How to predict conduction disturbances after transcatheter aortic valve replacement.

Area of Science:

• Cardiology
• Interventional Cardiology
• Cardiac Electrophysiology

Background:

• Transcatheter aortic valve replacement (TAVI) is a primary treatment for severe aortic stenosis in high-risk patients.
• Despite technological advancements, post-procedural conduction disturbances, including left bundle branch block and high-degree atrioventricular block, persist at high rates.
• Managing these conduction disturbances and reducing permanent pacemaker implantation rates remain significant challenges.

Purpose of the Study:

• To review the incidence of conduction disturbances after TAVI.
• To identify key predictors of post-TAVI conduction disturbances.
• To discuss the clinical implications and management strategies for these complications.

Main Methods:

• Review of current literature on TAVI and post-procedural conduction disturbances.
• Analysis of procedural, electrocardiographic, and clinical factors associated with conduction disturbances.
• Examination of technological advancements in TAVI devices.

Main Results:

• Conduction disturbances, particularly left bundle branch block, are frequent after TAVI.
• Predictors include procedural aspects, baseline ECG findings, and patient characteristics.
• Technological refinements have not eliminated the problem, with high rates of permanent pacemaker implantation still observed.

Conclusions:

• Post-TAVI conduction disturbances are a significant and ongoing challenge.
• Further research into predictive factors and novel management strategies is crucial.
• Reducing the need for permanent pacemaker implantation after TAVI requires a multi-faceted approach.