Urinary Incontinence
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Direct answer
Cough-triggered leaking and urge-driven rushing are two different diseases wearing the same word: stress urinary incontinence is a sphincter problem that leaks with exertion, urgency urinary incontinence is a bladder problem that leaks on the way to the toilet, and mixed incontinence borrows both. Classification comes first — bladder diary, cough stress test and post-void residual — then treatment follows the type: supervised pelvic floor muscle training for at least three months before any surgery for stress incontinence, bladder training plus antimuscarinics or beta-3 agonists for urgency incontinence, and definitive surgery reserved for failures. The mid-urethral sling is the reference operation for female stress incontinence; the artificial urinary sphincter for the man leaking after prostate surgery.
What you must remember
- Assessment set: frequency-volume bladder diary, cough stress test, post-void residual by ultrasound, and urinalysis to exclude infection before any label is written.
- Conservative first: weight loss of five to ten per cent meaningfully reduces episodes in overweight women; supervised pelvic floor training for at least three months precedes surgery for stress incontinence.
- Mid-urethral slings: retropubic (TVT) and transobturator (TOT) tapes both cure roughly 80 to 90 per cent — retropubic carries more voiding difficulty and bladder injury, transobturator more groin pain; mesh requires explicit, documented counselling in the current medico-legal climate.
- Surgical alternatives: Burch colposuspension, autologous fascial slings, and bulking agents with the lowest durability for the frail patient.
- Male stress incontinence after radical prostatectomy: pelvic floor training first for up to a year, then the artificial urinary sphincter — cuff around the bulbar urethra, pressure balloon, scrotal pump — for moderate to severe leaks; slings suit milder cases.
- Urgency pharmacology: antimuscarinics (dry mouth, constipation, cognitive caution in the elderly) versus mirabegron or vibegron (beta-3 agonists, watch blood pressure); intradetrusor botulinum toxin 100 units for refractory cases, accepting that a minority will need to self-catheterise.
- Overflow incontinence masquerades as urgency — always check the residual before prescribing an antimuscarinic, or the drug converts retention into an emergency.
One woman's leak, worked through properly
A 48-year-old mother of three leaks when she laughs, coughs and skips; no nocturia, no urgency. The diary shows normal volumes; the cough stress test reproduces the leak; residual is 30 mL — uncomplicated stress urinary incontinence. Step one is supervised pelvic floor training, at least three months of correctly taught contractions, plus weight talk where relevant; a third of motivated women stay dry on this alone. She returns at six months still leaking on the trampoline: surgical counselling. The two tapes are laid out honestly — comparable cure, trading bladder injury and voiding difficulty against groin pain — with mesh counselling documented and the autologous sling and Burch colposuspension named. Contrast her neighbour with the racing-to-the-toilet, voiding-eight-times-a-day picture: that woman gets bladder training, fluid normalisation and an antimuscarinic or mirabegron, escalating to botulinum toxin only after drugs fail, with consent for possible self-catheterisation. Were she 82 with dementia, the antimuscarinic would be chosen reluctantly if at all.
Where the exam plants its traps
The prescription trap recurs: frequency and urgency in an elderly man, options include an antimuscarinic — but the buried clue is a palpable bladder or residual of 300 mL, making overflow from obstruction the answer and the antimuscarinic harmful. The timing trap: surgery offered before three months of supervised pelvic floor training — the conservative rung is examinable precisely because it is skipped in practice. The male trap: post-prostatectomy leaking at three months referred for a sphincter — the correct answer is continued pelvic floor training for up to twelve months, because most recovery occurs in the first year. And the classification trap: new urgency with haematuria flags urinalysis and imaging before overactive bladder treatment, since pathology presenting as "urgency" is the diagnosis you cannot afford to soothe with solifenacin.
Frequently asked questions
What is first-line treatment for stress urinary incontinence?
Supervised pelvic floor muscle training for at least three months, combined with weight reduction where relevant. Only failure after adequate conservative therapy moves a woman toward mid-urethral sling surgery.
How do retropubic and transobturator tapes differ?
Both cure roughly 80 to 90 per cent of stress incontinence. The retropubic route risks bladder injury and voiding difficulty; the transobturator route trades those for groin pain.
When is botulinum toxin used for urgency incontinence?
After conservative measures and antimuscarinic or beta-3 therapy have failed. One hundred units intradetrusor relieves urgency for six to nine months, with a small but real risk of retention requiring clean intermittent self-catheterisation.
How is post-prostatectomy incontinence managed?
Pelvic floor training first, continued for up to a year as most recovery is spontaneous. Persistent moderate-to-severe stress incontinence is treated with an artificial urinary sphincter; milder leaks may suit a male sling.
Which antimuscarinic caution applies in the elderly?
Cognitive impairment and delirium risk, particularly with more lipophilic agents — mirabegron or vibegron are preferred alternatives, with blood pressure monitored. Always exclude retention, infection and — where haematuria or rapid onset is present — bladder pathology before prescribing.