Biomaterial Database

A clinical study of vasectomy failure and recanalization. 1975

K A Kaplan, and C A Huether

An analysis was made of the 26 unsuccessful operations from the 2,197 vasectomies performed in a non-profit medical facility. Hhe operations were performed by 6 physicians and significant differences were found in the failure rates. In all instances the tissue removed proved to be vas deferens when examined histologically. Two factors seem to account for the differences of failure rates amoung the physicians; 1) the lenght of vas excised and 2) the character of thechnique. Phsicians with a high rate of success removed a significantly longer section of vas than physicians exhibiting higher failure rates. At least 15 mm. of vas should be excised to maximize the success of the procedure. Excised vas segments less than 15 mm. had up to a 25-fold greater incidence of failure. Although considered of secondary importance, good surgical technique subjectively measured by the minimal amount of accessory tissue attached to the excised vasa was also considered to aid in reducing the number of vasectomy failures.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013245	Sterilization, Reproductive	Procedures to block or remove all or part of the genital tract for the purpose of rendering individuals sterile, incapable of reproduction. Surgical sterilization procedures are the most commonly used. There are also sterilization procedures involving chemical or physical means.	Reproductive Sterilization,Voluntary Sterilization,Female Sterilization,Female Sterilization, Voluntary,Male Sterilization,Male Sterilization, Voluntary,Female Sterilizations,Female Sterilizations, Voluntary,Male Sterilizations,Male Sterilizations, Voluntary,Reproductive Sterilizations,Sterilization, Female,Sterilization, Male,Sterilization, Voluntary,Sterilizations, Female,Sterilizations, Male,Sterilizations, Reproductive,Sterilizations, Voluntary,Voluntary Female Sterilization,Voluntary Female Sterilizations,Voluntary Male Sterilization,Voluntary Male Sterilizations,Voluntary Sterilizations
D014649	Vas Deferens	The excretory duct of the testes that carries SPERMATOZOA. It rises from the SCROTUM and joins the SEMINAL VESICLES to form the ejaculatory duct.	Ductus Deferens,Deferens, Ductus,Deferens, Vas
D014659	Vasectomy	Surgical removal of the ductus deferens, or a portion of it. It is done in association with prostatectomy, or to induce infertility. (Dorland, 28th ed)	Intravasal Thread,Vas Ligation,Vas Occlusion,Vas Occlusion, Nonchemical,Vasectomy Seekers,Vasectomy Seekers, Refused,Intravasal Threads,Ligation, Vas,Ligations, Vas,Nonchemical Vas Occlusion,Nonchemical Vas Occlusions,Occlusion, Nonchemical Vas,Occlusion, Vas,Occlusions, Nonchemical Vas,Occlusions, Vas,Refused Vasectomy Seeker,Refused Vasectomy Seekers,Seeker, Refused Vasectomy,Seeker, Vasectomy,Seekers, Refused Vasectomy,Seekers, Vasectomy,Thread, Intravasal,Threads, Intravasal,Vas Ligations,Vas Occlusions,Vas Occlusions, Nonchemical,Vasectomies,Vasectomy Seeker,Vasectomy Seeker, Refused