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    Urinary Incontinence Surgery

    Overview
    Causes
    Risk Factors
    Prevention
    Diagnosis
    Treatment
    Where To Seek Treatment
    Singapore General Hospital
    Contributed by SGH Urology Centre

    Overview

    Urinary incontinence is a condition where you are unable to control urination, such that urine is lost at the wrong time and place. During urination, the muscles in the wall of the bladder contract, forcing urine out of the bladder and into the urethra. At the same time, sphincter muscles surrounding the urethra relax, letting urine pass out of the body. Incontinence occurs if your bladder muscles contract suddenly or the sphincter muscles are not strong enough to hold back urine.


    Causes

    Bladder and sphinter musclesThere are many types of urinary incontinence.

    Urge incontinence is caused mainly by the presence of elements that irritate the bladder, such as the presence of urinary tract infection, bladder stones or even bladder tumours.

    Overactive bladder syndrome (OAB) is a diagnosis of exclusion where there are no identifiable causes irritating the bladder, yet there is a severe urge to empty the bladder.

    Stress urinary incontinence (SUI) is usually related to a weak pelvic outlet from previous trauma, multiple pregnancies, or undue repeated high abdominal pressure such as recurrent persistent cough, obesity or constipation.

    Overflow incontinence occurs when the bladder is very full but unable to empty, and is related to weak bladder contraction in diabetics or patients affected by stroke.


    Risk Factors

    Women who have had vaginal deliveries or are post-menopausal are at higher risk. You are also at risk if you are obese. Intake of irritants such as coffee or tea may worsen the problem.


    Prevention

    Pelvic floor exercises taught and practised early, before menopause, will help women reduce the risk of severe SUI in older age. Reducing intake of coffee and tea may reduce the symptoms of urge incontinence.


    Diagnosis

    The diagnosis is often obtained from a well-taken history and complete physical assessment. The latter gives the doctor an idea of your pelvic floor muscle tone and helps to exclude other diagnoses with similar symptoms.

    Tests to exclude urinary tract infection, stones and bladder tumours may be needed. In some people, urodynamic studies, a complex assessment of changes in bladder activity during filling and emptying, may be needed to confirm the diagnosis.


    Treatment


    Treatment strategies differ depending on the cause of the incontinence :

    1. Stress urinary incontinence


    Non-surgical options may include :

    Bladder retraining and pelvic floor exercises. These include Kegel exercises to strengthen the pelvic floor muscles that help hold in urine. If done correctly and diligently, it is able to improve the quality of life of at least 40-50 percent of women with SUI. The best results occur in the premenopausal age group, but older women can also benefit from this.

    Vaginal devices for stress incontinence. Such as a ring pessary that presses against the wall of the vagina and the nearby urethra. The pressure helps reposition the urethra, leading to less stress leakage.

    Surgical options may include :

    Collagen injections. Bulking agents, such as collagen, are injected near the urinary sphincter. As the body may over time slowly eliminate certain bulking agents, repeat injections may be needed.

    Surgery for Stress Urinary Incontinence (SUI). These are broadly classified into two categories :

    a. Retropubic suspension such as Burch colposuspension, where surgical threads called sutures are used to support the bladder neck.

    b. Sling procedures where slings of natural tissue or man-made mesh are used to support the bladder neck and urethra. The most common type in use today is tension-free vaginal tape (TVT).

    urodynamic study

     2. Urge incontinence and overactive bladder 

    Treatment options include :

    Removal of the irritant. This includes reducing the amount of coffee and tea intake.

    Medication. The first line of treatment are drugs called anticholinergics that block the nerve signals causing frequent urination and urgency, and bladder spasms. The main dose-limiting problem is the side effect of mouth and throat dryness. If you have glaucoma, ask your doctor if these drugs are safe for you.

    Injections for overactive bladder. Those who are unable to tolerate anticholinergics may be offered injection of botulinum toxin A into the bladder wall. Botulinum toxin relaxes the bladder muscles, reducing its overactivity.

    Neuromodulation. The stimulation of the nerves to the bladder leaving the spine (neuromodulation) can be effective in some for whom urge incontinence does not respond to behavioural treatments or drugs. However, the therapy is expensive, involving surgery with possible surgical revisions and replacement.



    Need indepth information ?

    Access our Conditions & Treatments sections for related topics on Pelvic Floor Repair and Urinary Incontinence.


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