Sex-related differences in outcomes after transcatheter or surgical aortic valve replacement in patients with severe aortic stenosis: Insights from the PARTNER Trial (Placement of Aortic Transcatheter Valve).

MedStar author(s):
Citation: Journal of the American College of Cardiology. 63(15):1522-8, 2014 Apr 22.PMID: 24561149Institution: MedStar Heart & Vascular InstituteForm of publication: Journal ArticleMedline article type(s): Journal Article | Multicenter Study | Randomized Controlled Trial | Research Support, Non-U.S. Gov'tSubject headings: *Aortic Valve Stenosis/su [Surgery] | *Cardiac Catheterization/mt [Methods] | *Heart Valve Prosthesis Implantation/mt [Methods] | *Postoperative Complications/ep [Epidemiology] | Aged, 80 and over | Aortic Valve Stenosis/di [Diagnosis] | Aortic Valve Stenosis/ep [Epidemiology] | Echocardiography | Female | Follow-Up Studies | Hospital Mortality/td [Trends] | Humans | Incidence | Male | Retrospective Studies | Risk Factors | Severity of Illness Index | Sex Distribution | Sex Factors | Survival Rate/td [Trends] | Treatment Outcome | United States/ep [Epidemiology]Year: 2014Local holdings: Available online from MWHC library: 1995 - present, Available in print through MWHC library:1999-2007ISSN:
  • 0735-1097
Name of journal: Journal of the American College of CardiologyAbstract: BACKGROUND: The PARTNER (Placement of Aortic Transcatheter Valve) trial demonstrated similar 2-year survival with SAVR or TAVR for high-risk patients, but sex-specific outcomes are unknown.CONCLUSIONS: In this retrospective subanalysis of high-risk, symptomatic aortic stenosis patients in the PARTNER trial, female subjects had lower late mortality with TAVR versus SAVR. This was especially true among patients suitable for transfemoral access and suggests that TAVR may be preferred over surgery for high-risk female patients. A randomized, controlled trial conducted specifically in female patients is necessary to properly study differences in mortality between treatment modalities. (THE PARTNER TRIAL: Placement of AoRTic TraNscathetER Valve Trial; NCT00530894). Copyright 2014 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.METHODS: In all, 699 patients (300 female) were randomly assigned 1:1 to either SAVR or TAVR with a balloon expandable pericardial tissue valve. Baseline characteristics and 2-year outcomes of TAVR versus SAVR were compared among males and females.OBJECTIVES: This study sought to examine sex-specific differences in outcomes after surgical aortic valve replacement (SAVR) or transcatheter aortic valve replacement (TAVR) in high-risk patients with severe aortic stenosis.RESULTS: Baseline characteristics differed between the sexes. Despite higher Society of Thoracic Surgeons mortality risk scores (11.9 vs. 11.6; p = 0.05), female patients had lower prevalence of coronary artery disease (64.4% vs. 83.7%), prior coronary artery bypass graft surgery (19.8% vs. 61.2%), peripheral vascular disease (36.4% vs. 46.9%), diabetes mellitus (35.6% vs. 45.6%), and elevated creatinine (11.7% vs. 23.9%). Among female patients, procedural mortality trended lower with TAVR versus SAVR (6.8% vs. 13.1%; p = 0.07) and was maintained throughout follow-up (hazard ratio [HR]: 0.67; 95% confidence interval [CI]: 0.44 to 1.00; p = 0.049), driven by the transfemoral arm (HR: 0.55; 95% CI: 0.32 to 0.93; p = 0.02). Among male patients, although procedural mortality was lower with TAVR (6% vs. 12.1%; p = 0.03), there was no overall survival benefit (HR: 1.15; 95% CI: 0.82 to 1.61; p = 0.42).All authors: Cohen DJ, Douglas PS, Hahn RT, Humphries KH, Kirtane AJ, Kodali SK, Leon MB, Mack M, McAndrew TC, Nkomo VT, Svensson L, Thourani VH, Tuzcu EM, Weissman NJ, Williams MFiscal year: FY2014Digital Object Identifier: Date added to catalog: 2014-08-21
Holdings
Item type Current library Collection Call number Status Date due Barcode
Journal Article MedStar Authors Catalog Article 24561149 Available 24561149

Available online from MWHC library: 1995 - present, Available in print through MWHC library:1999-2007

BACKGROUND: The PARTNER (Placement of Aortic Transcatheter Valve) trial demonstrated similar 2-year survival with SAVR or TAVR for high-risk patients, but sex-specific outcomes are unknown.

CONCLUSIONS: In this retrospective subanalysis of high-risk, symptomatic aortic stenosis patients in the PARTNER trial, female subjects had lower late mortality with TAVR versus SAVR. This was especially true among patients suitable for transfemoral access and suggests that TAVR may be preferred over surgery for high-risk female patients. A randomized, controlled trial conducted specifically in female patients is necessary to properly study differences in mortality between treatment modalities. (THE PARTNER TRIAL: Placement of AoRTic TraNscathetER Valve Trial; NCT00530894). Copyright 2014 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

METHODS: In all, 699 patients (300 female) were randomly assigned 1:1 to either SAVR or TAVR with a balloon expandable pericardial tissue valve. Baseline characteristics and 2-year outcomes of TAVR versus SAVR were compared among males and females.

OBJECTIVES: This study sought to examine sex-specific differences in outcomes after surgical aortic valve replacement (SAVR) or transcatheter aortic valve replacement (TAVR) in high-risk patients with severe aortic stenosis.

RESULTS: Baseline characteristics differed between the sexes. Despite higher Society of Thoracic Surgeons mortality risk scores (11.9 vs. 11.6; p = 0.05), female patients had lower prevalence of coronary artery disease (64.4% vs. 83.7%), prior coronary artery bypass graft surgery (19.8% vs. 61.2%), peripheral vascular disease (36.4% vs. 46.9%), diabetes mellitus (35.6% vs. 45.6%), and elevated creatinine (11.7% vs. 23.9%). Among female patients, procedural mortality trended lower with TAVR versus SAVR (6.8% vs. 13.1%; p = 0.07) and was maintained throughout follow-up (hazard ratio [HR]: 0.67; 95% confidence interval [CI]: 0.44 to 1.00; p = 0.049), driven by the transfemoral arm (HR: 0.55; 95% CI: 0.32 to 0.93; p = 0.02). Among male patients, although procedural mortality was lower with TAVR (6% vs. 12.1%; p = 0.03), there was no overall survival benefit (HR: 1.15; 95% CI: 0.82 to 1.61; p = 0.42).

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