Testicular sperm extraction for fertility preservation in young patients with cancer

Cancer survivors in the adolescent and young adult generation often experience marriage, pregnancy, and childbirth after treatment; thus, fertility preservation is very important. In male patients, testicular sperm extraction (TESE) is sometimes performed due to azoospermia. Such a procedure is called oncological TESE (onco-TESE). In the present study, we aimed to define onco-TESE as TESE for fertility preservation in cancer patients, including those receiving gonadotoxic treatment.

Seventeen male patients with cancer who had undergone onco-TESE for fertility preservation at Yokohama City University Medical Center between April 2014 and March 2023 were included in the study.

Motile testicular sperm were acquired by TESE in 9 out of 17 cases. Among patients who had initiated chemotherapy before surgery, Motile sperm could be acquired by onco-TESE in 3 out of 9 cases. In chemotherapy-naive patients, Motile sperm were acquired by onco-TESE in 6 out of 8 cases. In the end, sperm cryopreservation was performed in 10 patients. Cryopreserved sperm were used in 2 of the 10 cases, and live birth was achieved after intracytoplasmic sperm injection in both cases.

Before starting gonadotoxic treatment, it is important to confirm whether the patient desires to bear children. If having a baby is desired, a referral to a reproductive medicine doctor is recommended. Fertility preservation before starting gonadotoxic treatment is preferable, but fertility preservation could be considered even after such a treatment.