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Updated: Oct 7, 2025
12:17
Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
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Rhythm disturbances following rapid-deployment aortic valve replacement
Amalan Thuraisingam1, Andrew E Newcomb1,2
1Department of Cardiothoracic Surgery, St Vincent's Hospital Melbourne, Fitzroy, Australia.
JTCVS Techniques
|January 5, 2022
Summary
Rapid-deployment aortic valve replacement can cause conduction disturbances. While new left bundle branch block is common post-procedure, persistent issues and pacemaker needs are comparable to other devices.
Area of Science:
- Cardiovascular Surgery
- Cardiac Electrophysiology
Background:
- Postoperative conduction disturbances after rapid-deployment aortic valve replacement (RDAVR) have been reported.
- Assessing electrocardiogram (ECG) changes is crucial for patient management.
Purpose of the Study:
- To evaluate ECG changes in patients undergoing RDAVR.
- To review existing literature on conduction abnormalities following RDAVR.
Main Methods:
- Retrospective case series of 97 patients who underwent RDAVR.
- ECG data analyzed at baseline, 5 days, and 6 weeks postoperatively.
- Pacemaker status recorded.
Main Results:
- 18.6% developed new left bundle branch block (LBBB) at 5 days; 4.1% had persistent LBBB at 6 weeks.
- No significant changes in atrial fibrillation, first-degree heart block, or right bundle branch block.
- 14.4% required permanent pacemaker implantation.
Conclusions:
- RDAVR is associated with rhythm disturbances and conduction abnormalities.
- These findings are comparable to other RDAVR bioprostheses.
- Sub-annular stent frame and implantation technique may contribute to abnormalities.
Keywords:
AV, atrioventricularAVR, aortic valve replacementCABG, coronary artery bypass graftingCHB, complete heart blockCPB, cardiopulmonary bypassECG, electrocardiogramEIV, Edwards Intuity EliteEdwards Intuity Elite valveHB, heart blockLBBB, left bundle branch blockPPM, permanent pacemakerRBBB, right bundle branch blockRDAVRRDAVR, rapid deployment of aortic valve replacementSR, sinus rhythmSVHM, St Vincent's Hospital MelbourneTAVI, transcatheter aortic valve implantationaortic valve replacementelectrocardiogram
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