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Original Articles

The Impact of Donor-Recipient Sex Matching on Survival After Orthotopic Heart Transplantation

Analysis of 18 000 Transplants in the Modern Era

Eric S. Weiss, MD, MPH; Jeremiah G. Allen, MD; Nishant D. Patel, MD; Stuart D. Russell, MD; William A. Baumgartner, MD; Ashish S. Shah, MD and John V. Conte, MD

From the Division of Cardiac Surgery (E.S.W., J.G.A., N.D.P., W.A.B., A.S.S., J.V.C.), Department of Surgery, and the Division of Cardiology (S.D.R.), Department of Medicine, Johns Hopkins University Medical Institutions, Baltimore, Md.

Correspondence to John V. Conte, MD, Division of Cardiac Surgery, Department of Surgery, Blalock 618, The Johns Hopkins Hospital, 600 N Wolfe St, Baltimore, MD 21287. E-mail jconte{at}jhmi.edu

Received December 15, 2008; accepted June 19, 2009.

Introduction— Single-institution series have suggested that men receiving orthotopic heart transplantation from female donors have decreased survival. No multi-institutional series has comprehensively addressed the issue of donor and recipient sex matching for both male and female orthotopic heart transplantation recipients.

Methods and Results— We used data from the multi-institutional prospectively collected United Network for Organ Sharing open transplantation cohort to review 18 240 adult patients who received orthotopic heart transplantation from 1999 to 2007. Four donor recipient strata were identified (male donor/male recipient, N=10 750; female donor/female recipient, N=2201; male donor/female recipient, N=2121; and female donor/male recipient, N=3168). The primary end point of all cause posttransplant mortality was compared among groups using a Cox proportional hazard regression model with additional propensity adjustment. Female recipients, irrespective of donor sex, had 3.6% lower overall survival at 5 years posttransplant (P=0.003). Men who received organs from male donors had the highest cumulative survival at 5 years (74.5%). Men receiving female hearts had a 15% increase in the risk of adjusted cumulative mortality (hazard ratio, 1.15; 95% CI, 1.02 to 1.30; P=0.02). No significant increase in the relative hazard for death occurred for women receiving opposite sex donor organs (1.24; 0.92 to 1.35; P=0.31).

Conclusions— The United Network for Organ Sharing data set has provided a large sample examining donor recipient sex pairing in orthotopic heart transplantation. Men receiving organs for same sex donors have significantly improved short- and long-term survival. No survival advantage was seen for women with same sex donors.

Key Words: transplantation • sex • UNOS • outcomes • heart failure

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CLINICAL PERSPECTIVE

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