<prompt> Transperitoneal approach to repair genitourinary fistula is used in all situations exceptFistula closer to ureteral orifices.Con-comitant ureteric and vesicovaginal fistula.Fistula located proximally in a narrow vagina.Non-complicated small vesicovaginal fistula.  <response>: Transperitoneal approach of repair is preferred in complex large fistulas. 