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Choo, Cheon, Park, Ji, and Moon: A New Method of Vasovasostomy with the Prolene Stent
Original Article
Sexual Dysfunction/Infertility
Korean Journal of Urology

Korean Journal of Urology 2009; 50(4): 375-379.

Published online: 27 April 2009

DOI: https://doi.org/10.4111/kju.2009.50.4.375

A New Method of Vasovasostomy with the Prolene Stent

Hyun Soo Choo, Sang Hyeon Cheon, Sungchan Park, Young Hwan Ji, Kyung Hyun Moon

Department of Urology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.

Correspondence to: Kyung Hyun Moon. Department of Urology, Ulsan University Hospital, University of Ulsan College of Medicine, 290-3, Jeonha-dong, Dong-gu, Ulsan 682-714, Korea. TEL: 052-250-7190, FAX: 052-250-7193, urofirst@uuh.ulsan.ac.kr

Received 10 October 2008       Accepted 3 March 2009

Copyright © The Korean Urological Association, 2009

Abstract

Purpose

The methods for vasovasostomy are varied, and many authors have reported various success rates. This study aimed to assess a new method for vasovasostomy with a Prolene stent.

Materials and Methods

Among 85 patients who underwent vasovasostomy with a Prolene stent, 69 patients were retrospectively reviewed at our hospital between October 2004 and December 2007. The average age at the time of vasovasostomy was 42.2 years (range: 24.0-52.0 years). The obstructive interval was 6.25 years (range: 0.7-20.0 years). The cases were divided into 2 groups according to obstructive interval: group A (above 8 years) and group B (8 years and less), with 18 (26.1%) and 51 (73.9%) cases, respectively. Patency was defined as a sperm concentration of more than 10×106/ml on semen analysis.

Results

The overall patency and pregnancy rates were 76.8% and 43.4%, respectively. The patency and pregnancy rates of group A were 61.1% and 33.3%. Those of group B were 82.3% and 47.0%. The mean duration to pregnancy was 10.9 months (range: 4-31 months). The mean operation time was 90.2 minutes (range: 50.0-165.0 minutes).

Conclusions

The new method of vasovasostomy with the Prolene stent has good efficacy and safety. Its benefits are the maintenance of good patency, a good pregnancy rate, and a diminished operating time.

Keywords: Vasovasostomy, Stents, Pregnancy

Figures and Tables

Fig. 1
The photograph showed a new method of vasovasostomy with prolene stent. The prolene 3-0 suture was inserted in a distal end of vas deferens and penetrated to a proximal end (A). Both ends of the vas deferens were approximated with four nylon 6-0 sutures overlying the prolene 3-0 stent (B).
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Table 1
Patients characteristics
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Table 2
The result of operation associated with various factors
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Table 3
Results of patency and pregnancy rates to related to the time of vasal obstruction
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