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Kapadia, Samir R; Tuzcu, E Murat; Makkar, Raj R; Svensson, Lars G; Agarwal, Shikhar; Kodali, Susheel; Fontana, Gregory P; Webb, John G; Mack, Michael; Thourani, Vinod H; Babaliaros, Vasilis C; Herrmann, Howard C; Szeto, Wilson; Pichard, Augusto D; Williams, Mathew R; Anderson, William N; Akin, Jodi J; Miller, D Craig; Smith, Craig R; Leon, Martin B
Circulation (New York, N.Y.), 2014-October-21, Volume: 130, Issue: 17Journal Article
The long-term outcomes of transcatheter aortic valve replacement (TAVR) in inoperable patients with severe aortic stenosis remain unknown. In the Placement of Aortic Transcatheter Valves (PARTNER) study, 358 patients were randomly assigned to TAVR or standard therapy. We report the 3-year outcomes on these patients, and the pooled outcomes for all randomly assigned inoperable patients (n=449) in PARTNER, as well, including the randomized portion of the continued access study (n=91). The 3-year mortality rate in the TAVR and standard therapy groups was 54.1% and 80.9%, respectively (P<0.001; hazard ratio, 0.53; 95% confidence interval, 0.41-0.68; P<0.001). In survivors, there was significant improvement in New York Heart Association functional class sustained at 3 years. The cumulative incidence of strokes at 3-year follow-up was 15.7% in TAVR patients versus 5.5% in patients undergoing standard therapy (hazard ratio, 2.81; 95% confidence interval, 1.26-6.26; P=0.012); however, the composite of death or strokes was significantly lower after TAVR versus standard therapy (57.4% versus 80.9%, P<0.001; hazard ratio, 0.60; 95% confidence interval, 0.46-0.77; P<0.001). Echocardiography showed a sustained increase in aortic valve area and decrease in transvalvular gradient after TAVR. Analysis of the 449 pooled randomly assigned patients (TAVR, n=220; standard therapy, n=229) demonstrated significant improvement in all-cause mortality and functional status during early and 3-year follow-up. The results of the pooled cohort were similar to the results obtained from the pivotal PARTNER trial. TAVR resulted in better survival and functional status in inoperable patients with severe aortic stenosis with durable hemodynamic benefit on long-term follow-up. However, high residual mortality, even in successfully treated TAVR patients, highlights the need for more strategic patient selection. http://www.clinicaltrials.gov. Unique identifier: NCT00530894.
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