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Both obesity and hypertension were independently significant risk factors for left atrial (LA) enlargement–a risk factor for atrial fibrillation–in >1000 persons in the community who were followed with echocardiography over a decade, but obesity was the most predictive of the two, report investigators in the November 17, 2009 issue of the Journal of the American College of Cardiology [1]. Obesity was also related to the magnitude of change in LA volume, which was especially large in persons who were both hypertensive and obese.
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