[Vesicovaginal fistulas: correction using lyophilized dura mater]

Thirty three cases of surgically corrected vesicovaginal fistulae, from a total of 73 patients with iatrogenic or pathological urinary tract conditions examined and treated in our service, are presented in this paper. Both the etiology and different surgical techniques that can be used are reviewed, contributing the novelty use of freeze dried dura mater as the material to interpose for the correction of the fistulae by means of abdominal surgical techniques. The material was used in 6 patients, with recovery being obtained in all cases and achieving the fistulae closure with a single surgical procedure.