Abstract
Introduction: The number of patients with sarcoidosis requiring heart transplantation (HT) is on the rise. Hypothesis: The aim of this study was to evaluate outcomes of isolated HT in patients with sarcoid cardiomyopathy. Methods: Adult HT recipients were identified in the UNOS Registry between 1990 and 2020. Patients were grouped according to diagnosis. The cumulative incidences for the all-cause mortality and rejection were compared using Fine and Gray model analysis, accounting for re-transplantation as a competing risk. Moreover, we reviewed characteristics and outcomes of all HT recipients with previous diagnosis of sarcoid cardiomyopathy from a single-center. Results: A total of 30,874 HT recipients were included in the present study (n=240 sarcoidosis, n=1,431 non-ischemic restrictive cardiomyopathy, and n=29,203 non-ischemic dilated cardiomyopathy). During a total of 196,985 patient-years, all-cause mortality at the latest follow-up was not significantly different when comparing sarcoidosis to non-ischemic dilated cardiomyopathy (adjusted subhazard ratio [aSHR] 1.4, 95% confidence intervals [CI]: 0.88-2.3, p=0.15) or restrictive cardiomyopathy (aSHR 1.12, 95% CI: 0.65-1.95, p=0.67). Accordingly, multivariable analysis suggested that 1-year mortality was not significantly different between sarcoidosis and non-ischemic dilated cardiomyopathy (aSHR 1.56, 95% CI: 0.9-2.7, p=0.12) or restrictive (aSHR 1.15, 95% CI: 0.61-2.18, p=0.66) cardiomyopathy. Additionally, no differences were observed regarding 30-day mortality after HT. Data from the single-center case review showed excellent long-term outcomes with sirolimus-based immunosuppression. Conclusions: Short- and long-term outcomes after isolated HT do not seem to be inferior in sarcoid cardiomyopathy when compared to common types of non-ischemic cardiomyopathy.
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