Aim: To examine the predictive factors of successful varicocelectomy in infertile patients. Methods: Thirty-five infertile male patients with varicocele and requiring varicocelectomy were recruited in this study. The patients were divided into 2 groups based on their recovery outcome after subinguinal microsurgical varicocelectomy. Patients who showed significant improvement on their sperm density, motility and morphology 6 months after varicocelectomy were designated as group 1, whereas those who showed no improvement 6 months after surgery were designated as group 2. The predictive factors that were examined included: age; preoperative semen quality (i.e. sperm density, motility and morphology); testicular volume; seminal volume; varicocele grade; the number of ligated veins; body mass index (BMI), and serum levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), prolactin, testosterone, alkaline phosphatase (Alk-p), lactic dehydrogenase (LDH), cholesterol and triglyceride. Results: Sperm density, motility and morphology improved significantly 6 months after varicocelectomy in group 1 patients (n = 35; 71.4%). Group 1 patients had significantly higher testicular volumes (mean ± SD: 29.6 ± 5.9 vs. 23.2 ± 6.1 ml), lower FSH (11.3 ± 2.9 vs. 16.1 ± 4.8 mIU/ml) and higher numbers of ligated veins (9.3 ± 0.8 vs. 7.9 ± 0.7) than group 2 patients. No significant association was observed between surgical outcome and age, preoperative sperm density, motility and morphology, seminal volume, varicocele grade, BMI and serum levels of LH, prolactin, testosterone, Alk-p, LDH, cholesterol and triglyceride. Conclusions: These findings suggest that the significant predictive factors of successful varicocelectomy in infertile patients were high testicular volume (>29.6 ml), low serum concentration of FSH (<11.3 mIU/ml) and high number of ligated veins (>9).

Keywords:
Infertility, Testicular volume, Varicocele, Varicocelectomy, predictive factors, Follicle-stimulating hormone
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© 2011 S. Karger AG, Basel
2011
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