Most blood clots that form in the heart occur in a pouch of the left atrium called the appendage. This pouch can often be large and have multiple lobes which can permit blood pooling and clot formation.
Left atrial appendage (LAA) closure in a minimally invasive procedure that involves closing off your LAA. For this nonsurgical procedure, a self-expanding plug is placed at the opening of the left atrial appendage to close it off from the rest of the heart. Once the plug is fully sealed, no blood can enter or leave the appendage. This reduces blood clot formation and stroke risk.