Purpose: Pre-transplant malignancy (PTM) is a relative contraindication to organ transplantation. Studies examining the impact of PTM on outcomes after lung transplantation (LTx) or orthotopic heart transplantation (OHT) are limited. We evaluated the impact of PTM on outcomes after LTx and OHT.
Methods:We retrospectively reviewed primary adult LTx and OHT recipients in the United Network for Organ Sharing database. Primary and secondary stratification were by PTM and tumor type, respectively. Matched cohorts (2:1) as well as multivariable Cox proportional hazards regression models evaluated mortality.Results: From 2000-2011, 13,613 adults underwent LTx and 19,817 adults underwent OHT. 740 (5.4%) LTx patients and 1,117 (5.6%) OHT patients had PTM. On unadjusted analysis, both LTx patients and OHT patients with PTM had similar 30 day, 1-year and 5-year survivals (p>0.05) compared to no PTM. These findings persisted after risk-adjustment. No tumor types were associated with increased mortality in LTx patients. Patients with leukemia/lymphoma/myeloma (LLM) had a significant increase in univariate mortality at 30 days (HR:1.82, p=0.04), 1-year (HR:1.93, p<0.001) and 5-years (HR:1.54, p=0.01) in OHT patients. Matched cohort analysis revealed comparable outcomes in LTx patients, but confirmed increased univariate 1-year mortality (HR:1.89, p=0.006) in OHT patients with LLM.
Conclusions:In the largest study evaluating the effects of PTM on LTx and OHT, the incidence of PTM is 5.4% and 5.6%, respectively. In general, PTM does not increase mortality in either cohort. However, OHT patients with LLM have an increased hazard of mortality. Therefore, carefully selected patients with PTM should not be excluded from LTx or OHT.