"Functional Bowel Disorder. Investigation in General Practice"
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About
The study aims to investigate how to give the diagnosis of Irritable Bowel Syndrome.
The investigators compare two parallel groups of primary care patients, in the age of 18-50 years with gastrointestinal complaints where the GP suspects IBS. All included patients fulfil international diagnostic criteria (ROME III) and have no danger signals.
Group 1: The diagnosis is based on the diagnostic criteria and few blod tests Group 2: The diagnosis is a diagnosis of exclusion after investigations with extended blod tests, examination for milk- and gluten intolerance, stoll for ova and parasites and scopy of the intestine.
After receiving the diagnosis of Irritable bowel syndrome all patients are informed about the condition.
The investigators follow the patients for 1 year. The investigators hypothesis is that the two investigation programmes (group 1 and 2)are equal with respect to the patients´ quality of life, symptoms and satisfaction and also with respect to finding of organic diseases.
Full description
Background: Two opposing approaches can be distinguished in establishing the diagnosis of Irritable Bowel Syndrome (IBS): IBS as a "diagnosis of exclusion" versus IBS as a syndromic condition on its own. In Denmark we have no consensus on how to establish the diagnosis, but must often GPs approach IBS as a diagnosis of exclusion. Guidelines from the United Kingdom and the United States recommend the second approach, where the diagnosis is given as a positive diagnosis based on symptom-based IBS criteria. We lack research on this area carried out under controlled circumstances and in primary care in Denmark.
Aim: To evaluate two investigation programmes for diagnosing IBS in primary care patients in Denmark. We want to compare the two programmes in relation to the effect on the patients´ symptoms, quality of life and satisfaction, and also the cost and safety when using the different programmes. Also we want to see how the GP´s understanding of IBS correlate with the IBS criteria (ROM I, II and III)
Methods: A randomised, non-blinded, controlled intervention study of two parallel groups.
The target group comprises people aged 18-50 years, who consult their GP with gastrointestinal complaints, where the GP suspects IBS and refers the patient to the study.
To be included in the study the patients have to fulfil the ROM III criteria and they may not have any alarm signals. Included patients are randomised to one of two different investigation programmes, where the diagnosis is given as:
- A positive diagnosis, the diagnosis is based on the ROM III criteria and a few blood tests (FBC, CRP)
- A diagnosis of exclusion, the diagnosis is given after normal investigation (extended blood tests, screening for celiac sprue and lactose intolerance, endoscopy)
The patients are followed by means of monthly letters, with questions about current GI symptoms, sick-leave days, visits at GPs, use of medication etc., and validated questionnaires at baseline, after 4 weeks, 6 months and 12 months.
Enrollment
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Volunteers
Inclusion criteria
- Fulfill ROME III criteria
- age 18-50 years
- signed informed content
Exclusion criteria
- Danger signals (fever, anaemia, weightloss, blod in stools, predisposition for CRC or IBD)
- abnormal physical examination
- comorbidity
- abuse
- lacking ability to talk and understand danish
- pregnancy
- Performed endoscopy within the last 3 years
- For patients > 40 years. Changed bowel habits, with duration > 3 weeks, but < 1 year
- Age < 18 years and > 50 years
Trial design
Primary purpose
Allocation
Interventional model
Masking
153 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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