Vas deferens occlusion by percutaneous injection of polyurethane elastomer plugs: clinical experience and reversibility
Zhao, S.C.
Contraception 41(5): 453-459
1990
ISSN/ISBN: 0010-7824 PMID: 2347193 DOI: 10.1016/0010-7824(90)90055-zDocument Number: 378712
A non-incision method of vas occlusion based on the percutaneous injection of polyurethane elastomer solution to form plugs is described. The results are based on clinical experience in 12,000 men in which only 56 cases of minor complications were recorded. Follow-up of 500 men for up to 3 years demonstrated an azoospermai rate of 98%. Plugs have been removed from 86 men and, to date, 51 have made their wives pregnant. In those from which the plugs have been removed for more than 1 year (n = 31), the pregnancy rate is 100%.