Add like
Add dislike
Add to saved papers

Atrioventricular conduction in patients undergoing pacemaker implant following self-expandable transcatheter aortic valve replacement.

BACKGROUND: Heart block requiring a pacemaker is common after self-expandable transcatheter aortic valve replacement (SE-TAVR); however, conduction abnormalities may improve over time. Optimal device management in these patients is unknown.

OBJECTIVE: To evaluate the long-term, natural history of conduction disturbances in patients undergoing pacemaker implantation following SE-TAVR.

METHODS: All patients who underwent new cardiac implantable electronic device (CIED) implantation at Michigan Medicine following SE-TAVR placement between 01/01/2012 and 9/25/2017 were identified. Electrocardiogram and device interrogation data were examined during follow-up to identify patients with recovery of conduction. Logistic regression analysis was used to compare clinical and procedural variables to predict conduction recovery.

RESULTS: Following SE-TAVR, 17.5% of patients underwent device placement for new atrioventricular (AV) block. Among 40 patients with an average follow up time of 17.1±8.1 months, 20 (50%) patients had durable recovery of AV conduction. Among 20 patients without long term recovery, 4 (20%) had transient recovery. The time to transient conduction recovery was 2.2±0.2 months with repeat loss of conduction at 8.2±0.9 months. On multivariate analysis, larger aortic annular size (OR 0.53 [0.28 - 0.86]/mm, P = 0.02) predicted lack of conduction recovery.

CONCLUSIONS: Half of the patients undergoing CIED placement for heart block following SE-TAVR recovered AV conduction within several months and maintained this over an extended follow up period. Some patients demonstrated transient recovery of conduction before recurrence of conduction loss. Larger aortic annulus diameter was negatively associated with conduction recovery. This article is protected by copyright. All rights reserved.

Full text links

We have located links that may give you full text access.
Can't access the paper?
Try logging in through your university/institutional subscription. For a smoother one-click institutional access experience, please use our mobile app.

For the best experience, use the Read mobile app

Mobile app image

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app

All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.

By using this service, you agree to our terms of use and privacy policy.

Your Privacy Choices Toggle icon

You can now claim free CME credits for this literature searchClaim now

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app