Objectives. To investigate the influence of treatment for testicular cancer on the pituitary-gonadal axis and sexual function in long-time survivors after unilateral orchiectomy. Methods. Blood was drawn from patients treated for testicular cancer during routine oncologic follow-up for measurement of luteinizing hormone, follicle-stimulating hormone, sexual hormone-binding globulin, testosterone, and bioavailable testosterone. Sexual function was evaluated using the International Index of Erectile Function 15-item (IIEF-15) questionnaire. Patients were grouped according to treatment: group 1 followed a surveillance strategy, group 2 received two cycles of carboplatin monotherapy, and group 3 underwent cisplatin, etoposide, and bleomycin chemotherapy. Results. No statistically significant difference was found in the serum hormonal levels among the three groups, and all hormonal levels were within the 95% confidence range, except for follicle-stimulating hormone. The median serum testosterone level was 3.5 ng/mL in group 1, 3.9 ng/mL in group 2, and 4.2 ng/mL in group 3. In group 1, the median 'IIEF-15 score was 64.0, and the median Erectile Function (EF) domain score was 28. The median scores in groups 2 and 3 were 62.5 for IIEF-15 and 27.5 for EF and 65.0 for IIEF-15 and 30.0 for EF, respectively. No correlation was found between testosterone level and IIEF-15 or EF score. Conclusions. None of the treatments investigated had a significant influence on the serum hormonal levels in long-time survivors of testicular cancer. Patients undergoing chemotherapy have no greater risk of developing a hormonal disorder than those following a surveillance strategy, and therapy for testicular cancer is not a risk factor for erectile dysfunction.
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