COMPARATIVE STUDY
JOURNAL ARTICLE
MULTICENTER STUDY
RANDOMIZED CONTROLLED TRIAL

Outcomes after transfemoral transcatheter aortic valve replacement: a comparison of the randomized PARTNER (Placement of AoRTic TraNscathetER Valves) trial with the NRCA (Nonrandomized Continued Access) registry

William F Fearon, Susheel Kodali, Darshan Doshi, Michael P Fischbein, Alan C Yeung, E Murat Tuzcu, Charanjit S Rihal, Vasilis Babaliaros, Alan Zajarias, Howard C Herrmann, David L Brown, Michael Mack, Paul S Teirstein, Brian K Whisenant, Raj Makkar, Samir Kapadia, Martin B Leon
JACC. Cardiovascular Interventions 2014, 7 (11): 1245-51
25459036

OBJECTIVES: This study sought to determine whether outcomes for transfemoral (TF) transcatheter aortic valve replacement (TAVR) differ between the randomized controlled trial (RCT) and the subsequent NRCA (Nonrandomized Continued Access) registry of the PARTNER (Placement of AoRTic TraNscathetER Valves) trial.

BACKGROUND: The PARTNER RCT demonstrated that TAVR with the Edwards Sapien valve (Edwards Lifesciences, Irvine, California) is noninferior to surgery in high-risk patients and superior to standard therapy for inoperable patients.

METHODS: The inclusion and exclusion criteria, data collection, monitoring, and core laboratories were the same for the RCT and NRCA registry. Baseline characteristics, procedural results, and 1-year outcomes were compared between patients undergoing TF-TAVR as part of the RCT and as part of the NRCA registry.

RESULTS: In the RCT, 415 patients underwent TF-TAVR, whereas in the NRCA, 1,023 patients did. At 30 days, death, cardiac death, stroke, and transient ischemic attacks were not different in the NRCA registry than in the RCT. Major vascular complications (8.0% vs. 15.7%, p < 0.0001) and major bleeding (6.8% vs. 15.3%, p < 0.0001) were significantly lower in the NRCA registry. At 1 year, death rates were significantly lower in the NRCA cohort (19.0% vs. 25.3%, p = 0.009) and cardiac death tended to be lower (8.4% vs. 11.1%, p = 0.12). Stroke or transient ischemic attack (6.2% vs. 8.7%, p = 0.10) and stroke alone (5.0% vs. 7.1%, p = 0.13) also tended to be lower.

CONCLUSIONS: The large NRCA registry demonstrates further improvement in procedural and longer-term outcomes after TF-TAVR when compared with the favorable results from the PARTNER RCT. (THE PARTNER TRIAL: Placement of AoRTic TraNscathetER Valve Trial; NCT00530894).

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