New-Onset Left Bundle Branch Block After TAVI: An Updated Review

Area of Science:

• Cardiology
• Interventional Cardiology
• Cardiac Electrophysiology

Background:

• Transcatheter aortic valve implantation (TAVI) is a primary treatment for severe symptomatic aortic valve stenosis.
• Advancements in TAVI technology and patient selection have lowered complication rates.
• New-onset left bundle branch block (LBBB) persists as the most common complication post-TAVI.

Purpose of the Study:

• To review the current knowledge on new-onset left bundle branch block (LBBB) following TAVI.
• To discuss the etiological factors, incidence, and clinical implications of post-TAVI LBBB.
• To outline current management strategies for LBBB after TAVI.

Main Methods:

• Literature review of studies on TAVI and new-onset LBBB.
• Analysis of data on causes, incidence, and outcomes of LBBB post-TAVI.
• Synthesis of current clinical guidelines and management approaches.

Main Results:

• New-onset LBBB is the most frequent complication after TAVI.
• Understanding of LBBB causes, incidence, and clinical outcomes is evolving.
• Management strategies for post-TAVI LBBB are being refined.

Conclusions:

• Despite TAVI advancements, new-onset LBBB remains a significant concern.
• Further research is needed to fully elucidate the impact and management of post-TAVI LBBB.
• Optimizing patient selection and procedural techniques may mitigate LBBB occurrence.