Weight loss may be ineffective in controlling atrial fibrillation

Researchers examined the effects of weight loss in patients with overweight and persistent atrial fibrillation.

In a study published in JAMA, the researchers randomly assigned more than 100 patients aged 60 to 85 years with overweight and persistent atrial fibrillation who were undergoing cardioversion to follow a low-calorie dietary regimen and behavioral support group or receive standard care.

After a follow-up of eight months, the researchers found that there were no statistically significant differences in atrial fibrillation severity, atrial fibrillation burden, physical performance, cardiac imaging parameters, blood pressure, lipid profile or repeated cardioversion or atrial fibrillation ablation between the weight loss and standard care groups. However, those in the weight loss group had about 7 kilograms lower body weight, achieving about three times as much weight loss compared with those in the standard care group.

Read more: JAMA

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