Abstract :
[en] OBJECTIVE: Visceral hypersensitivity is considered a key symptom in inflammatory bowel
disease (IBD) and irritable bowel syndrome (IBS), both of which seriously affect health-related
quality of life (HrQoL). Previous findings are mostly based on invasive procedures that may
interfere with the assessment of visceral perception. The current study, therefore, investigates
whether IBD and IBS are characterized by altered perception of “natural” gastric distensions
(“interoception”). METHODS: Twenty IBD patients in remission (13 Crohn‟s disease, 7 ulcerative colitis), 12
IBS patients, and 20/12 matched healthy control (HC) individuals, respectively, underwent the
water load test, in which they could drink ad libitum until the subjective thresholds of satiation
(stage 1) and fullness (stage 2) were reached. Gastric motility was assessed using
electrogastrography. RESULTS: IBD patients drank significantly more water until satiation than IBS patients,
whereas no differences between patients and HC groups were observed. Electrogastrographic
patterns were comparable between groups, suggesting no pathologies in gastric motility in IBD
or IBS. The amount of water consumed until satiation negatively correlated with HrQoL related
Gastric interoception in IBD and IBS to bowel symptoms in IBD patients, but was positively associated with emotional well-being in IBS patients. CONCLUSION: Our findings implicate relative gastric hypersensitivity in IBS, and relative hyposensitivity in IBD patients, which are both related to specific HrQoL aspects.
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