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J Invest Surg. 2018 Oct 19:1-9. doi: 10.1080/08941939.2018.1474979. [Epub ahead of print]

Microsurgery Versus Laparoscopic Surgery for Varicocele: A Meta-Analysis and Systematic Review of Randomized Controlled Trials.

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a Department of Urology , Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College , Beijing , China.



The goal of this meta-analysis and systematic review is to evaluate the overall effect and safety of microsurgery versus laparoscopic surgery in the treatment of varicocele according to qualified randomized controlled trials (RCTs).


The following electronic databases were searched including PubMed, Cochrane, Embase to identify the qualified studies and publications that were associated with this meta-analysis updated to February 2018 based on index words. The qualified studies only included RCTs. We analyzed the main outcomes through mean difference (MD) and relative risk (RR) along with 95% confidence interval (95% CI).


Totally, the current meta-analysis included 23 studies with 1178 patients in the group with microsurgery and 1069 patients in the group with laparoscopic surgery. The results indicated that compared with the laparoscopic surgery group, the microsurgery group could significantly decrease the complication rate (RR: 0.40, 95% CI: 0.21-0.75), as well as the hospital stay (WMD: -0.53, 95% CI: -0.85 to -0.21), increase the sperm concentration after the surgery (WMD: 3.00, 95% CI: 1.23-4.76), and decrease the recurrence rate (RR: 0.35, 95% CI: 0.22-0.55). Besides, there was no significant difference of operation time (SMD: 1.61, 95% CI: 0.71-2.51) and sperm motility (WMD: 2.38, 95% CI: 0.39-4.37) between the two groups.


The results demonstrated microsurgery would significantly decrease the complication, hospital stay, and recurrence rate and increase the sperm concentration when compared with laparoscopic surgery. In conclusion, microsurgery is prone to be a better alternative therapy for the treatment of varicocele than laparoscopic surgery.


complication; laparoscopic surgery; meta-analysis; microsurgery; randomized controlled trial; varicocele

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