Clinical and multi-modality imaging approach in the selection of patients for left atrial appendage closure

Area of Science:

• Cardiology
• Medical Imaging
• Interventional Cardiology

Background:

• Atrial fibrillation (AF) increases embolic stroke risk, with thrombi often forming in the left atrial appendage (LAA).
• Left atrial appendage occlusion (LAAO) offers an alternative stroke prevention method for non-valvular AF patients who cannot tolerate long-term anticoagulation.
• The complex and variable anatomy of the LAA presents procedural challenges for LAAO.

Purpose of the Study:

• To review the clinical characteristics of patients undergoing LAAO.
• To highlight the role of multimodality imaging in LAAO patient selection.
• To discuss the application of imaging in procedural management and follow-up of LAAO.

Main Methods:

• Literature review focusing on clinical studies and imaging modalities relevant to LAAO.
• Analysis of patient cohorts undergoing LAAO procedures.
• Evaluation of imaging techniques (e.g., echocardiography, CT, MRI) in LAAO.

Main Results:

• Identification of key patient profiles suitable for LAAO.
• Demonstration of imaging's utility in assessing LAA anatomy and guiding device selection.
• Discussion of imaging's role in monitoring procedural success and detecting complications.

Conclusions:

• LAAO is a viable stroke prevention strategy for select non-valvular AF patients.
• Multimodality imaging is crucial for optimizing patient selection, procedural success, and post-procedural management in LAAO.
• Further research is needed to clarify optimal post-procedural antithrombotic strategies.