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Yale-New Haven Hospital, New Haven, Connecticut, USA HealthLINK: Women's Health
December 1, 2003

News this month
Evaluating treatment for stress urinary incontinence

Millions of women accidentally lose urine. When this accidental loss happens enough to be a problem, it is called urinary incontinence. There are different types of urinary incontinence. The three most common forms are stress, urge and mixed incontinence.

Stress incontinence…is the most common type of urinary incontinence among women of reproductive age.

Stress incontinence
Stress incontinence is involuntary urine loss when a woman coughs, sneezes, jumps, runs or performs any physical activities that put pressure on her bladder. The urine loss usually occurs in spurts and happens almost simultaneously with physical activities. This is the most common type of urinary incontinence among women of reproductive age.

Urge incontinence
Urge incontinence is characterized by involuntary urine loss immediately after feeling the urge to void. Urine loss may be triggered by specific events such as putting hands in cold water or hearing running water. The amount of urine loss is usually sufficient to wet through a woman’s underwear. Women with urge incontinence may also experience urgency (having to rush to the bathroom as soon as she feels the urge to void), frequency (voiding more than eight times per day) and nocturia (waking up more than twice every night to void).

Mixed incontinence is when a woman experiences both stress and urge urinary incontinence.

The good news is that most cases of incontinence can be cured.

Treatment for urinary incontinence
The good news is that most cases of incontinence can be cured. Treatment depends on the type of urinary incontinence. Several noninvasive techniques have been used to treat stress incontinence, but for some women, surgery presents the best long-term solution.

Usually, the most important factor to consider when selecting a surgical procedure to treat stress urinary incontinence is its long-term cure rate. The most reliable information one can use to determine which surgical procedure has the best long-term cure rate is objective data from randomized, controlled trials. One of the best places to obtain this type of information is from the Cochrane Library.

Cochrane Library findings
The Cochrane Library publishes a collection of evidence-based medicine databases four times a year. In its third issue of 2003, the library presented a review, that compared the effectiveness of different surgical procedures frequently used to treat stress incontinence. This review included 33 randomized, controlled trials involving 2,403 women.

A surgical procedure called retropubic colposuspension
…is the most effective procedure for treating stress urinary incontinence.

It concluded that a surgical procedure called retropubic colposuspension, performed through an abdominal incision, is the most effective procedure for treating stress urinary incontinence, especially in the long term. Within the first year of surgery, the overall success rate was 85 to 90 percent. After five years, about 70 percent of women were still continent.

Retropubic colposuspension
Retropubic colposuspension attaches tissue adjacent to the urethra and/or the bladder to a sturdy structure in the pelvis. It can be performed in two ways. When the vaginal tissue is tacked to the back of the pubic bone, the procedure is called Marshall-Marchetti. When the vaginal tissue is suspended to the side of the pelvis, the procedure is called Burch.

The Burch procedure can also be performed using a minimally invasive approach through a laparoscope. The minimally invasive approach, which is performed through three or four 1-2 cm incisions, enables women to recover faster, but a Cochrane Library review concluded that there are insufficient data to determine its long-term effectiveness.














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Eddie H.M. Sze, MD portrait

Incontinence treatments tailored to each patient

Many people think urinary incontinence is an uncommon and unusual problem that affects only a small number of elderly or disabled women. We recently found that about 35 percent of all women who came to our office for routine gynecological care have urinary incontinence.

“Urinary incontinence is not a normal condition regardless of your age or health.”

Two out of every three affected women have not sought treatment for a number of reasons—because they were embarrassed, hoped their incontinence would improve by itself, were afraid they might need surgery or erroneously believed incontinence is a normal condition of aging.

Urinary incontinence is not a normal condition regardless of your age or health. It can be devastating psychologically as well as socially, emotionally and physically. Studies have found that up to 60 percent of women reported urinary incontinence affects their daily lives, 40 percent believed it interferes with their sexual function, 75 percent thought it affects their mental health and 20 percent concluded it makes their life intolerable.

Fortunately, there are treatments that can cure urinary incontinence and restore a woman’s quality of life. Stress urinary incontinence can be treated with nonsurgical and surgical methods.

Nonsurgical approaches
Muscle strengthening or Kegel exercises make a woman’s pelvic floor muscles stronger. The stronger pelvic floor muscles compress the urethra more effectively to prevent or lessen urine loss when the woman coughs or does anything strenuous. Several studies have found that approximately 50 percent of women treated with Kegel exercises either were cured or experienced significant improvement in their incontinence.

