The left atrial appendage is the most common site for cardiac thrombus. It is anatomically attached to the left inferior portion of the left atrium and consists of muscular trabeculae. The left ...

Atrial flutter is similar to atrial fibrillation in that the rhythm originates in the atrium and causes a narrow complex tachycardia, which carries thromboembolic risk. Typical atrial flutter ...

The WATCHMAN device is a tiny implant that closes off an area of the heart called the left atrial appendage to keep harmful blood clots from entering the blood stream and potentially causing a stroke.