The Left Atrial Appendage, Including LAA Occlusion Devices Line Watchman, Amulet, and Lariat

Area of Science:

• Cardiology
• Vascular Surgery
• Medical Devices

Background:

• Atrial fibrillation (AF) is a common arrhythmia with increasing prevalence due to aging populations.
• Stroke is a significant cause of mortality and morbidity in AF patients.
• Anticoagulation therapy for stroke prevention in AF carries bleeding risks, necessitating alternative strategies.

Purpose of the Study:

• To describe current percutaneous approaches for left atrial appendage exclusion in the United States.
• To highlight the role of transesophageal echocardiography in guiding these procedures.

Main Methods:

• Percutaneous implantation of devices to exclude the left atrial appendage.
• Guidance of procedures using transesophageal echocardiography (TEE).

Main Results:

• Left atrial appendage exclusion techniques provide an alternative to anticoagulation for stroke prevention.
• Percutaneous methods are being actively performed in the United States.
• TEE is crucial for procedural success and safety.

Conclusions:

• Percutaneous left atrial appendage exclusion is a viable strategy for stroke risk reduction in AF patients.
• These minimally invasive techniques offer an alternative to long-term anticoagulation.
• Transesophageal echocardiography is essential for the effective guidance of these interventional procedures.