Screen for Urinary Incontinence and Manage in Primary Care

An estimated 25 million adult Americans experience temporary or chronic urinary incontinence.

Although urinary incontinence can occur in both women and men at any age, it is more common in women over age 50. According to Rise for Health, a national survey-based research study on bladder health, up to 40% of girls and women experience urinary problems and it may be as high as 50% or 60%.

“The main known predictors of urinary incontinence are age, obesity, diabetes, and pregnancy and childbirth,” said internist Joan M. Neuner, MD, MPH, a professor of women’s health at Medical College of Wisconsin, Milwaukee.

Other causes are urinary tract infections, pelvic surgery, and in men, of course, prostate problems. Medications such as antihypertensives and antidepressants can promote urinary incontinence. Inexplicably, smokers seem to be at higher risk. Childbearing is a prime reason women are at greater risk. “While C-section can be protective against many pelvic floor issues, vaginal delivery, particularly forceps assisted, increases the risk for urinary incontinence,” said Sarah Friedman, MD, director of the Division of Urogynecology at Staten Island University Hospital, New York City.

Urinary incontinence is underrecognized and undertreated in primary care and may not get enough emphasis in medical schools. Dr Neuner recently coauthored a small pilot study on developing a primary care pathway to manage urinary incontinence. It suggested that a streamlined paradigm from identification and patient self-care through basic medical care and specialty referral might assist primary care providers as first-line providers in urinary incontinence.

Urinary incontinence’s impact on quality of life should not be underestimated. “It depends on severity, but people may limit their physical activities and social activities, including work, going out with friends, and sexual activity, which can in turn increase loneliness and depression,” Dr Neuner said in an interview. “Incontinence products like pads and adult diapers are costly and often not covered by insurance.”

In fact, urinary incontinence costs US men and women more than $20 billion per year, mostly for management supplies such as pads and laundry.

Primary Care

While primary care practitioners are well positioned to manage urinary incontinence, the majority of patients remain untreated.

The current stepwise approach should start with a knowledge of basic micturition physiology to identify the incontinence type before selecting treatment, said Khaled A. Imam, MD, CMD, a geriatrician at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan. “More important, this working knowledge can prevent the prescription of an inappropriate treatment or drug, thus preventing many adverse effects,”

According to Dr Imam, urinary incontinence occurs “because the outlet is open when it should be closed, the outlet is closed when it should be open, the detrusor fails to contract, or the detrusor contracts when it should not.”

There are five main types of incontinence: transient, detrusor overactivity (urge), stress, overflow, and functional. The primary care evaluation of urinary incontinence should include history taking, physical examination, post-voiding residual volume measurement, urinalysis, and urine culture, according to Dr Imam. “The physical examination should include a urine stress test, abdominal examination, pelvic examination in female patients, rectal examination, and neurologic evaluation.”

Screening

“I am always careful before recommending additional screening that hasn’t been backed by a large screening study. Incontinence has not,” said Dr Neuner. “However, at most preventive visits, PC [primary care] doctors do a review of systems that includes common symptoms. And so if a PC is currently asking a more generic question like ‘any problems with urine?’ I recommend they replace it with the more specific ‘during the last 3 months, have you leaked any urine, even a small amount?’ “

Added Kathryn E. Flynn, PhD, a professor of medicine at Medical College of Wisconsin and Dr Neuner’s coauthor on the primary care pilot study: “Routine screening for urinary incontinence in primary care makes a lot of sense because most older women visit a primary care provider regularly, but they often don’t want to bring the topic up to their provider. When providers routinely screen, it can reduce that barrier to disclosure.”

Treatment

For many women, DIY measures such as losing weight, restricting badder irritants such as caffeine or alcohol, scheduled or double voiding, and at-home Kegel exercises are not enough. Fortunately, treatment options are expanding.

“Nonpharmacologic interventions such as pelvic physical therapy can strengthen the pelvic floor muscles and improve incontinence as long as the muscle strength is maintained,” said Dr Friedman. “Some procedural or surgical effects last long term and some are shorter acting and need to be repeated over time, but a medication’s effect on bladder function lasts only as long as you take it.”

Strengthening pelvic floor muscles. Solutions for stress incontinence – leakage during coughing, sneezing, lifting, or jumping – aim to hold the urethra closed in the face of increased pressure. “Strengthening the pelvic floor muscles can help hold the urethra closed, but many of us do not know how to contract our pelvic floor muscles correctly,” said Heidi Wendell Brown, MD, MS, a clinician researcher at Kaiser Permanente Southern California and a urogynecologist at Kaiser Permanente San Diego Medical Center. “Working with a pelvic floor therapist is not an option for many busy people, so devices that can be used at home to help women confirm they’re contracting their muscles correctly and remind them to do their exercises are becoming more popular.”

These trainers include external thigh exercisers and vaginal Kegel balls or weights. Kegel chairs that electromagnetically stimulate pelvic muscle contractions are another option, if more expensive. Some deliver pelvic therapy in clinic sessions, but there are several portable versions for home use available online.

According to Dr Neuner, “pelvic exercises can reduce incontinence by 50% or more. “Some women stay completely dry with them but many women will need help to do these and I usually recommend a referral to a pelvic floor physical therapist or someone with extensive experience.”

Drugs. Overactive bladder, or urge urinary incontinence, leads to leakage because the bladder muscle contracts strongly at inappropriate times. Anticholinergics/antimuscarinics such as oxybutynin (Oxytrol, Ditropan) have been used for decades to control these spasms by relaxing the bladder muscle. Because of recent concerns about their association with cognitive impairment after long-term use, these agents are now being used more cautiously, said Dr Brown. “A newer class of medication, the beta-3-adrenergic agonists, has not been shown to have that association with cognitive impairment and this class is now being used more frequently to treat overactive bladder.”

This class includes the beta-3-adrenergic agonists vibegron (Gemtesa) and mirabegron (Myrbetriq), which a recent Japanese crossover study found to be comparably effective in women with overactive bladder.

“While they have fewer safety concerns, these newer agents can be costly or may require lots of insurance paperwork, and while I hope that will improve soon, it hasn’t yet,” said Dr Neuner.

Another pharmacologic option is botulinum A toxin (Botox). Injected into the bladder, this neurotoxin can ease urgency and frequency by relaxing the bladder muscle, added Dr Friedman.

In some cases combination pharmacotherapy may be advisable.

Surgery. Mid-urethral slings are still considered the preferred option for stress urinary incontinence because they are minimally invasive, safe, and very effective, said Dr Brown. “Single-incisions slings are an emerging treatment for stress incontinence, because they require one incision instead of three, but their effectiveness has not been proven as robustly as that of the traditional mid-urethral slings,” Dr Brown said.

Urethral bulking. Bulking can reduce incontinence caused by straining as in defecation by thickening the wall of the urethra. This procedure uses a needle to inject a filler material such as collagen. “These injections are gaining more popularity as research uncovers filler materials that are more durable and with fewer potential complications,” Dr Brown said.

Neuromodulation. This technique works to reprogram communication between the nerves and the bladder. While conventional therapy worked by relaxing the bladder muscle itself, newer approaches target the nerve that controls the muscle. This can be done at home with gentle, acupuncture-like electric stimulation of the S3 sacral nerve.

“Traditional methods of stimulating the S3 nerve involved placing a needle in the ankle and delivering electrical stimulation via that needle in the doctor’s office, or placing a wire in the nerve near the spine and implanting a pacemaker to deliver electrical stimulation,” Dr Brown explained. “There are now emerging therapies that implant a device in the ankle to allow electrical stimulation of the S3 nerve in the home, providing a minimally invasive option that does not require weekly trips to the office.”

InterStim is a neural pacemaker that is inserted into the fat of the buttocks and patient controlled by a small handheld external device.

Biofeedback is a technique works for some. A patch applied to the skin over the bladder and urethra area and connected to an external monitor allows patients to see the bladder muscle contracting and teaches them to control spasms and prevent leaks.

Dr Neuner advises primary care doctors to connect with a local incontinence expert and refer patients to a specialist early on if their condition isn’t improving. “There are both surgical and nonsurgical treatments that only those specialists can give and that can be more effective if given before incontinence is severe — or before the patient has been so frustrated with other treatments that she doesn’t want to try anything else.”

When discussing potential outcomes with patients, Dr Friedman’s advice is to explain that each management option has different success rates. “Patients need to know that urinary incontinence is a very common condition, but it is not a condition you need to live with. There are many treatments available, all with the goal of improving quality of life.”

The primary care pathway pilot study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health. Study authors Dr Neuner and Dr Flynn disclosed no relevant conflicts of interest. Dr Friedman, Dr Imam, and Dr Brown disclosed no relevant conflicts of interest.

This article originally appeared on MDedge.com, part of the Medscape Professional Network.