Key result
Conduction abnormalities after transcatheter aortic valve replacement are closely tied to cardiac anatomy, baseline conduction abnormalities, and procedural variables.
Why the study?
Conduction abnormalities account for a high percentage of post-TAVR complications, and management of new high-grade AV block and new LBBB varies in the absence of consensus guidelines.
What are the incidence, etiology, outcomes, and management of conduction abnormalities after transcatheter aortic valve replacement?
What are the incidence, etiology, outcomes, and management of conduction abnormalities after transcatheter aortic valve replacement?
This review highlights the multifactorial etiology of post-TAVR conduction abnormalities and the current lack of consensus guidelines for their management.
Identifies anatomical and procedural predictors of post-TAVR conduction abnormalities; leaves open optimal risk-stratification and prevention strategies.
INTRODUCTION: Conduction abnormalities after transcatheter aortic valve replacement (TAVR) account for a high percentage of post-TAVR complications. Areas covered: The etiology of conduction abnormalities is closely tied to cardiac anatomy (length of membranous septum, degree of calcification, location of left bundle within the membranous septum), baseline conduction abnormalities (preprocedure right bundle branch block), and procedural variables (type of valve, depth of implant). Management of new high-grade AV block and new left bundle branch block varies by institution in the absence of consensus guidelines. Expert opinion: Authors describe the incidence, etiology, outcomes, and management of conduction abnormalities related to aortic stenosis and TAVR.
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Shreenivas et al. (2019) conducted a review in Conduction abnormalities after transcatheter aortic valve replacement. Transcatheter aortic valve replacement (TAVR) was evaluated. Conduction abnormalities after transcatheter aortic valve replacement are closely tied to cardiac anatomy, baseline conduction abnormalities, and procedural variables.
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