Left Atrial Appendage Closure: A Current Overview Focused on Technical Aspects and Different Approaches

Area of Science:

• Cardiology
• Interventional Cardiology
• Medical Imaging

Background:

• The left atrial appendage is the primary source of emboli in non-valvular atrial fibrillation (NVAF).
• Left atrial appendage closure (LAAC) is a recognized treatment for high-risk NVAF patients.
• Individualized LAAC requires understanding diverse techniques and imaging.

Purpose of the Study:

• To review current left atrial appendage closure systems.
• To evaluate pre- and intra-procedural imaging methods for LAAC.
• To guide personalized LAAC strategies based on patient anatomy.

Main Methods:

• Literature review of LAAC techniques and imaging modalities.
• Analysis of percutaneous and surgical LAAC approaches.
• Evaluation of diagnostic imaging for procedural planning.

Main Results:

• Multiple LAAC devices are available, each with specific indications.
• Pre-procedural imaging is crucial for selecting the appropriate device and technique.
• Intra-procedural imaging ensures procedural success and safety.

Conclusions:

• LAAC is an effective stroke prevention strategy in NVAF.
• Choosing the right LAAC system and imaging approach is vital for optimal outcomes.
• Further research may refine LAAC techniques and imaging protocols.