Chen Z W, Gu Y Q, Liang X W, Wu Z G, Yin E J
National Research Institute for Family Planning, Beijing, China.
Int J Androl. 1992 Dec;15(6):468-72. doi: 10.1111/j.1365-2605.1992.tb01140.x.
This report describes the safety and efficacy of the procedure for percutaneous injection of medical-grade polyurethane elastomer (MPU) to form plugs in the vas deferens. The injection of 0.16-0.22 ml MPU in 53 men resulted in occlusion and azoospermia in 85% of the men after 12 months; 96% achieved azoospermia by 2 years. The success rate of the method and the rate of sperm suppression to azoospermia depended on the shapes of the plugs; this was determined by palpation after insertion. There were few complications and the results are discussed in terms of the reversibility potential of this method.
本报告描述了经皮注射医用级聚氨酯弹性体（MPU）在输精管中形成栓子的手术的安全性和有效性。对53名男性注射0.16 - 0.22毫升MPU后，12个月时85%的男性出现输精管闭塞和无精子症；到2年时96%的男性达到无精子症。该方法的成功率以及精子抑制至无精子症的比率取决于栓子的形状；这通过插入后触诊确定。并发症很少，并根据该方法的可逆性潜力对结果进行了讨论。
