Yamamoto M, Hibi H, Hirata Y, Miyake K, Ishigaki T
Department of Urology, Nagoya University School of Medicine, Japan.
J Urol. 1996 May;155(5):1636-8.
We assessed whether subclinical varicocele ligation improves fertility and/or semen parameters.
A total of 85 patients with a subclinical varicocele diagnosed by scrotal thermography presented with infertility. Patients were randomly assigned to groups 1 (high ligation of the internal spermatic vein) and 2 (followed without any treatment). At least 3 semen samples were obtained at study entry and 1 year later in both groups.
The pregnancy rate in group 1 was 6.7% compared to 10% in group 2, and the difference was not statistically significant. Group 1 had significantly higher levels of sperm density and total motile sperm count at 1 year. There were no significant differences between groups 1 and 2 regarding change in seminal volume, sperm motility and abnormal sperm morphology.
Subclinical varicocelectomy has some effect on spermatogenesis but no beneficial effect on pregnancy rate.
我们评估了亚临床精索静脉曲张结扎术是否能改善生育能力和/或精液参数。
共有85例经阴囊热成像诊断为亚临床精索静脉曲张的不育患者。患者被随机分为1组(精索内静脉高位结扎)和2组(不进行任何治疗)。两组在研究开始时和1年后均至少采集3份精液样本。
1组的妊娠率为6.7%,2组为10%,差异无统计学意义。1组在1年后的精子密度和总活动精子数水平显著更高。1组和2组在精液量、精子活力和异常精子形态变化方面无显著差异。
亚临床精索静脉曲张切除术对精子发生有一定影响,但对妊娠率无有益影响。