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Updated: Jan 30, 2026

Vessel-Sparing Microsurgical Longitudinal Intussusception Vasoepididymostomy to Treat Epididymal Obstructive Azoospermia
Published on: May 27, 2022
Single-Armed Longitudinal Intussusception Vasoepididymostomy in an Ex Vivo Rat Model With Video Demonstration
Yelena Akelina1, Jan B Lombaard2, Nicholas J Coleman1
1Simulation, Columbia University Vagelos College of Physicians and Surgeons, New York, USA.
This study presents a simplified microsurgical vasoepididymostomy (SA-LIVE) technique using single-armed sutures. This method enhances training accessibility and reproducibility for microsurgical skills development.
Area of Science:
- Urology
- Microsurgery
- Surgical Education
Background:
- Microsurgical vasoepididymostomy (VE) requires specialized training.
- Traditional techniques often rely on costly double-armed sutures, limiting practice accessibility.
- A simplified approach can improve training efficiency and reproducibility.
Purpose of the Study:
- To present a standardized, step-by-step technique for single-armed longitudinal intussusception vasoepididymostomy (SA-LIVE).
- To demonstrate the SA-LIVE technique using an ex vivo rat testis model for microsurgical skills training.
- To reduce reliance on expensive double-armed sutures in VE training.
Main Methods:
- A step-by-step protocol for SA-LIVE was developed using readily available single-armed 10-0 and 9-0 nylon sutures.
- The technique was demonstrated on an ex vivo rat testis model.
- A video demonstration was created to illustrate the microsurgical nuances and sequence.
Main Results:
- The protocol standardizes the longitudinal intussusception sequence for SA-LIVE.
- The ex vivo model and video demonstration facilitate clear comprehension and reproducibility of the technique.
- This method offers a cost-effective alternative for VE skills training.
Conclusions:
- The SA-LIVE technique provides a reproducible and accessible method for microsurgical training.
- This approach can enhance the learning curve for microsurgical vasoepididymostomy.
- Further adoption of SA-LIVE can improve surgical education in microsurgery.
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