Refining the results of a 2013 study, researchers have found that atrial fibrillation, or irregular heartbeat, is associated with only one type of heart attack - the more common of the two types.
14 hours ago
Stroke is a frequent and dreaded complication of atrial fibrillation. But predicting which of the estimated six million Americans with a-fib are at highest risk has long challenged physicians weighing stroke risk against ...
19 hours ago