title: LHRH treatment in unilateral cryptorchidism: effect on testicular descent and hormonal response.
abstract: Fifty unilaterally cryptorchid boys aged 3 to 8 years were randomly and blindly allocated to treatment with luteinizing hormone releasing hormone or placebo intranasally. In the treated group, no significant descent of the undescended testis was found, whereas a minor downward movement of the scrotal testis occurred (P less than 0.001), probably as a result of decreased retraction by the cremaster muscle. Basal serum testosterone concentrations and testicular volume increased after treatment (P less than 0.01 and P less than 0.001, respectively). The response to an acute LHRH test, 100 micrograms/m2 body surface IV, before and after treatment, showed an increase in the luteinizing hormone peak value and a decrease in the follicle-stimulating hormone response in a significant number of patients (P less than 0.001). In the individual patient, there was a positive correlation between the increase in basal serum testosterone concentration and the degree of downward movement of the undescended testis (P less than 0.05).
mesh_terms: D002648:Child; D002675:Child, Preschool; D003456:Cryptorchidism / Q000188:drug therapy*; D004311:Double-Blind Method; D005640:Follicle Stimulating Hormone / Q000097:blood; D007987:Gonadotropin-Releasing Hormone / Q000627:therapeutic use*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D011897:Random Allocation; D013737:Testis / Q000033:anatomy & histology; D013739:Testosterone / Q000097:blood
chemical_list: D007987:Gonadotropin-Releasing Hormone; D013739:Testosterone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone