New-onset left bundle branch block remains the most common complication after transcatheter aortic valve implantation for severe aortic stenosis.
New-onset LBBB remains the most frequent complication following TAVI, necessitating ongoing attention to its causes, outcomes, and management.
Transcatheter aortic valve implantation (TAVI) has become the preferred treatment for patients with symptomatic severe aortic valve stenosis. Newer-generation devices, increased operator experience, and improved patient selection have contributed to a reduction in complication rates. However, the occurrence of new-onset left bundle branch block (LBBB) after TAVI remains high, and currently it is the most common complication associated with the procedure. This review discusses the current understanding of new-onset LBBB, including its causes, incidence, clinical outcomes, and management strategies.
“It's long been recognized that conduction disturbances, especially heart block and new left bundle branch block, are the most frequent complication of TAVR, and increasingly there's been evidence that left bundle branch block, in particular, is associated with adverse late clinical outcomes. However, most of that evidence comes from much smaller data sets. The TVT Registry is unique in that it gives us a much larger real-world sample where we can investigate that.”
Mayol et al. (Wed,) conducted a review in Severe aortic valve stenosis. Transcatheter aortic valve implantation (TAVI) was evaluated. New-onset left bundle branch block remains the most common complication after transcatheter aortic valve implantation for severe aortic stenosis.