© Borgis - New Medicine 4/2012, s. 122-124
*Agnieszka Ledniowska1, Grzegorz Ledniowski2, Jarosław Karoń1, Przemysław Karoń1
An evaluation of the efficiency of different surgery techniques in the treatment of vesicovaginal fistulas – own experience
1Gynaecology-Maternity Ward, ZOZ Kędzierzyn-Koźle Public Hospital, Poland
Supervisor: Jarosław Karoń, MD
2Urology Ward, ZOZ Kędzierzyn-Koźle Public Hospital, Poland
Supervisor: Andrzej Trondowski
Aim. An evaluation of the efficiency of different surgery techniques in the treatment of vesicovaginal fistulas, based on own experience.
Material and methods. In the years 2008-2012, at the Gynaecology-Maternity Ward of the Kędzierzyn-Koźle Public Hospital, 7 patients were operated on due to the development of primary and recurrent vesicovaginal fistulas after abdominal hysterectomy. The patients were operated on vaginally and the operation technique was matched to the location and the size of the fistula.
Results. In 6 patients, the vesicovaginal fistula was closed after only one operation. In 1 patient, a recurrence of the fistula was observed, so the patient needed further corrective surgery.
Conclusions. All of the patients were treated successfully. Both primary and recurrent fistulas can be successfully closed vaginally. Postoperative estrogen therapy in patients operated on vaginally precipitated the healing of postoperative lesions.
Vesicovaginal fistulas are a rare but very discomforting complication. The continuous discharge of urine through the vagina causes irritation of the perineal area and inflammations. It significantly degrades the quality of patients’ lives, at times hindering normal functioning in society. The main cause of the occurrence of fistulas between the urinary and genital tracts is prolonged, complicated birth (1). In developed countries, the majority of vesicovaginal fistulas occur after gynaecological and obstetric surgeries and radiotherapy (2).
Vesicovaginal fistulas occurring after gynaecological surgeries are related in 70% of cases to the removal of the uterus (2, 3). The incidence after uterus removal is 1 in 1800(4).
Radiotherapy, the highly effective method of treatment of genital tract neoplasms carries the risk of complication in the form of postradiation fistula (5, 6). Such fistulas occur due to exceeding the critical dose for the urinary bladder.
Other treatments significantly increasing the risk of occurrence of vesicovaginal fistulas are: restorative surgery of the front vaginal wall, transvaginal hysterectomy.
The evaluation of effectiveness of various techniques of treatment of vesicovaginal fistulas.
PATIENT AND METHODs
The analysis included 7 patients operated on in the ZOZ Kędzierzyn-Koźle Public Hospital in the period 2008-2012 jointly by doctors of the Gynaecology-Maternity Ward and doctors of the Urology Ward. The patients were operated on for primary and recurrent vesicovaginal fistulas. All of the fistulas had occurred after abdominal hysterectomy. Five of the fistulas were primary. Two were recurrent fistulas, each of them three times closed unsuccessfully through abdominal or vaginal routes. The average age of the patients operated on was 54 years. Before surgery, gynaecological and urological diagnoses were performed on each patient. All patients were subjected to a gynaecological examination with a vaginal speculum, during which methylene blue was administered into the urinary bladder, in order to confirm the diagnosis. In all of the patients cytoscopy was performed before and after the surgery.
All of the patients were operated on via the vaginal route. The average duration of surgery was 110 minutes. The Foley catheter was removed from the bladder on the 14th day after surgery.
The patients were qualified for surgery depending on the diameter of the vaginal orifice of the fistula duct and the location of the vesicovaginal fistula in relation to the external urethral orifice (6). The fistulas were classified as shown below.
Vesicovaginal fistulas are divided into the following, depending on the vaginal orifice diameter:
– simple, with the orifice diameter below 0.5 cm
– complex, with the orifice diameter larger than 2.5 cm
– intermediate, with the orifice diameter between 0.5 cm and 2.5 cm
The Goh classification divides vesicovaginal fistulas into 4 types (7):
Type 1– the vaginal fistula opening is located at more than 3.5 cm from the external urethral orifice
Type 2 – the vaginal fistula opening is located at 2.5-3.5 cm from the external urethral orifice
Type 3 – the vaginal fistula opening is located at 1.5-2.5 cm from the external urethral orifice
Type 4 – the vaginal fistula opening is located at less than 1.5cm from the external urethral orifice
Three operating techniques were used in the treatment.
A surgery using the Sims technique with the Moir modification was performed on one patient. The fistula was classified as primary, simple (< 0.5 cm), Goh type 1. The operating technique involved longitudinal incisions 0.5 cm upward and downward from the fistula. The vaginal wall and the entire cicatricial fibrous tissue are excised downward, so that the excision does not include the mucous membrane of the urinary bladder. The vaginal walls are not separated from the urinary bladder walls. The edges on both sides are pulled together by applying single vertical mattress sutures from top to bottom. The patient was treated successfully.
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