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  • Title: Outcomes of Early Adolescent Donor Hearts in Adult Transplant Recipients.
    Author: Madan S, Patel SR, Vlismas P, Saeed O, Murthy S, Forest S, Jakobleff W, Sims D, Lamour JM, Hsu DT, Shin J, Goldstein D, Jorde UP.
    Journal: JACC Heart Fail; 2017 Dec; 5(12):879-887. PubMed ID: 28822746.
    Abstract:
    OBJECTIVES: This study sought to determine outcomes of adult recipients of early adolescent (EA) (10 to 14 years) donor hearts. BACKGROUND: Despite a shortage of donor organs, EA donor hearts (not used for pediatric patients) are seldom used for adults because of theoretical concerns for lack of hormonal activation and changes in left ventricular mass. Nonetheless, the outcomes of adult transplantation using EA donor hearts are not clearly established. METHODS: All adult (≥18 years of age) heart transplant recipients in the United Network for Organ Sharing database between April 1994 and September 2015 were eligible for this analysis. Recipients of EA donor hearts were compared with recipients of donor hearts from the usual adult age group (ages 18 to 55 years). Main outcomes were all-cause mortality and cardiac allograft vasculopathy up to 5 years, and primary graft failure up to 90 days post-transplant. Propensity score analysis was used to identify a cohort of recipients with similar baseline characteristics. RESULTS: Of the 35,054 eligible adult recipients, 1,123 received hearts from EA donors and 33,931 from usual-age adult donors. With the use of propensity score matching, 944 recipients of EA donor hearts were matched to 944 recipients of usual-age adult donor hearts. There was no difference in 30-day, 1-year, 3-year, and 5-year recipient survival or primary graft failure rates in the 2 groups using both Cox hazards ratio and Kaplan-Meier analysis. Of note, adult patients who received EA donor hearts had a trend toward less cardiac allograft vasculopathy (Cox hazard ratio, 0.80; 95% confidence interval: 0.62 to 1.01; p = 0.07). CONCLUSIONS: In this largest analysis to date, we found strong evidence that EA donor hearts, not used for pediatric patients, can be safely transplanted in appropriate adult patients and have good outcomes. This finding should help increase the use of EA donor hearts.
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