Stress Urinary Incontinence
A 54-year-old woman, para 4 with all vaginal deliveries, reports involuntary urine loss whenever she coughs, laughs or lifts her grandchild. She has no urgency, nocturia or dysuria. She has completed 6 months of supervised pelvic floor muscle training without improvement. The cough stress test is positive with urethral hypermobility and no prolapse beyond the hymen. Post-void residual volume is 25 mL. What is the most effective definitive treatment?
- A.Anterior colporrhaphy with Kelly plication
- B.Vaginal pessary insertion
- C.Midurethral synthetic slingCorrect
- D.Oral oxybutynin therapy
Explanation
This woman has pure stress urinary incontinence with urethral hypermobility that has failed adequate conservative therapy, so surgery is the next step. The midurethral synthetic sling, placed retropubically or transobturator, is the most effective and best studied surgical option, with cure rates of about 80 to 90 percent at 5 years and shorter operative time and recovery than open surgery. It works by providing a backboard of support at the midurethra so that rises in intra-abdominal pressure compress the urethra rather than forcing urine out. Burch colposuspension is the traditional alternative with comparable long-term efficacy and remains a good choice when the abdomen is already being opened, but it is more invasive. A pessary or continence device can reduce leakage and is useful for women who decline or are unfit for surgery, yet it manages rather than cures the problem and requires ongoing maintenance. Kelly plication of the bladder neck has substantially lower long-term cure rates than sling or colposuspension and is no longer recommended as a primary continence procedure. Antimuscarinics such as oxybutynin treat urgency incontinence from detrusor overactivity and have no role in pure stress incontinence, and their anticholinergic burden may cause dry mouth, constipation, and cognitive effects. Always exclude infection, high post-void residual, and a mixed or overflow picture before offering continence surgery, as this patient's normal urinalysis and residual volume allow.
Why each option
- A.
- Kelly plication has markedly inferior long-term continence rates than slings or colposuspension and is not the procedure of choice.
- B.
- A pessary or continence device is a reasonable non-surgical adjunct but manages symptoms rather than curing them and needs regular maintenance.
- C.
- Correct. A midurethral sling gives the highest durable cure rate for stress incontinence with urethral hypermobility after failed pelvic floor training.
- D.
- Oxybutynin targets detrusor overactivity in urgency incontinence and provides no benefit in pure stress incontinence.
Reference: UpToDate 2025, Surgical management of stress urinary incontinence in women
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