title: Treatment of failed vasectomy reversal using a microsurgical two-layer anastomosis technique.
abstract: OBJECTIVE
  To evaluate the application of a microsurgical two-layer anastomosis technique in the treatment of failed vasectomy reversal.
  
  
  METHODS
  A microsurgical two-layer anastomosis was used in a series of 24 patients with confirmed anastomotic obstruction after previous vasectomy reversal. The patients were followed up for 9 months to 6 years, and the efficacy of the procedure was evaluated by regular seminal analysis and pregnancy records. The results were compared with those obtained from 34 patients who had received primary microsurgical vasovasostomy in our hospital using the same microsurgical technique.
  
  
  RESULTS
  In the treatment group for failed vasectomy reversal patients, the postoperative patency rate was 87.5% (21/24), resulting in a pregnancy rate of 54.2% (13/24). In primary reversal group, the postoperative patency rate was 94.1% (32/34), resulting in a pregnancy rate of 67.6% (23/34). Both the patency and pregnancy rate were not significantly different between these two groups.
  
  
  CONCLUSIONS
  The microsurgical vasovasostomy and vasoepididymostomy provided satisfactory patency rate and natural pregnancy rate for patients with a previous failed vasectomy reversal, which is comparable with the results of patients who had undergone primary procedure.
authors.affiliation: 1 Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China ; 2 Shanghai Medical College, Fudan University, Shanghai 200032, China ; 3 Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, China.
authors.forename: Bingkun
authors.initials: B
authors.lastname: Li
authors.affiliation: 1 Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China ; 2 Shanghai Medical College, Fudan University, Shanghai 200032, China ; 3 Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, China.
authors.forename: Guoling
authors.initials: G
authors.lastname: Chen
authors.affiliation: 1 Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China ; 2 Shanghai Medical College, Fudan University, Shanghai 200032, China ; 3 Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Wang
keywords: Vasectomy; microsurgery; vasectomy reversal
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