title: Intravasal injection of formed-in-place silicone rubber as a method of vas occlusion.
abstract: This report describes the procedure for percutaneous injection of silicone to form plugs in the vas deferens. The injection of 0.1-0.16 ml Chinese-made silicone into 14 men achieved occlusion of a 1-cm length of the vas. Sperm concentrations declined within 1 month of the operation and azoospermia was achieved in all men by 9 months.
authors: Shanxi Provincial People's Hospital, Shanxi Provincial Fertility Regulation Centre, Taiyuan, People's Republic of China.
authors: S C
authors: SC
authors: Zhao
authors: S P
authors: SP
authors: Zhang
authors: R C
authors: RC
authors: Yu
mesh_terms: D000328:Adult; D006801:Humans; D007267:Injections; D008297:Male; D019736:Prostheses and Implants; D012826:Silicone Elastomers / Q000008:administration & dosage*; D013245:Sterilization, Reproductive / Q000379:methods*; D014649:Vas Deferens
chemical_list: D012826:Silicone Elastomers