Cardiac computed tomography post-transcatheter aortic valve replacement

Area of Science:

• Cardiovascular Imaging
• Interventional Cardiology
• Bioprosthetic Heart Valves

Background:

• Transcatheter aortic valve replacement (TAVR) is now common for aortic stenosis in low-to-intermediate-risk patients.
• Long-term TAVR outcomes, bioprosthesis maintenance, and complications are critical considerations.
• Proximity of TAVR to coronary ostia complicates subsequent coronary angiography.

Purpose of the Study:

• To evaluate the role of cardiac CT angiography (CCTA) in the post-TAVR period.
• To explore CCTA's utility in managing complications and planning future interventions.
• To assess CCTA's potential for long-term TAVR monitoring and lifelong management.

Main Methods:

• Review of current literature and emerging evidence on post-TAVR CCTA utilization.
• Analysis of CCTA's application in evaluating structural valve degeneration and leaflet thrombosis.
• Assessment of CCTA's role in pre-procedural planning for coronary angiography and valve-in-valve interventions.

Main Results:

• Post-TAVR CCTA is increasingly used to investigate valve degeneration and complications like leaflet thrombosis.
• CCTA is crucial for risk stratification and planning complex procedures such as repeat valve interventions.
• The technique is vital for managing potential coronary obstruction during valve-in-valve procedures.

Conclusions:

• Cardiac CT angiography is becoming essential for post-TAVR assessment and management.
• Emerging evidence supports incorporating post-TAVR CCTA into long-term monitoring protocols.
• CCTA plays a key role in lifelong planning for patients with TAVR.