Irritable Bowel Syndrome (IBS) is a gastrointestinal disorder that affects 7-16% of the U.S. population, adding somewhere between $950 million to $1.35 billion annually to the nation's healthcare bill. IBS, which is characterized by chronic abdominal pain, discomfort, bloating, diarrhea or constipation, is classified as a disorder of the 'brain-gut axis'.
Although no cure is known, there are treatments to relieve symptoms including dietary adjustments, medication and psychological interventions. For some time doctors have known that psychological therapies can reduce the symptoms of irritable bowel syndrome in the short term.
‘The beneficial effects of psychological therapy, including cognitive therapies, relaxation and hypnosis, in irritable bowel syndrome appear to last at least six to 12 months after the therapy has concluded.’
AdvertisementA new meta-analysis, published online in Clinical Gastroenterology and Hepatology, has now revealed that the beneficial effects of psychological therapy also appear to last at least six to 12 months after the therapy has concluded. The study analyzed the results of 41 clinical trials from a number of different countries containing more than 2,200 patients.
Senior author Lynn S. Walker, professor of pediatrics at Vanderbilt University Medical Center, said, "Our study is the first one that has looked at long-term effects. We found that the moderate benefit that psychological therapies confer in the short term continue over the long term. This is significant because IBS is a chronic, intermittent condition for which there is no good medical treatment."
First author Kelsey Laird, a doctoral student in Vanderbilt's clinical psychology program, said, "Western medicine often conceptualizes the mind as separate from the body, but IBS is a perfect example of how the two are connected. Gastrointestinal symptoms can increase stress and anxiety, which can increase the severity of the symptoms. This is a vicious cycle that psychological treatment can help break."
The studies that Laird analyzed included a number of different types of psychological therapies, including cognitive therapies, relaxation and hypnosis. Her analysis found no significant difference in the effectiveness of different types of psychotherapy. It also found that the length of the treatment (the number of sessions) didn't matter.
Possibly most significant from a healthcare cost perspective was the finding that treatments conducted online appear to be equally as effective as those conducted in person.
Laird said, "In this study we looked at the effect of psychological therapies on gastrointestinal symptoms. In a follow-up study I am investigating the effect that they have on patients' ability to function: go to work, go to school, participate in social activities and so on."
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