Transcatheter Aortic-Valve Replacement with a Balloon-Expandable Valve in Low-Risk Patients.
Publication/Presentation Date
5-2-2019
Abstract
BACKGROUND: Among patients with aortic stenosis who are at intermediate or high risk for death with surgery, major outcomes are similar with transcatheter aortic-valve replacement (TAVR) and surgical aortic-valve replacement. There is insufficient evidence regarding the comparison of the two procedures in patients who are at low risk.
METHODS: We randomly assigned patients with severe aortic stenosis and low surgical risk to undergo either TAVR with transfemoral placement of a balloon-expandable valve or surgery. The primary end point was a composite of death, stroke, or rehospitalization at 1 year. Both noninferiority testing (with a prespecified margin of 6 percentage points) and superiority testing were performed in the as-treated population.
RESULTS: At 71 centers, 1000 patients underwent randomization. The mean age of the patients was 73 years, and the mean Society of Thoracic Surgeons risk score was 1.9% (with scores ranging from 0 to 100% and higher scores indicating a greater risk of death within 30 days after the procedure). The Kaplan-Meier estimate of the rate of the primary composite end point at 1 year was significantly lower in the TAVR group than in the surgery group (8.5% vs. 15.1%; absolute difference, -6.6 percentage points; 95% confidence interval [CI], -10.8 to -2.5; P
CONCLUSIONS: Among patients with severe aortic stenosis who were at low surgical risk, the rate of the composite of death, stroke, or rehospitalization at 1 year was significantly lower with TAVR than with surgery. (Funded by Edwards Lifesciences; PARTNER 3 ClinicalTrials.gov number, NCT02675114.).
Volume
380
Issue
18
First Page
1695
Last Page
1705
ISSN
1533-4406
Published In/Presented At
Mack, M. J., Leon, M. B., Thourani, V. H., Makkar, R., Kodali, S. K., Russo, M., Kapadia, S. R., Malaisrie, S. C., Cohen, D. J., Pibarot, P., Leipsic, J., Hahn, R. T., Blanke, P., Williams, M. R., McCabe, J. M., Brown, D. L., Babaliaros, V., Goldman, S., Szeto, W. Y., Genereux, P., … PARTNER 3 Investigators (2019). Transcatheter Aortic-Valve Replacement with a Balloon-Expandable Valve in Low-Risk Patients. The New England journal of medicine, 380(18), 1695–1705. https://doi.org/10.1056/NEJMoa1814052
Disciplines
Medicine and Health Sciences
PubMedID
30883058
Department(s)
Department of Surgery
Document Type
Article