| 1. |
- Ersryd, Amanda, 1981, et al.
(författare)
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Subtyping the irritable bowel syndrome by predominant bowel habit: Rome II versus Rome III.
- 2007
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Ingår i: Alimentary pharmacology & therapeutics. - : Wiley. - 0269-2813 .- 1365-2036. ; 26:6, s. 953-61
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The agreement between subtyping irritable bowel syndrome (IBS) patients based on Rome II criteria versus Rome III criteria is unknown. AIM: To compare IBS subtyping based on Rome II versus III criteria. METHODS: The Rome II Modular Questionnaire and the Bristol Stool Form Scale (one-week diary cards) were completed by 249 IBS patients. Based on the Rome II criteria, patients were defined as having diarrhoea- or constipation-predominant IBS, or alternating IBS. Based on the Rome III criteria, patients were divided into IBS with constipation, IBS with diarrhoea, mixed IBS or unsubtyped IBS. Agreement between Rome II and Rome III was assessed with kappa statistics. RESULTS: Based on Rome II there were 92 diarrhoea-predominant IBS, 45 constipation-predominant IBS and 112 alternating IBS, and based on Rome III 97 IBS with diarrhoea, 77 IBS with constipation, 16 mixed IBS and 59 unsubtyped IBS. The agreement between Rome II and Rome III subgroups was 46% (kappa = 0.19). Changes from the constipation to the diarrhoea subgroups and vice versa were uncommon (8% of patients). The majority of changes occurred from/to the alternating IBS, mixed IBS and unsubtyped IBS subgroups. CONCLUSION: There is poor agreement between subtyping of IBS patients based on Rome II versus Rome III criteria.
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| 2. |
- Posserud, Iris, 1978, et al.
(författare)
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Functional findings in irritable bowel syndrome.
- 2006
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Ingår i: World journal of gastroenterology : WJG. - 1007-9327. ; 12:18, s. 2830-8
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Forskningsöversikt (refereegranskat)abstract
- The pathophysiology of IBS is complex and still incompletely known. Both central and peripheral factors, including psychosocial factors, abnormal GI motility and secretion, and visceral hypersensitivity, are thought to contribute to the symptoms of IBS. Several studies have demonstrated altered GI motor function in IBS patients and the pattern differs between IBS subgroups based on the predominant bowel pattern. Few studies have so far addressed GI secretion in IBS, but there are some evidence supporting altered secretion in the small intestine of IBS patients. Visceral hypersensitivity is currently considered to be perhaps the most important pathophysiological factor in IBS. Importantly, several external and internal factors can modulate visceral sensitivity, as well as GI motility, and enhanced responsiveness within the GI tract to for instance stress and nutrients has been demonstrated in IBS patients. Today IBS is viewed upon as a disorder of dysregulation of the so-called brain-gut axis, involving abnormal function in the enteric, autonomic and/or central nervous systems, with peripheral alterations probably dominating in some patients and disturbed central processing of signals from the periphery in others.
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