Testicular sperm extraction in 50 men with nonobstructive azoospermia associated with cryptorchidism: clinical parameters predictive of successful sperm extraction

摘要

Bilateral cryptorchidism is a severe factor of male infertility. We evaluated the results of testicular sperm extraction in 50 men with nonobstructive azoospermia associated with cryptorchidism between 1995 to 2001. We evaluated clinical parameters predictive of successful sperm extraction. Serum follicle stimulating hormone (FSH) was elevated in 67 of cases and testicular volume was decreased in 70 of cases, confirming the secretory origin of the azoospermia. Serum follicle stimulating hormone (FSH), testicular volume and histological parameters were examined as predictive factors for sperm recovery. The positive sperm recovery rate was 68. As in the population of men with nonobstructive azoospermia, the sperm recovery rate for patients with a history of orchidopexy is approximately 68 and there are currently no clinical parameters predicting successful sperm retrieval in this subpopulation of patients.