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Clinical Trial
. 2023 Feb:47:48-54.
doi: 10.1016/j.carrev.2022.10.004. Epub 2022 Oct 14.

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

Hemal Gada  1 , Amit N Vora  2 , Gilbert H L Tang  3 , Mubashir Mumtaz  2 , John K Forrest  4 , Roger J Laham  5 , Steven J Yakubov  6 , G Michael Deeb  7 , Chad Rammohan  8 , Jian Huang  9 , Michael J Reardon  10
Affiliations
Clinical Trial

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

Hemal Gada et al. Cardiovasc Revasc Med. 2023 Feb.

Abstract

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.

Keywords: Cusp overlap; Permanent pacemaker implantation; Self-expanding; Supra-annular; Transcatheter aortic valve implantation; Transcatheter aortic valve replacement.

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Conflict of interest statement

Declaration of competing interest Hemal Gada reports financial support, administrative support, statistical analysis, and writing assistance were provided by Medtronic. Hemal Gada reports a relationship with Abbott Cardiovascular Structural Heart Division that includes: consulting or advisory. Hemal Gada reports a relationship with C R Bard Inc. that includes: consulting or advisory. Hemal Gada reports a relationship with Boston Scientific Corp that includes: consulting or advisory. Hemal Gada reports a relationship with Edwards Lifesciences Corp that includes: consulting or advisory. Hemal Gada reports a relationship with Medtronic that includes: consulting or advisory. Amit Vora reports a relationship with Medtronic Inc. that includes: consulting or advisory. Gilbert Tang reports a relationship with Abbott Cardiovascular Structural Heart Division that includes: consulting or advisory and speaking and lecture fees. Gilbert Tang reports a relationship with WL Gore and Associates that includes: consulting or advisory. Mubashir Mumtaz reports a relationship with Edwards Lifesciences Corp that includes: consulting or advisory and funding grants. Mubashir Mumtaz reports a relationship with Japanese Organization for Medical Device Development that includes: consulting or advisory and funding grants. Mubashir Mumtaz reports a relationship with Medtronic that includes: consulting or advisory and funding grants. Mubashir Mumtaz reports a relationship with Z-Medical that includes: consulting or advisory and funding grants. John Forrest reports a relationship with Edwards Lifesciences Corp that includes: consulting or advisory, funding grants, and speaking and lecture fees. John Forrest reports a relationship with Medtronic that includes: consulting or advisory, funding grants, and speaking and lecture fees. Roger Laham reports a relationship with Medtronic that includes: funding grants. Roger Laham reports a relationship with Abbott Vascular Redwood City that includes: funding grants. Roger Laham reports a relationship with Boston Scientific Corp that includes: funding grants. Jian Huang reports a relationship with Medtronic that includes: employment. Michael Reardon reports a relationship with Medtronic that includes: consulting or advisory.

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