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EVALUATION STUDY
JOURNAL ARTICLE
META-ANALYSIS
SYSTEMATIC REVIEW
Effect of adjuvant drug therapy after varicocelectomy on fertility outcome in males with varicocele-associated infertility: Systematic review and meta-analysis.
Andrologia 2018 October
Varicocele is one of the common correctable causes of male infertility. Recent studies have demonstrated varicocelectomy in males with abnormal semen parameters was associated with better fertility outcome, but the effect of adjuvant drug therapy after varicocelectomy on fertility outcome in patients with varicocele-associated infertility remains undefined. Hence, the present meta-analysis was performed to assess the efficacy of adjuvant drug therapy after varicocelectomy. The protocol was registered with PROSPERO (No. CRD42018093749). Ten randomised controlled trails containing 533 patients with adjuvant drug therapy after varicocelectomy and 368 patients with no medical treatment after varicocelectomy were included. Our analysis revealed that the improvement in pregnancy rate after adjuvant drug therapy was insignificant. (OR = 1.70, 95%CI = 0.99-2.91), but resulted in significant improvements in sperm concentration (MD = 13.71, 95%CI = 5.80-21.63) and motility (MD = 4.77, 95%CI = 3.98-5.56) at 3 months, sperm DNA integrity (SMD = 3.13, 95%CI = 1.50-4.75) and serum FSH level (MD = -1.02, 95%CI = -1.79 to -0.24). Therefore, compared to no medical treatment, the adjuvant drug therapy, especially the use of antioxidants seems to be associated with better fertility outcome. However, more evidences with high-quality studies are necessary to conform its benefits.
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