Non-motile sperms persisting after vasectomy: do they matter?
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Biomedical subjects
Publications and source records attributed to I S Edwards.
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Two hundred men who had undergone vasectomy during which euflavine 1:1000 solution was used as a spermicide have been followed up for a year. In most cases the spermicidal effect was complete, but there were two definite and two probable instances of failure. Introduction of an irrigant may possibly increase the otherwise extremely low incidence of spontaneous recanalization when Schmidt's diathermy technique is used for vasectomy.
Five hundred men have been followed up for 12 to 15 months after vasectomy. A simple postoperative regimen for confirmation of sterility has proved to be reliable. This comprised examination of a single fresh seminal specimen after 10 ejaculations, non-motile sperm being disregarded and the test being repeated only in those rare cases in which motile sperm were found. Sterility was demonstrated for 26% of men within four weeks of operation, and for 69% of them within eight weeks.
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