Profoundly obese people are prone to an irregular heartbeat known as atrial fibrillation, but new research suggests that weight-loss surgery can improve the odds that a procedure to restore a normal heart rhythm will work. When atrial fibrillation, or a-fib, cannot be controlled by medications, a procedure called ablation can help. It targets the nerves in the heart where atrial fibrillation occurs. By electrically burning these areas, the heartbeat may return to normal. “Bariatric [weight-loss] surgery before ablation was associated with a threefold reduction in atrial fibrillation recurrence rates,” said researcher Dr. Eoin Donnellan, a fellow in cardiology at the Cleveland Clinic. Both obesity and a-fib are at epidemic proportions in the United States, and both can increase the risk of cardiovascular disease, the researchers said. As many as one in five cases of a-fib are related to obesity, and obesity has been identified as a risk factor for the heart condition, the researchers noted. Some patients who have weight-loss surgery may see their a-fib stop on its own or can have it controlled with medication, Donnellan said. But for many, ablation may be the best way to cure it. Although ablation has become a common procedure to treat a-fib, obese patients are more likely to have their abnormal heartbeat return after the procedure, he said. “While previously, morbidly obese patients with atrial fibrillation that… read on >







