Interstitial cystitis (IC) is a severe, chronic inflammation of the bladder that's both disruptive and painful. Many more women than men suffer from the condition—of the 700,000 people with IC, 90% are female.
The symptoms of IC are notoriously variable and can differ from one person to another, or for one person from day to day. People with IC usually have an urgent and frequent need to urinate. They may experience recurring discomfort, tenderness, pressure, or intense pain in the bladder and surrounding pelvic area. This pain often intensifies as the bladder fills and may be exacerbated by sexual intercourse.
Certain foods may trigger symptoms; the most commonly mentioned include tomatoes, vinegar, spicy foods, coffee, chocolate, alcohol, and fruits and vegetables particular to the individual.
The cause of IC is unknown. Although its symptoms resemble a bladder infection, IC does not appear to be caused by bacteria. One theory proposes that IC is caused by an infectious agent that simply hasn't been detected yet. A different theory holds that IC is an autoimmune reaction; still another, that it is related to allergies. Because it varies so much in symptoms and severity, IC may be not one disease but several.
A variety of treatments are often tried alone or in combination before one is found that works. Oral antihistamines such as hydroxyzine (Atarax) and certirizine (Zyrtec) may provide relief, and the drowsiness they produce often wears off over time. Other medications used for IC include pentosan polysulfate sodium (Elmiron), pyridium, and anti-inflammatory drugs.
Distending the bladder by filling it to capacity with water for 2-8 minutes is frequently useful, but although the beneficial effects may persist for months, symptoms usually return eventually. In some cases, medications such as dimethyl sulfoxide and heparin may be introduced into the bladder with a catheter; actual surgical alteration of the bladder is rarely used to treat IC.
Other Proposed Treatments for Interstitial Cystitis
There are no well-documented natural treatments for interstitial cystitis, but a few supplements have shown promise.
The amino acid
A 3-month, double-blind trial of 53 individuals with interstitial cystitis found only weak indications that arginine might improve symptoms of interstitial cystitis.
A very small double-blind study also failed to find arginine more effective than placebo.
There is some evidence that in interstitial cystitis the surface layer of the bladder is deficient in protective natural substances called
Based on these highly preliminary findings, using of supplemental glycosaminoglycans in the form of mesoglycan or
Transcutaneous electrical stimulation, or TENS, is primarily used (with mixed results) in the treatment of muscular pain. It has also been tried in interstitial cystitis, but thus far the evidence that it works is highly preliminary.
Although there is no solid scientific evidence that dietary changes can relieve IC, many people find that certain foods increase their symptoms. The most frequently cited offenders are coffee, chocolate, ethanol, carbonated drinks, citrus fruits, and tomatoes.
Extremely preliminary evidence suggests that guided imagery may help some women with IC. In one study, listening to a script designed to focus attention on healing the bladder, relaxing the pelvic-floor muscles, and quieting the nerves specifically involved in IC showed some benefit. Without an adequate placebo comparison, though, it is questionable whether these improvements were significant.
11. Rodriguez LV, Janzen N, Raz S, et al. Treatment of interstitial cystitis with a quercetin containing compound: a preliminary, double-blind placebo control trial. Presented at: American Urological Association 2001 Annual Meeting; June 2–7, 2001; Anaheim, Calif.
Last reviewed April 2009 by EBSCO CAM Review Board
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