Key Words: vesicovaginal fistulas, bladder fistulas, urinary fistulas, vaginal fistulas, surgical flaps, labor complications (J Pelvic Med Surg 2005;11:223-234) A review of the historic and world literature on urogenital fistula in women leaves one with 2 powerful realizations; the first is the remarkable suffering and enduring strength of women who are afflicted with urogenital fistulas, and the second is the ingenuity and the perseverance of the surgeons who have made this their life's work. In countries with modern obstetric care, most genitourinary fistulas form after gynecologic or urologic surgery. However, in nations without well-developed obstetric care, one to 2 of 1000 women experience genitourinary fistula as a complication from obstructed labor. 1 In Nigeria alone, almost 20,000 women with fistula await repair. Most of these women are young, illiterate, and become social outcasts after being abandoned by their husbands.J. Marion Sims' surgical innovations changed the lives of patients with fistulas worldwide when he reported the first series of successful fistula closures in 1852. Although his work has been criticized using modern ethical paradigms, 2 many of his surgical principles remain the foundation for fistula repair today. Since that time, genitourinary fistula repair has been "a history of skillful surgeons, influencing each other over time . . . in which change came, though often slowly." 3 Currently, the successful closure rate for primary vesicovaginal fistula repair is greater than 90% in the hands of specialized surgeons.The review that follows cannot do justice to the rich history of fistula repair, 3-5 but instead focuses on the modern approach to genitourinary fistulas, including etiology, diagnosis, operative procedures, and medicolegal issues.
ETIOLOGY OF GENITOURINARY FISTULASWhen obstetric care is not available, obstructed labor goes untreated, often resulting in genitourinary fistulas. The risk of fistula is further increased when the lack of medical care is compounded with early childbearing when a woman's pelvis is immature. 3 In an epidemiologic study from 1983 to 1988 of vesicovaginal fistula in Ethiopia, Kelly found that 97% of the vesicovaginal fistulas had an obstetric cause. 6 The majority of women affected were primigravidas who had unassisted vaginal delivery that lasted for a mean of 3.9 days. This tragedy is especially heartbreaking because the majority of women who experience obstetric vesicovaginal fistula do not have a live baby, with stillbirths occurring in 93% of the fistula-inducing deliveries. He also reported a high rate of concomitant injuries (probably neuromuscular) such that the mean time before a patient could walk again was 26 days.Obstetric vesicovaginal fistulas are associated with tissue necrosis and significant tissue loss. Waaldijk 1 characterized 1716 women with genitourinary fistulas who presented to a Nigerian fistula hospital during a 9-year period. Sixty percent of patients had fistulas Ն2 cm and 22% Ն6 cm. The majority (85%) involved