Key result
Sleeve gastrectomy in patients with type 2 diabetes led to sustained long-term cardiometabolic improvements, including a 20% complete remission rate of diabetes and a 9 kg/m2 BMI decrease at 9 years.
Why the study?
No previous study had assessed the outcomes of sleeve gastrectomy beyond 5 years among adult patients with type 2 diabetes.
Does sleeve gastrectomy improve anthropometric and cardiometabolic outcomes in patients with type 2 diabetes over 9 years?
Cohort (n=361)
No
Does sleeve gastrectomy improve anthropometric and cardiometabolic outcomes in patients with type 2 diabetes over 9 years?
Sleeve gastrectomy in patients with type 2 diabetes leads to substantial and sustained improvements in weight, glycemic control, and cardiometabolic parameters up to 9 years post-surgery.
Sustained post-sleeve benefits in T2D may not yet change practice; leaves open need for RCTs to confirm causality.
Background No previous study assessed the outcomes of sleeve gastrectomy (SG) beyond 5 years among adult patients with type 2 diabetes (T2DM). We appraised the evolution of 20 outcomes at 1, 3, 5, 7, and 9 years. Methods This is a retrospective study of 361 consecutive T2DM patients who underwent SG at our institution (April 2011–December 2015). Postoperative data were compared to baseline and to previous time points using paired t tests. Diabetes status was also assessed at each time point. Results The sample consisted of 65.37% females. The mean preoperative age was 44.38 ± 9.50 years and body mass index (BMI) was 43.81 ± 6.98 kg/m 2 . Generally, most improvements occurred in the first year and were sustained on the long term. Postoperatively, there was a significant and sustained weight reduction, amounting to a mean decrease of 9 kg/m 2 in BMI at year 9 and associated excess weight loss between 59% year 1 and 46% year 9 . Fasting blood glucose decreased significantly across the five time points, from 9.27 ± 4.11 preop to 7.06 ± 2.70 year 9 mmol/L. Mean HbA1c significantly decreased from 8.1% preop to 6.77% year 9 . The prevalence of complete remission of T2DM was 20.45%, 19.44%, and 20% at 5, 7, and 9 years respectively, with significant reductions in percentages of patients using diabetes medications or insulin. Between 10% and 23% of patients experienced relapse of T2DM by 5–9 years. In comparison to baseline levels, mean blood pressure, triglycerides, high-density lipoprotein, low-density lipoprotein, total cholesterol, and hepatic enzymes levels all showed improvement in the long term. Conclusion Patients with T2DM experienced substantial improvements in most anthropometric and cardiometabolic outcomes within the first year, and these were sustained in the long term.
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Elhag et al. (2025) conducted a cohort in Type 2 diabetes (n=361). Sleeve gastrectomy vs. Baseline was evaluated on Complete remission of T2DM at 9 years. Sleeve gastrectomy in patients with type 2 diabetes led to sustained long-term cardiometabolic improvements, including a 20% complete remission rate of diabetes and a 9 kg/m2 BMI decrease at 9 years.
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