Abstract
To investigate, in a prospectively randomized trial, whether preoperative gonadotropin-releasing hormone (GnRH) therapy improves the fertility index in primary cryptorchidism. Cryptorchidism is a common condition with a high risk of infertility. Treatment with GnRH appears to improve fertility later in life by inducing germ cell maturation. A total of 24 boys, 12-123 months old (median 34.5), with 24 undescended testes were prospectively assigned to 2 groups during a 24-month period. The patients were randomized to receive either orchiopexy alone (n = 12) or orchiopexy combined with neoadjuvant GnRH therapy (n = 12) as a nasal spray for 4 weeks at 1.2 mg/d. In both groups, testicular biopsies were performed at orchiopexy, and the histopathologic fertility index was determined. The mean fertility index in the group treated with GnRH before surgery was significantly greater (0.88 +/- 0.31) than in the group without hormonal stimulation (0.49 +/- 0.52; P = .02). No significant correlation was found between the fertility index in the GnRH group and the patient's age. The results of our study have shown that neoadjuvant GnRH treatment improves the fertility index in prepubertal cryptorchidism and, consequently, should improve fertility in adulthood.
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