Two studies led by researchers at the Broad Institute of MIT and Harvard and Mass General Brigham have greatly expanded the number of known genetic variants that boost the risk for atrial ...

Figure 1. Defining atrial fibrillation (AF) drivers. AF drivers are defined as localized sources of fast, repetitive activity from which activation propagates and breaks down into fibrillatory ...

A septal defect allows blood to flow back and forth between the right and left sides of the heart. “When there’s a hole in the heart, either at the atrial or ventricular level, the heart just can’t ...

Stroke is a serious risk for patients with atrial fibrillation, which is caused by a disruption of electrical signals in the muscles of the upper chambers of the heart. When the heart pumps in an ...

Left atrial enlargement (LAE) is when the left side of the heart enlarges or swells, leading to breathlessness, fatigue, and other symptoms. It often affects people with high blood pressure and ...

In this issue of Circulation: Arrhythmia and Electro physiology, Rajagopalan et al 10 add to the growing evidence-base on this issue by performing a randomized, double-blind, placebo-controlled trial ...