Site-Level Variation and Predictors of Permanent Pacemaker Implantation Following TAVR in the Evolut Low-Risk Trial

Hemal Gada, Amit N. Vora, Gilbert H.L. Tang, Mubashir Mumtaz, John K. Forrest, Roger J. Laham, Steven J. Yakubov, G. Michael Deeb, Chad Rammohan, Jian Huang, Michael J. Reardon

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We evaluated predictors of permanent pacemaker implantation (PPI) following self-expanding transcatheter aortic valve replacement (TAVR), examined site-to-site variability of PPI rates, and explored the relationship of implantation methods on the need for PPI. Despite the benefits of TAVR compared to surgical aortic valve replacement, increased PPI remains a limitation. A total of 699 patients without baseline PPI were included in the study. Clinical, echocardiographic, and procedural characteristics were compared in patient with and without new PPI. Clinical outcomes were assessed at 30 days and 1 year. Funnel plots were constructed to display site-to- site variability and identify outliers in PPI. Clinical outcomes were similar in patients with and without PPI. Predictors of a new PPI within 7 days included a baseline right bundle branch block (p < 0.001) and not using general anesthesia (p = 0.003). There was substantial site to site variability in the rate of PPI. Patients at sites with a lower PPI rate had shallower implantation depth at the non-coronary (p < 0.001) and the left coronary sinus (p < 0.001), and fewer patients with an implantation depth > 5 mm below the annulus (p = 0.004). In low-risk patients undergoing TAVR with Evolut valves, baseline conduction disorders and implant depth were important predictors of PPI. Implantation method may have contributed to this variability in PPI rates across clinical sites.

Original languageEnglish (US)
Pages (from-to)48-54
Number of pages7
JournalCardiovascular Revascularization Medicine
StatePublished - Feb 2023


  • Cusp overlap
  • Permanent pacemaker implantation
  • Self-expanding
  • Supra-annular
  • Transcatheter aortic valve implantation
  • Transcatheter aortic valve replacement
  • Pacemaker, Artificial/statistics & numerical data
  • Humans
  • Heart Valve Prosthesis
  • Aortic Valve Stenosis/surgery
  • Transcatheter Aortic Valve Replacement/adverse effects
  • Treatment Outcome

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


Dive into the research topics of 'Site-Level Variation and Predictors of Permanent Pacemaker Implantation Following TAVR in the Evolut Low-Risk Trial'. Together they form a unique fingerprint.

Cite this