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Am J Transplant. 2014 Sep;14(9):2055-61. doi: 10.1111/ajt.12811. Epub 2014 Aug 6.

Cardiovascular MRI predicts 5-year adverse clinical outcome in heart transplant recipients.

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  • 1Division of Cardiology, Mazankowski Alberta Heart Institute, Edmonton, Alberta, Canada.


Imaging recommendations for the follow-up of heart transplant recipients (HTRs) lack evidence justifying their prognostic value. Cardiovascular magnetic resonance imaging (CMRI) can characterize heart structure and function and has prognostic value in many myocardial diseases. We hypothesized that CMRI evaluation of cardiac allografts would predict adverse events. We performed CMRI on 60 HTRs evaluating biventricular size, function and myocardial scar. We performed survival analysis to identify independent predictors of cardiovascular (CV) death or hospitalization. Participants had a mean age of 51 ± 14 years, mean graft age of 3.5 years (±4) and 75% are male. Median follow-up time was 4.9 years with 22 CV hospitalizations and 7 CV deaths. A multivariable survival analysis of imaging and clinical variables identified myocardial scar (hazard ratio [HR] of 10.7, p = 0.005), right ventricular end- diastolic volume index (RVEDVI; 1.1/mL/m(2) , p = 0.001), graft age (HR = 1.2/year, p = 0.004) and previous allograft rejection (HR = 4.4, p = 0.006) as predictive of time to CV death or hospitalization. CMRI-derived myocardial scar and RVEDVI are independently associated with CV outcomes in HTRs.

© Copyright 2014 The American Society of Transplantation and the American Society of Transplant Surgeons.


Clinical research/practice; diagnostic techniques and imaging: magnetic resonance imaging; heart (allograft) function/dysfunction; heart transplantation/cardiology; patient survival

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