Kegel exercises
Kegel exercises are much more effective when they are taught by a trained physical therapist, reinforced weekly in a class for three to six months and practiced daily at home. Verbal or written instructions alone cause 30 percent of the women to contract the wrong muscles, which frequently makes incontinence more severe.

Kegel exercises are sometimes taught using some form of biofeedback. Biofeedback involves the use of visual or audio signals to let a woman know she is contracting the pelvic floor muscles. It may help a woman learn to contract the proper pelvic floor muscles; however, biofeedback probably does not increase the effectiveness of Kegel exercises in curing stress incontinence.

Vaginal cones
For women who are unable to master Kegel exercises, vaginal cones are an alternate approach. Vaginal cones are small cylinders of incremental weights that are placed in the vagina. The cones make a woman identify and exercise the proper muscles through trial and error since she can only retain the cone in her vagina by contracting her pelvic floor muscles. A Cochrane Library review concluded that vaginal cones seem to have similar efficacy as Kegel exercises in treating stress urinary incontinence.

Collagen injections
Collagen injections underneath the lining of the urethra are another option for women with stress incontinence due to a weak urethra. The injections narrow the lumen of the urethra, which allows a woman to close the urethral opening more easily and prevent or lessen urine loss. Injections may be performed in the office or operating room. The benefit usually lasts for several months and may last as long as one or two years. When incontinence recurs, collagen injections may be repeated, but each subsequent injection may become more difficult to perform.

Surgical approaches
Surgical procedures used to treat stress urinary incontinence include anterior repair, transvaginal needle suspension, suburethral sling, tension-free vaginal tape (TVT) and retropubic colposuspension.

Anterior repair
Anterior repair is performed vaginally through an incision in the anterior (upper) wall of the vagina. It tightens the vaginal wall and puts the bladder back in its normal position. It is easy to perform, does not require an abdominal incision, and has a short recovery time.

Transvaginal needle suspension
Transvaginal needle suspension is performed through a small vaginal and abdominal incision. It suspends the vaginal tissue adjacent to the urethra and bladder to the anterior abdominal wall. In two separate reviews, the Cochrane Library concluded that anterior repair and transvaginal needle suspension are probably not as effective as retropubic colposuspension in curing stress urinary incontinence.

Suburethral sling
Suburethral sling is performed through a small incision in the vagina and abdomen. In this procedure, a piece of synthetic or donor tissue is used to form a supportive hammock around the bladder neck (the area where the urethra enters the bladder) to prevent urine loss. Two ends of the tissue are then sutured to the anterior abdominal wall. A Cochrane Library review concluded that there are insufficient data to determine whether suburethral sling is more, less or just as effective as other surgical procedures in treating stress urinary incontinence.

Tension-free vaginal tape (TVT)
Approximately six years ago, a new surgical procedure, called tension-free vaginal tape (TVT), was introduced. This procedure is performed through a small vaginal and two small abdominal incisions. TVT involves placing a narrow strip of synthetic material around the middle of the urethra. A Cochrane Library review found that on a short-term basis, TVT seems to be just as effective as retropubic colposuspension in curing stress incontinence; however, its long-term cure rate is still unknown.

“If a woman does not have a treatment preference, we usually recommend undergoing nonsurgical therapy first.”

Individual choices determine treatment
We base our treatment for stress urinary incontinence on each woman’s individual preference. Some women prefer nonsurgical therapy; others request surgery; a few just want the reassurance that their incontinence is not caused by cancer. We make sure each woman is fully aware of all the available treatment options and understands the advantages and disadvantages of each. We then help her choose a treatment that matches her comfort level, which includes supporting a choice of no treatment.

If a woman does not have a treatment preference, we usually recommend undergoing nonsurgical therapy first. For women who do not respond to nonsurgical therapy or prefer surgical treatment, we usually recommend retropubic colposuspension performed through an abdominal incision because it has the highest long-term cure rate. This surgery, however, requires a two-day hospital stay and four to six weeks to recover.

For older women, a shorter operating time and quick recovery may be more important. In these cases, we frequently recommend TVT. We thoroughly discuss the advantages and disadvantages of this relatively new procedure—specifically the lack of data on long-term outcomes—with each patient before surgery. Most important, treatment of any kind should be tailored to each individual.

We encourage anyone whose daily activities and quality of life are being affected by urinary incontinence to talk to her health care providers about what treatment options might be most appropriate for her.


Dr. Sze is chief of Yale-New Haven Hospital’s section of urogynecology and reconstructive pelvic surgery. He is also an associate professor of obstetrics, gynecology, and reproductive sciences at the Yale University School of Medicine.


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