Patient selection and methods of surgical left atrial appendage exclusion

Area of Science:

• Cardiology
• Cardiac Surgery
• Thromboembolism Prevention

Background:

• The left atrial appendage (LAA) is a primary source of thromboembolism in patients with atrial fibrillation (AF).
• LAA exclusion is a stroke prophylaxis strategy for high-risk AF patients unresponsive to or intolerant of medical management, or undergoing cardiac surgery.

Purpose of the Study:

• To discuss patient selection criteria for surgical LAA exclusion.
• To outline various surgical techniques for LAA exclusion.
• To inform non-cardiac surgeons about LAA exclusion methods.

Main Methods:

• Review of existing literature on surgical LAA exclusion techniques.
• Discussion of patient factors influencing technique selection (risk factors, surgical history, LAA anatomy).
• Description of surgical approaches: appendage excision, internal ligation, and external occlusion.

Main Results:

• Multiple surgical techniques for LAA exclusion are available.
• Technique choice is individualized based on patient characteristics.
• Surgical exclusion provides an alternative to percutaneous methods for stroke prophylaxis.

Conclusions:

• Surgical LAA exclusion is a viable option for stroke risk reduction in select AF patients.
• Understanding patient selection and surgical methods is crucial for effective LAA exclusion.
• This review provides guidance for medical practitioners on surgical LAA exclusion.