Abstract
Laparoscopic Roux en-Y gastric bypass (LRYGB) is an established therapeutic modality for type 2 diabetes mellitus (T2DM). However, there is paucity of data on the outcomes of LRYGB on T2DM beyond 2years. This study aimed to examine the medium-term effects of LRYGB on T2DM and determine the predictors of T2DM resolution. Prospective data were collected for all consecutive LRYGB performed from September 2009 to November 2010. The American Diabetes Association guidelines were used to define complete (CR) or partial (PR) remission of diabetes. Diabetes status was considered improved when there was >50% reduction in the dose of medications or when glycaemic control was achieved after stopping insulin. The effects of baseline characteristics, diabetes data and weight loss data at 4 years on T2DM remission were studied. Forty-six patients with T2DM underwent LRYGB with mean±SD age and body mass index (BMI) of 48.6±9.6 years and 50.4±6.5kg/m2, respectively. Median (IQR, interquartile range) duration of T2DM preoperatively was 60 (36-126) months. Median (IQR) follow-up was 52 (50-57) months. T2DM remission was achieved in 64% of patients (44% CR, 20% PR), and a further 28% of patients had improvement in their diabetes status. Multivariate analyses demonstrated significant excess weight loss (EWL) [P=0.008] and lower BMI [P=0.04] at 4 years to be the only independent predictors of T2DM medium-term outcomes. The medium-term effects of LRYGB on T2DM remission/improvement were maintained in 92% of patients. EWL and lower BMI at 4years were independent predictors of T2DM remission.
Published Version
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