Bariatric surgery lowers risk of heart failure and AF in patients with diabetes and obesity: JAHA

Sweden: Bariatric surgery may reduce the risk of atrial fibrillation (AF) and heart failure in adults with type 2 diabetes (T2D) and obesity, finds a recent study in the Journal of the American Heart Association. The results suggest that bariatric surgery may be a beneficial treatment modality in patients with T2D and obesity.

Diabetes and obesity are strongly associated with atrial fibrillation and heart failure. The benefits of bariatric surgery on cardiovascular outcomes are known in people with or without diabetes mellitus. Treatment of obesity through surgery might also reduce HF and AF incidence in people with T2D and obesity. Gudrún Höskuldsdóttir, Department of Molecular and Clinical Medicine, University of Gothenburg, Sweden, and colleagues aimed to compare individuals with T2DM and obesity who underwent Roux‐en‐Y gastric bypass surgery with matched individuals not treated with surgery in this register‐based nationwide cohort study.

The main outcome measures were hospitalized for AF and/or HF and mortality in patients with preexisting HF, The researchers identified 5321 individuals with T2D and obesity who had undergone Roux‐en‐Y gastric bypass surgery between January 2007 and December 2013 and 5321 matched controls. Included people were aged 18 to 65 years and had a body mass index >27.5 kg/m2. The follow‐up time for hospitalization was until the end of 2015 (mean 4.5 years) and the end of 2016 for death.