Efficacy of Bariatric Surgery in Type 2 Diabetes Mellitus Remission: the Role of Mini Gastric Bypass/One Anastomosis Gastric Bypass and Sleeve Gastrectomy at 1 Year of Follow-up. A European survey

Sep 6, 2015Obesity surgery

How Mini Gastric Bypass and Sleeve Surgery Help Type 2 Diabetes Remission After One Year: A European Survey

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Abstract

Sixty-three point seven percent of patients achieved type 2 diabetes remission after bariatric surgery.

Among the 313 patients with type 2 diabetes, 85.4% of those who underwent mini gastric bypass or one anastomosis gastric bypass (MGB/OAGB) were in remission after one year, compared to 60.9% of those who had sleeve gastrectomy (SG).
The average body mass index (BMI) was lower for patients who underwent MGB/OAGB (33.1 ± 6.6) compared to those who received SG (35.9 ± 5.9).
No correlation was observed between the percentage change in hemoglobin A1c (HbA1c) and fasting plasma glucose (FPG) levels and the reduction in BMI for either surgical procedure.
Higher baseline HbA1c levels, preoperative use of insulin or oral antidiabetic medications, and a duration of diabetes longer than 10 years were identified as negative predictors of diabetes remission.
MGB/OAGB was found to be a positive predictor of diabetes remission, with an odds ratio of 3.888.

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BACKGROUND: A retrospective study was undertaken to define the efficacy of both mini gastric bypass or one anastomosis gastric bypass (MGB/OAGB) and sleeve gastrectomy (SG) in type 2 diabetes mellitus (T2DM) remission in morbidly obese patients (pts).

METHODS: Eight European centers were involved in this survey. T2DM was preoperatively diagnosed in 313/3252 pts (9.62%). In 175/313 patients, 55.9% underwent MGB/OAGB, while in 138/313 patients, 44.1% received SG between January 2006 and December 2014.

RESULTS: Two hundred six out of 313 (63.7 %) pts reached 1 year of follow-up. The mean body mass index (BMI) for MGB/OAGB pts was 33.1 ± 6.6, and the mean BMI for SG pts was 35.9 ± 5.9 (p < 0.001). Eighty-two out of 96 (85.4%) MGB/OAGB pts vs. 67/110 (60.9%) SG pts are in remission (p < 0.001). No correlation was found in the % change vs. baseline values for hemoglobin A1c (HbA1c) and fasting plasma glucose (FPG) in relation to BMI reduction, for both MGB/OAGB or SG (ΔFPG 0.7 and ΔHbA1c 0.4 for MGB/OAGB; ΔFPG 0.7 and ΔHbA1c 0.1 for SG). At multivariate analysis, high baseline HbA1c [odds ratio (OR) = 0.623, 95% confidence interval (CI) 0.419-0.925, p = 0.01], preoperative consumption of insulin or oral antidiabetic agents (OR = 0.256, 95% CI 0.137-0.478, p = <0.001), and T2DM duration >10 years (OR = 0.752, 95% CI 0.512-0.976, p = 0.01) were negative predictors whereas MGB/OAGB resulted as a positive predictor (OR = 3.888, 95% CI 1.654-9.143, p = 0.002) of diabetes remission.

CONCLUSIONS: A significant BMI decrease and T2DM remission unrelated from weight loss were recorded for both procedures if compared to baseline values. At univariate and multivariate analyses, MGB/OAGB seems to outperform significantly SG. Four independent variables able to influence T2DM remission at 12 months have been identified.

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Efficacy of Bariatric Surgery in Type 2 Diabetes Mellitus Remission: the Role of Mini Gastric Bypass/One Anastomosis Gastric Bypass and Sleeve Gastrectomy at 1 Year of Follow-up. A European survey

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