BJU Int
Department of Urology, and IVF Laboratory, St. Elisabeth Hospital, Tilburg, the Netherlands.
Published: June 2010
Objective: To evaluate the safety and efficacy of a new semen analysis protocol after vasectomy, where clearance is given to patients who provide a single semen sample with <100 000 immotile sperm/mL at > or = 3 months after vasectomy.
Patients And Methods: Between 1 July 2005 and 31 March 2008, 1073 men provided a first semen sample at > or = 3 months after vasectomy. Semen was first evaluated on a wet-slide preparation. Those samples with no ('azoospermia') or sporadic immotile spermatozoa could be cleared without further analysis. Samples with motile sperm were immediately labelled as potentially fertile, while those with a significant number of immotile sperm were re-analysed using a Neubauer haemocytometer. All samples with <100 000 immotile sperm/mL were cleared.
Results: Of men providing semen at 3 months after vasectomy, 96% could be cleared. No sperm were seen ('azoospermia') in 51.3% of samples, and 44.7% of samples contained <100 000 immotile sperm. No paternity has been reported in the cleared group after a follow-up of at least 1 year.
Conclusions: A protocol stipulating that patients can be cleared after a single semen sample containing <100 000 immotile sperm/mL at > or = 3 months after vasectomy is safe and dramatically reduces the number of men who cannot be cleared at 3 months after vasectomy.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1111/j.1464-410X.2009.09074.x | DOI Listing |
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!
© LitMetric 2025. All rights reserved.