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Related Experiment Videos

Effectiveness of vasectomy using cautery.

Mark A Barone1, Belinda Irsula, Mario Chen-Mok

  • 1EngenderHealth, New York, NY 10001, USA. mbarone@engenderhealth.org

BMC Urology
|July 21, 2004
PubMed
Summary
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Vasectomy by cautery is highly effective, with a rare failure rate of 0.8%. Relying on a 12-week semen analysis guideline for vasectomy success reduces failure risk compared to waiting for 20 ejaculations.

Area of Science:

  • Urology
  • Reproductive Medicine
  • Surgical Techniques

Background:

  • Limited evidence exists for optimal vas occlusion methods.
  • Emerging data suggest variations in effectiveness among different vasectomy techniques.
  • Cautery vasectomy effectiveness and sperm count trends require further investigation.

Purpose of the Study:

  • To estimate the effectiveness of vasectomy by cautery.
  • To analyze sperm count trends post-cautery vasectomy.
  • To determine time to success, predictive value of early results, and safety.

Main Methods:

  • Prospective observational study across 4 international centers (Nov 2001 - Jun 2002).
  • 400 men undergoing cautery vasectomy, followed for 6 months with early and frequent semen analyses.

Related Experiment Videos

  • Outcomes included effectiveness, sperm count trends, time to azoospermia, predictive value of 12-week results, and safety.

    • Main Results:

    • Overall semen analysis failure rate was 0.8% among 364 completers.
    • By 12 weeks, 96.4% achieved azoospermia or severe oligospermia (<100,000 sperm/mL).
    • A single 12-week severely oligospermic sample predicted final success with 99.7% accuracy; no pregnancies reported.

    Conclusions:

    • Vasectomy by cautery demonstrates high effectiveness with rare failure rates.
    • A 12-week semen analysis guideline is a reliable indicator of vasectomy success.
    • This guideline offers a reduced failure risk compared to the 20-ejaculation method in practical settings.