This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

A liquid injected into the heart that sets like a gel could one day prevent strokes caused by atrial fibrillation, animal tests suggest.

Certain heart arrhythmias, particularly atrial fibrillation, can disrupt blood flow and lead to the formation of blood clots that travel to the brain, increasing the risk of stroke. While arrhythmias ...

Irregular heart rhythms, such as atrial fibrillation and atrial flutter, affect millions of Americans and can increase the risk of serious complications if left untreated. Understanding the warning ...