Abstract
Screening for coronary artery disease is common practice in the evaluation of liver transplantation candidates. However, it is unclear whether coronary screening influences transplantation eligibility. We sought to determine the association between screening stress myocardial perfusion imaging (MPI) results and the eligibility for liver transplantation. Within a retrospective cohort of liver transplantation candidates referred for screening stress MPI at a single institution from April 1998 to February 2004, we obtained the baseline characteristics, stress MPI results, transplantation eligibility, and transplantation denial criteria by chart review. Of 294 patients (39%) denied transplantation, the denial criteria were multifactorial for 91 (31%) of the candidates. Compared to candidates with low-risk stress MPI results, the odds of being denied transplantation were the same for candidates with intermediate-risk MPI results (odds ratio 0.93, 95% confidence interval 0.45 to 1.82) or high-risk MPI results (odds ratio 1.42, 95% confidence interval 0.54 to 3.73). This lack of association persisted in our analysis with additional stratification of stress MPI results into negative, positive-low-risk, positive-intermediate-risk, and positive-high-risk. In conclusion, the screening stress MPI results were not associated with liver transplantation eligibility. The large number of competing factors considered before transplantation listing and the low proportion of positive stress MPI results suggests that targeting screening to patients deemed otherwise acceptable for transplantation might increase the influence of stress MPI findings on transplantation eligibility.
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