Carl P, Schill W B
Urologe A. 1977 Sep;16(5):298-301.
The moral justification for substitutive sterilization presupposes a critical verification of the sterilization wishes and an exact explanation to both partners. With the acquisition of the proper consent, the explanation of the absolute necessity of the postoperative spermiogram check-up cannot be neglected. Comparison of the spermiograms of unalterably vasectomized men with findings from additional rinsings with physiological saline solution and nitrofurantoin showed that the instillation of the vas deferens leads to a swift, mechanically dependent, emptying of the distal sperm depot. Through instillation of the spermicidal substance nitrofurantoin and the resulting spermatozoa immobilization, this effect can be considerably increased.
替代绝育的道德合理性前提是对绝育意愿进行严格核查，并向双方伴侣作出确切解释。在获得适当同意后，术后精液检查绝对必要性的解释不容忽视。将不可逆转输精管结扎男性的精液检查结果与用生理盐水和呋喃妥因额外冲洗的结果进行比较，结果表明，输精管滴注可导致远端精子储存库迅速、机械性排空。通过滴注杀精物质呋喃妥因并由此使精子固定，这种效果可显著增强。
