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1.

Introduction

Female urethral stricture (FUS) is an uncommon condition.

Although its true incidence is largely unknown, it appears to

be relatively low

[1] .

There is a certain controversy about its etiology, which is

largely due to the rarity of the disease. Multiple factors,

including infection, trauma, instrumentation, and prior

urethral surgery may be implicated.

There is no standardized definition or diagnostic criteria

for urethral stricture in women. The majority of published

studies perform a multitude of tests, and no author relies

on just one investigative modality. Therefore, making

an accurate diagnosis requires a high index of suspicion

because the presentation is often nonspecific.

Once FUS is diagnosed, there are two main treatment

methods: (1) urethral dilatation, and (2) urethroplasty

augmentation. In the case of the latter, this includes vaginal

and labial flap and graft urethroplasty, as well as oral graft

urethroplasty

[2–9]

. However, there are no indications as to

which procedure to use for each case, and therefore it is

usually dependent on the surgeon’s expertise and personal

preference.

The success rates of the different procedures have also

been poorly described in the literature, and its follow-up is

usually of short duration. In general, meaningful outcome

procedures have not been used

[10]

.

One of the most commonly used treatment methods is

the Blandy technique, popularized by McGuire et al

[11]

.

This technique implies that the U-shaped vaginal wall flap is

inverted onto itself, making it a relatively simple procedure

with minimal morbidity. However, in our initial experience,

the technique results in a retrusive meatus and an inward

urinary stream.

The aim of this study is to present our experience on the

etiopathogenesis, diagnosis, and surgical management with

an alternative vaginal flap technique in a group of women

diagnosed with FUS at our institution, analyzing its safety,

effectiveness, and long-term outcome.

2.

Patients and methods

2.1.

Study population

A cross-sectional observational study was performed in a single

University Hospital. Nine female patients were diagnosed with urethral

stricture at our institution from 1999 to 2015, and had undergone open

surgery. These patients were contacted and agreed to undergo a follow-

up medical examination, signing an informed consent.

2.2.

Preoperative evaluation

A standard preoperative evaluation was performed in all the patients,

including medical history, physical examination, urine culture,

flowmetry, postvoid residual urine measurement, urethral calibra-

tion, and voiding cystourethrography. Urodynamics and cystoscopy

was performed in cases where urethral caliber was superior to

14 Fr.

2.3.

Surgical procedure

A ventral lateral-based anterior vaginal wall flap urethroplasty was

performed, based on Orandi’s technique for male strictures

[12]

. After

intradural anesthesia, the patient was placed in a dorsal lithotomy

position. Then, urethral catheterization with a Foley 8-Fr catheter was

performed, or with a guidewire when the former was not possible. A

midline anterior vaginal wall incision was then carried out

( Fig. 1

A),

followed by its mobilization. The side where the flap was to be taken

from was dissected, preserving as much vascularization as possible.

Then, the urethra was incised ventrally from the meatus to the point

where the stricture was completely open

( Fig. 1 B

).

A rectangular-shaped piece of vaginal wall was then selected,

depending on the length and caliber of the stricture

( Fig. 1 C

). After

mobilizing the outer external flap border, where a wide axial vascular

pedicle remains, the vaginal flap was then sutured to the margins of the

urethrotomy defect with an interrupted 3-0 polyglactin absorbable

suture. The inner vaginal flap was sutured to the closest urethral margin

( Fig. 1 D

). The outer vaginal edge was turned around and sutured to the

contralateral edge

( Fig. 1 E

). In cases where the meatus was not

strictured, the vaginal flap was carried down just to this limit.

Afterwards, the meatus was closed, remaining in an orthotopic position.

Finally, the vaginal mucosa was attached with a 2-0 Vicryl-rapid suture

( Fig. 1 F

). The patient was discharged from hospital within 24 h.

Antibiotics were given to the patients for 5 d and a Foley catheter

was maintained for 3 wk. Intravaginal estrogens were applied

preoperatively to two postmenopausal patients for 3 mo.

2.4.

Postoperative follow-up

During the last postoperative review, symptom assessment, physical

examination, flowmetry, postvoid residual urine measurement, and

urethral calibration were performed. Personal assessment of the success

of the surgery was performed using the Perception Global Impression of

Improvement questionnaire (PGI-I) during this visit. The PGI-I question-

naire is a self-administered questionnaire based on an analogue scale

with seven questions regarding the current status compared with that

prior to treatment, ranging from excellent to poor.

Complications of the procedure was assessed from the patients’

medical records and directly from the patient during the last visit, and

classified according to the Clavien-Dindo classification

[13]

.

2.5.

Data analysis

A descriptive statistical assay was performed. A nonparametric test (sign

rank test) was used to compare the peak flow before and after surgery.

The effect of the surgical procedure was determined by median

differences and ratios.

3.

Results

Eight women agreed to undergo a medical review. One

woman had died 5 yr after the urethroplasty due to an

unrelated disease. This patient had performed a clinical

review 2 mo before death. The mean age at the time of

surgery of the studied group was 56 yr (41–78 yr). The mean

follow-up was 80.77 mo (12–198 mo).

The average time of onset of symptoms was 12 yr

(3–30 yr) prior to surgery. The symptoms appeared in four

of the patients after a bladder catheterization (three from

surgery and one after complications while giving birth). The

remaining patients manifested FUS for unknown reasons,

although two patients described having complicated labors.

E U R O P E A N U R O L O G Y 7 3 ( 2 0 1 8 ) 1 2 3 – 1 2 8

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