Abstract: |
Background: Data on ovarian function (OvF) in medulloblastoma (MB) survivors is limited, with most studies describing outcomes in survivors treated with craniospinal irradiation (CSI) doses >24Gy±standard chemotherapy. The objective of the current study is to report on OvF: (i) across a range of CSI doses; and (ii) following high-dose chemotherapy with autologous stem cell rescue (ASCR). Procedure: Retrospective review of female MB survivors who were diagnosed in childhood and followed at Memorial Sloan Kettering Cancer Center. Patients were divided into three groups: (i) CSI ≤24Gy+/-standard chemotherapy; (ii) CSI ≥35Gy+/-standard chemotherapy; and (iii) high-dose chemotherapy with ASCR+/-CSI. Results: Primary ovarian dysfunction (POD) occurred in 2/17 subjects in group 1, 3/9 subjects in group 2 and 5/5 subjects in group 3 (P<0.01). Normalization of function was noted in four subjects with POD. Persistent POD requiring hormone replacement (POF) was observed in 1/17 subjects in group 1, 2/9 in group 2, and 3/5 in group 3 (P=0.02). Neither age at treatment nor type of standard chemotherapy correlated with risk of POD or POF. Conclusions: Both POD and POF appear to occur in a small proportion of patients who are treated with contemporary doses of CSI+/-standard chemotherapy. However, ovarian dysfunction requiring hormone replacement therapy is common following high-dose chemotherapy associated with ASCR. These findings will assist clinicians in counseling patients regarding fertility preservation and risk of impaired ovarian function/future fertility. © 2014 Wiley Periodicals, Inc. |