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  • Title: Fertility of long-term male survivors of acute lymphoblastic leukemia diagnosed during childhood.
    Author: Byrne J, Fears TR, Mills JL, Zeltzer LK, Sklar C, Meadows AT, Reaman GH, Robison LL.
    Journal: Pediatr Blood Cancer; 2004 Apr; 42(4):364-72. PubMed ID: 14966835.
    Abstract:
    Fertility impairments among men treated during childhood for cancer are known to occur after some, but not all, types of anti-cancer therapy. This is the first study to evaluate proven fertility among adult male survivors of childhood acute lymphoblastic leukemia (ALL). In a retrospective cohort study, proven fertility (ever fathered a pregnancy) was evaluated by self-report among 213 men treated for ALL before age 18 on protocols of the Children's Cancer Group (CCG). Controls (N = 145) were drawn from among male siblings. Overall, with a proportional hazards analysis, proven fertility of male survivors was not different from that of controls (relative fertility (RF) = 0.95, 95% CI 0.63-1.43). However, married men treated before age 10 with high dose (24 cGy) cranial radiotherapy (RT), without spinal RT, had only 9% of the fertility of controls (Relative risk, RR = 0.09, 95% CI 0.01-0.82). High dose cranial RT at older ages was not associated with a statistically significant fertility deficit (RR = 0.56, 95% CI 0.25-1.28). In this first study of proven fertility among men treated for childhood leukemia, the majority of survivors showed no evidence of fertility impairment compared to controls. However, men treated at a young age with high dose cranial RT may have impaired fertility. These results suggest that further investigation of men with these treatments is needed to confirm and extend these findings.
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