Self-expanding Transcatheter vs Surgical Aortic Valve Replacement in Intermediate-Risk Patients: 5-Year Outcomes of the SURTAVI Randomized Clinical Trial

Nicolas M. Van Mieghem, G. Michael Deeb, Lars Sondergaard, Eberhard Grube, Stephan Windecker, Hemal Gada, Mubashir Mumtaz, Peter S. Olsen, John C. Heiser, William Merhi, Neal S. Kleiman, Stanley J. Chetcuti, Thomas G. Gleason, Joon Sup Lee, Wen Cheng, Raj R. Makkar, Juan Crestanello, Barry George, Isaac George, Susheel KodaliSteven J. Yakubov, Patrick W. Serruys, Rüdiger Lange, Nicolo Piazza, Mathew R. Williams, Jae K. Oh, David H. Adams, Shuzhen Li, Michael J. Reardon

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Importance: In patients with severe aortic valve stenosis at intermediate surgical risk, transcatheter aortic valve replacement (TAVR) with a self-expanding supra-Annular valve was noninferior to surgery for all-cause mortality or disabling stroke at 2 years. Comparisons of longer-Term clinical and hemodynamic outcomes in these patients are limited. Objective: To report prespecified secondary 5-year outcomes from the Symptomatic Aortic Stenosis in Intermediate Risk Subjects Who Need Aortic Valve Replacement (SURTAVI) randomized clinical trial. Design, Setting, and Participants: SURTAVI is a prospective randomized, unblinded clinical trial. Randomization was stratified by investigational site and need for revascularization determined by the local heart teams. Patients with severe aortic valve stenosis deemed to be at intermediate risk of 30-day surgical mortality were enrolled at 87 centers from June 19, 2012, to June 30, 2016, in Europe and North America. Analysis took place between August and October 2021. Intervention: Patients were randomized to TAVR with a self-expanding, supra-Annular transcatheter or a surgical bioprosthesis. Main Outcomes and Measures: The prespecified secondary end points of death or disabling stroke and other adverse events and hemodynamic findings at 5 years. An independent clinical event committee adjudicated all serious adverse events and an independent echocardiographic core laboratory evaluated all echocardiograms at 5 years. Results: A total of 1660 individuals underwent an attempted TAVR (n = 864) or surgical (n = 796) procedure. The mean (SD) age was 79.8 (6.2) years, 724 (43.6%) were female, and the mean (SD) Society of Thoracic Surgery Predicted Risk of Mortality score was 4.5% (1.6%). At 5 years, the rates of death or disabling stroke were similar (TAVR, 31.3% vs surgery, 30.8%; hazard ratio, 1.02 [95% CI, 0.85-1.22]; P =.85). Transprosthetic gradients remained lower (mean [SD], 8.6 [5.5] mm Hg vs 11.2 [6.0] mm Hg; P <.001) and aortic valve areas were higher (mean [SD], 2.2 [0.7] cm2vs 1.8 [0.6] cm2; P <.001) with TAVR vs surgery. More patients had moderate/severe paravalvular leak with TAVR than surgery (11 [3.0%] vs 2 [0.7%]; risk difference, 2.37% [95% CI, 0.17%-4.85%]; P =.05). New pacemaker implantation rates were higher for TAVR than surgery at 5 years (289 [39.1%] vs 94 [15.1%]; hazard ratio, 3.30 [95% CI, 2.61-4.17]; log-rank P <.001), as were valve reintervention rates (27 [3.5%] vs 11 [1.9%]; hazard ratio, 2.21 [95% CI, 1.10-4.45]; log-rank P =.02), although between 2 and 5 years only 6 patients who underwent TAVR and 7 who underwent surgery required a reintervention. Conclusions and Relevance: Among intermediate-risk patients with symptomatic severe aortic stenosis, major clinical outcomes at 5 years were similar for TAVR and surgery. TAVR was associated with superior hemodynamic valve performance but also with more paravalvular leak and valve reinterventions.

Original languageEnglish (US)
Pages (from-to)1000-1008
Number of pages9
JournalJAMA Cardiology
Volume7
Issue number10
DOIs
StatePublished - Oct 2022

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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