Does the gonadotropin-releasing hormone stimulation test predict clinical outcomes after microsurgical varicocelectomy?

OBJECTIVES: To examine the predictive value of the gonadotropin-releasing hormone (GnRH) stimulation test in a large cohort of infertile men undergoing varicocelectomy. METHODS: We examined the records of 144 consecutive infertile couples in whom the man underwent microsurgical varicocelectomy between September 1998 and December 2002. All men underwent a GnRH stimulation test before surgery.

Data on the preoperative and postoperative semen parameters, pregnancy outcome, and follicle-stimulating hormone (FSH) and luteinizing hormone increase after GnRH stimulation were recorded. RESULTS: The mean (+/-SE) sperm concentration and motility 6 months after varicocelectomy were significantly greater than the preoperative values (25.3 +/- 2.4 versus 19.7 +/- 2.1 x 10(6)/mL and 29.2% +/- 1.4% versus 25.3% +/- 1.3%, respectively, P The median elevation in the FSH and luteinizing hormone ... more.

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