Bariatric surgery achieved type 2 diabetes remission in 57.5% of patients at 2 years and 36.4% at 5 years, with 33.4% of those in remission at 2 years experiencing relapse by 5 years.
Cohort (n=186)
No
What are the rates and determinants of diabetes remission and relapse following bariatric surgery in patients with obesity and Type 2 diabetes?
Bariatric surgery is effective for early T2DM remission, but relapse is common by 5 years, particularly in older patients with longer diabetes duration and preoperative medication use.
Introduction: Bariatric surgery is an established treatment for obesity and has been shown to improve glycemic control and frequently induces remission of type 2 diabetes mellitus (T2DM). However, the long-term sustainability of remission remains uncertain, as relapse may occur over time. This study evaluated short- and long-term remission rates and identified factors associated with remission durability and relapse. Methods: A retrospective cohort study was conducted which included 186 patients with obesity and Type2 diabetes who underwent sleeve gastrectomy (SG) or Roux-en-Y gastric bypass (RYGB) between January 2009 and December 2020 at University Hospital Ayr. Diabetes remission was defined as HbA1c < 6.0% without anti-diabetic medication use, assessed at 2 years (short-term) and 5 years (long-term). Multivariable logistic and Cox regression models were used to identify factors associated with remission and relapse. Results: Two- and five-years post-surgery remission rates were 57.5% and 36.4%, respectively. Shorter duration of diabetes (OR 0.86, 95 % CI 0.76 - 0.96; p=0.009), lower preoperative HbA1c (OR 0.61, 95% CI 0.43 – 0.87; p=0.005) and not using anti-diabetic medications before surgery (p<0.05) were all associated with a higher likelihood of diabetes remission at 2 years. Of 107 patients who achieved remission at 2 years, 33.4% experienced diabetes relapse by 5 years. Age (HR 1.06; 95% CI 1.01 – 1.12; p<0.015) and use of anti-diabetic medications (p<0.05) were identified as significant factors associated with diabetes relapse. Conclusion: Bariatric surgery is effective in achieving early remission of T2DM; however, one-third of patients experience relapse within five years. A more favourable preoperative metabolic profile and younger age play a crucial role in remission durability. These findings highlight the importance of long-term follow-up and individualised patient counselling on expected diabetes outcomes after bariatric surgery.
Leyaro et al. (Wed,) conducted a cohort in Obesity and Type 2 diabetes (n=186). Bariatric surgery (sleeve gastrectomy or Roux-en-Y gastric bypass) was evaluated on Diabetes remission (HbA1c < 6.0% without anti-diabetic medication use) at 2 and 5 years. Bariatric surgery achieved type 2 diabetes remission in 57.5% of patients at 2 years and 36.4% at 5 years, with 33.4% of those in remission at 2 years experiencing relapse by 5 years.
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