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Experience with vasal sperm aspiration
1Department of Urology, Rush-Presbyterian-St. Luke's Medical Center, Chicago, Illinois, USA.
The Journal of Urology
|April 29, 1998
Summary
Vasal sperm aspiration is effective for azoospermia due to neurogenic anejaculation or vasal obstruction. This method yielded good sperm quality and a 50% pregnancy rate with assisted reproductive techniques.
Area of Science:
- Reproductive Medicine
- Urology
- Andrology
Background:
- Azoospermia, characterized by the absence of sperm in ejaculate, presents a significant challenge in male infertility.
- Causes include neurogenic anejaculation and obstruction of the vas deferens, often requiring advanced reproductive techniques.
- Established methods like electroejaculation may have limitations or contraindications.
Purpose of the Study:
- To evaluate the efficacy and outcomes of vasal sperm aspiration in patients with azoospermia.
- To assess sperm yield, quality, and subsequent pregnancy rates using this technique.
Main Methods:
- Vasal sperm aspiration was performed in 15 instances across 11 patients.
- Patients had azoospermia secondary to neurogenic anejaculation or vasal obstruction.
- Sperm obtained was utilized for assisted reproductive techniques or cryopreservation.
Main Results:
- All 15 aspirations successfully yielded adequate sperm.
- Average sperm count was 42 x 10^6, with average motility of 73.4%.
- Assisted reproductive techniques resulted in a 50% (6/12) pregnancy rate.
Conclusions:
- Vasal sperm aspiration is a viable alternative when electroejaculation is not feasible or contraindicated.
- It offers superior sperm quality and pregnancy rates compared to electroejaculation with intrauterine insemination.
- However, vasal aspiration is technically more complex and expensive.