Determining the success of vasectomy

BJU International
Nivedita Bhatta DharJ Stephen Jones

Abstract

To examine patient compliance, significance of rare nonmotile sperm (RNMS) and to determine the timing and number of semen analyses required to confirm sterility. From November 2001 to November 2004, 436 consecutive primary vasectomies were performed by one surgeon. All patients were instructed to submit two initial semen specimens for analysis (2 and 3 months after vasectomy) and additional samples (at 1-month intervals) if sperm were identified on the initial and subsequent analyses. A quarter of the patients submitted no semen specimens and only 21% followed the full instructions to provide two consecutive negative semen analyses. Three-quarters of the patients provided a semen specimen at 8 weeks after vasectomy; of these, 75% were azoospermic and 25% contained sperm. At 12 weeks after vasectomy half the patients provided a semen specimen; of these, 91% were azoospermic and 9% contained sperm. Of the 83 patients with semen containing sperm at 8 weeks, 80 had RNMS and three had rare motile sperm (one of whom subsequently proved to have vasectomy failure). Of the 80 patients with RNMS, at 3, 4, 5, 6, 8, 10 and 11 months, 65, four, three, four, two, one and one, respectively were azoospermic. The present results indicate that ...Continue Reading

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Citations

Feb 16, 2010·Asian Journal of Andrology·John K AmoryRichard E Berger
Jan 1, 2007·Indian Journal of Urology : IJU : Journal of the Urological Society of India·Nivedita Bhatta Dhar, J Stephen Jones
Nov 5, 2013·The Urologic Clinics of North America·Matthew D Rogers, Peter N Kolettis
Nov 17, 2009·Contraception·Yefim SheynkinDavid Schulsinger
Feb 26, 2009·BJU International·Nicholas P MunroSubramanian K Sundaram
Aug 3, 2007·BJU International·Kaka Hama AttarTim Philp
Mar 11, 2011·BJU International·Eshan SenanayakeDerek J Rosario
Aug 7, 2013·The Journal of Urology·Robert M CowardLarry I Lipshultz
Mar 6, 2010·Scandinavian Journal of Urology and Nephrology·Kaka Hama AttarTim Philp

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