Early Recanalization After Vasectomy
Author Information
Author(s): Michel Labrecque, Melissa Hays, Mario Chen-Mok, Mark A Barone, David Sokal
Primary Institution: Centre de recherche du Centre Hospitalier Universitaire de Québec (CHUQ)
Hypothesis
What is the frequency and semen analysis patterns of early recanalization after vasectomy?
Conclusion
Early recanalization, occurring within the first weeks after vasectomy, is more common than generally recognized, with its frequency depending on the occlusion technique performed.
Supporting Evidence
- The overall proportion of men with presumed early recanalization was 13%.
- The risk was highest with ligation and excision without fascial interposition at 25%.
- No early recanalization was observed with thermal cautery combined with fascial interposition.
Takeaway
After a vasectomy, some men might still have sperm in their semen for a while, which can happen more often than we thought, depending on how the surgery was done.
Methodology
The study analyzed semen results from two groups: one from a randomized trial of fascial interposition and another from an observational study of cautery, totaling 1215 men.
Potential Biases
Potential bias due to reviewers knowing outcomes while assessing charts.
Limitations
The study design differences and non-randomized groups may affect the comparison of occlusion techniques.
Participant Demographics
Men undergoing vasectomy, with 826 from the FI trial and 389 from the cautery study.
Statistical Information
P-Value
0.15
Confidence Interval
95% CI 12%–15%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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