Studies on Vasectomy: II. Comparative Studies of Splinting Materials on the Vas Anastomosis of the Animals and a Report of Consecutive Successful Anastomosis of the Humans

Lee, Hee Yong; Lee, Hak Song

Abstract

A total of 42 vas anastomoses was performed on experimental animals and successful anastomoses were obtained 19 of the cases and the over-all rate of success was approximately 46 per cent. But 13 dogs in total of 21 dogs were found to be patent in at least one side of vas, or about 65 per cent of total dogs were restored their fecundity. Splinting materials used in this comparative study are chromic catgut, stainless steel wire, dermalon and polyethylen tube, and dermalon has been proved as the most excellent splinting material among thembecause it is no figid but plable and makes no tissue reaction in the vas. Successful anastomosis of vas deferent is affected by many factors. Among these, an inadequate splinting material has been considered as the most important causes of failures. But it should seem that minimal dissection of the tied points of vas as satisfactory approximation of the free ends of vas exert very important effect upon the successful anastomosis as the splinting material does. Consecutive four successful anastomosis of human cases are highly satisfactory results and are very encouraging even in a small series of cases of the present study.