Abstract

Fertility preservation is an important concern for young cancer patients. Oocyte or embryo cryopreservation prior to chemotherapy administration is desirable but often difficult for patients with hematopoietic and lymphoid tissue tumors. In this study, we examined the results of fertility preservation therapy in patients with hematopoietic and lymphoid tissue tumors. We retrospectively examined hematopoietic and lymphoid tissue tumors of five patients who underwent oocyte cryopreservation as a fertility preservation therapy after chemotherapy, at Showa University Hospital from February 2017 to September 2020. Eleven treatment cycles were administered (one of which was cancelled). The mean age of the patients was 28.6 years. The mean controlled ovarian stimulation duration for 10 cycles was 15.9 days, the mean total gonadotropin dose was 3705 IU, and the mean peak E2 was 502.8 (pg/mL). The mean number of eggs retrieved was 3.2, the mean number of mature oocytes was 2.1, and the mean maturation rate (mature oocytes/returned oocytes) was 70.7%. Fertility preservation procedures in the early period after chemotherapy may be viable because they allow for the acquisition of mature oocytes, even though the procedures may take longer and yield fewer oocytes.

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