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  • Title: Intraoperative observations during vasovasostomy in 334 patients.
    Author: Belker AM, Konnak JW, Sharlip ID, Thomas AJ.
    Journal: J Urol; 1983 Mar; 129(3):524-7. PubMed ID: 6834537.
    Abstract:
    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.
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