A 52 year old lady with a vesicovaginal fistula after abdominal hysterectomy is not responding to conservative management. Most useful and impoant next investigation is:
The most valuable investigation in an established case of a vesicovaginal fistula should be cystoscopy. Ref: Female Pelvic Health and Reconstructive Surgery By Carlin and Leong, 1st Edition; Minute Obstetrics and Gynecology consult, 2008, Page 210; Urogynecology and Female Pelvic Reconstructive Surgery : Just the Facts By Sam Siddighi, Jeffrey S. Hardesty, Page 190.
Triple Swab Test
Urine culture
Cystoscopy
IVP