Belker A M, Konnak J W, Sharlip I D, Thomas A J
J Urol. 1983 Mar;129(3):524-7. doi: 10.1016/s0022-5347(17)52215-6.
This initial report from the Vasovasostomy Study Group concerns intraoperative data obtained during vasovasostomy from 639 vasa in 334 patients. These data are related to the obstructive interval (time from vasectomy to vasovasostomy) and to the presence or absence of histologically proved sperm granuloma at the old transected testicular end of the vas (vasectomy site). Rates of sperm absence from vas fluid at the testicular end increased with longer obstructive intervals and with absence of a sperm granuloma. If sperm were present in fluid at the testicular end of the vas, the quality was poorer when the obstructive interval lengthened and when sperm granuloma was absent. Vas luminal diameters at the testicular end were smaller when a sperm granuloma was present. These observations support the theory that a sperm granuloma at the vasectomy site may have a beneficial, pressure-releasing effect that could be favorable prognostically for fertility after vasovasostomy.
输精管吻合术研究小组的这份初步报告涉及在334例患者的639条输精管上进行输精管吻合术时获得的术中数据。这些数据与梗阻间隔时间（从输精管结扎术到输精管吻合术的时间）以及输精管旧的切断睾丸端（输精管结扎部位）是否存在经组织学证实的精子肉芽肿有关。随着梗阻间隔时间延长以及不存在精子肉芽肿，输精管睾丸端管腔内无精子的发生率增加。如果输精管睾丸端管腔内有精子，当梗阻间隔时间延长且不存在精子肉芽肿时，精子质量较差。当存在精子肉芽肿时，输精管睾丸端的管腔直径较小。这些观察结果支持这样一种理论，即输精管结扎部位的精子肉芽肿可能具有有益的、释放压力的作用，这在输精管吻合术后生育预后方面可能是有利的。
