Long-term complications of platinum-based chemotherapy in testicular cancer survivors

J H Oh, D D Baum, S Pham, M Cox, S T Nguyen, J Ensor, I Chen
Medical Oncology 2007, 24 (2): 175-81
The purpose of this study was to describe the rates of cardiovascular and other medical complications related to the use of platinum-based chemotherapy in American testicular cancer survivors. The study sample consisted of 143 eligible long-term testicular cancer survivors. Participants were interviewed, their medical records were reviewed, and blood was obtained for cholesterol measurement during their follow-up visit. The mean follow-up time was 8.4 yr, and their mean age at follow-up was 41.2 yr; 72.7% had had non-seminoma, and 82.5% had received platinum-based chemotherapy. Hypertension rates in the platinum-treated group increased significantly from baseline to follow-up; however, once adjusted for blood pressure measurement (undiagnosed hypertension), no such increase was seen, and hypertension rates were already higher than national estimates at baseline in all groups. At the follow-up visit, the rates of hyperlipidemia (adjusted for measured cholesterol level) in both platinum- and non-platinum-treated groups (28.4% and 37.5%, respectively) were higher than national estimates (16.9%). Rates of coronary artery disease were higher in those who had received platinum and radiation (11.1%) than in those who had received platinum alone (4.3%), but this difference was not statistically significant. As suggested by previous studies, platinum-based chemotherapy may be associated with hypertension, hyperlipidemia, and coronary artery disease. However, our data suggest that undiagnosed hypertension and hyperlipidemia may be significant confounders, and we also observed a trend toward lower testosterone levels in participants who experienced cardiovascular complications.

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