux-en-Y Gastric Bypass Results in Greater Weight Loss at 15-Year Follow-Up Compared with Secondary Roux-en-Y Gastric Bypass After Failure of Gastric Band or Mason McLean Vertical Gastroplasty

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