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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
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Conduction Disorders after Surgical Aortic Valve Replacement Using a Rapid Deployment Aortic Valve Prosthesis:
Christian Mogilansky1, Parwis Massoudy1, Markus Czesla1
1Department of Cardiac Surgery, Klinikum Passau, 94032 Passau, Germany.
Journal of Clinical Medicine
|March 11, 2023
Summary
New conduction disorders after Intuity™ Elite valve replacement often resolve by medium-term follow-up. While left bundle branch block (LBBB) incidence decreases, it remains elevated, with stable atrioventricular block III rates.
Area of Science:
- Cardiovascular Surgery
- Cardiac Electrophysiology
Background:
- Rapid deployment aortic valve prostheses, like the Intuity™ Elite, have shown increased postoperative conduction disorders, particularly LBBB.
- Previous reports indicated a higher incidence of these disorders compared to conventional aortic valve replacement.
Purpose of the Study:
- To assess the intermediate-term behavior and persistence of new postoperative conduction disorders following Intuity™ Elite aortic valve implantation.
- To evaluate the resolution rates of left bundle branch block (LBBB) and right bundle branch block (RBBB) at follow-up.
Main Methods:
- Follow-up of 87 patients who received the Intuity™ Elite prosthesis and had conduction disorders at discharge.
- ECG recordings at least 1 year post-surgery to assess the persistence of new conduction disorders.
Main Results:
- At discharge, 48.1% of patients developed new conduction disorders, with LBBB in 36.5%.
- By medium-term follow-up (526 days), 44% of new LBBB and 50% of new RBBB resolved.
- No new atrioventricular block III (AVB III) occurred; one pacemaker was implanted for AVB II Mobitz type II.
Conclusions:
- New conduction disorders, especially LBBB, significantly decrease by medium-term follow-up after Intuity™ Elite implantation but remain relatively high.
- The incidence of postoperative atrioventricular block III (AVB III) remained stable.
Keywords:
conduction disordersleft bundle branch block (LBBB)rapid deployment aortic valve prosthesisMore Related Videos
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