[Spontaneous recanalization of the vas deferent after vasectomy: report of 2 new cases. Bibliographic review].
OBJECTIVE
Vasectomy is a low morbidity and high efficacy surgical method. A small percentage of cases may have paternity after surgery as a complication.


METHODS
We reviewed all patients who underwent vasectomy at our department from 1995 to 1999 (n = 1492), defining technical failure as pregnancy or no disappearance of spermatozoids in the follow-up sperm analysis.


RESULTS
We found 2 cases; one of them did not have a negative sperm test after three months, the other one's wife became pregnant after previous azoospermia. Both patients showed granulomas in the pathologic report after a second operation.


CONCLUSIONS
Vasectomy is a surgical technique that may have a failure rate close to 2%. Paternity after the operation may appear even after several years. Several authors report the existence of granulomas in those cases in which spontaneous recanalization appears. In our series it was a constant.
Cánovas Ivorra
José Antonio
JA
Servicio de Urología, Hospital General Universitario, Valencia, España. jacanovas@hotmail.com
Tramoyeres Galvañ
Alfredo
A
Sánchez Ballester
Francisco
F
Ramada Benlloch
Francisco
F
De la Torre Abril
Luis
L
Ordoño Domínguez
Felipe
F
Navalón Verdejo
Pedro
P
Zaragoza Orts
Julio
J
D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D017211:Treatment Failure; D014659:Vasectomy