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Long-term testicular cancer survivors at high risk for neurological side effects
Long-term survivors of testicular cancer who were treated with cisplatin-based chemotherapy had more severe side effects, including neurological side effects and Raynaud-like phenomena, than men who were not treated with chemotherapy, according to a new study published online November 25 in the Journal of the National Cancer Institute.
Marianne Brydoy, M.D., of the Department of Oncology, Haukeland University Hospital, in Bergen, Norway, and colleagues conducted a cross-sectional study to assess the prevalence of these known side effects among long-term testicular cancer survivors in Norway according to the treatment they had received. Side effects include sensory neuropathy, tinnitus, hearing impairment, and Raynaud-like phenomena (discolouration of the hands or feet on exposure to cold).
Researchers invited 1,814 men who were treated for unilateral testicular cancer during 1980-1994 to participate in a national multicentre follow-up survey conducted during 1998-2002. A total of 1,409 participants, who were allocated to three groups based on cisplatin administration, were assessable in this study.
The researchers found that at 4-21 years after the initiation of treatment for testicular cancer, men who had received any chemotherapy had statistically significantly higher odds for increasing severity of all assessed symptoms compared with men not treated with chemotherapy. Treated men also had more hearing impairment, as measured by audiometry, particularly those who had received dose-intensive chemotherapy.
'A major aim in the treatment of testicular cancer is to minimise toxic effects without compromising the high cure rate,' the authors write. 'Our data favour the use of chemotherapy regimens that contain 20 mg/m2 cisplatin per day to limit ototoxicity.'
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