Effect of Meal Ingestion on Ileocolonic and Colonic Transit in Health and Irritable Bowel Syndrome
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Postprandial symptoms in irritable bowel syndrome (IBS) have been associated with increased bowel contractility.
To compare ileocolonic and colonic responses to feeding in health and IBS.
We prospectively analyzed data from separate research trials in 122 IBS patients and 41 healthy volunteers. Ileocolonic transit (ICT) was evaluated before (colonic filling [CF]3h) and immediately after (CF4h) a standard lunch at 3 h 45 min, and 2 h thereafter. The colonic geometric center (GC) was calculated 2 h (GC6h) after lunch ingested at 4 h (GC4h) and directly after (GC8h) a standard dinner ingested at 7 h 45 min.
ICT immediately after eating was higher in IBS diarrhea predominant (IBS-D) patients than in the healthy cohort (23.1 ± 2.4 vs. 17.5 ± 2.8%, P = 0.059). ICT 2 h after lunch was similar between groups (P = 0.55). There was significant overall group differences in colonic transit 2 h post-lunch (P = 0.045), particularly in the IBS constipation predominant (IBS-C; GC6–GC4, Δ0.29 ± 0.08) patients versus healthy volunteers (Δ0.56 ± 0.12 GC units).
After feeding, ICT is increased in IBS-D, whereas colonic transit is blunted in IBS-C.
- Effect of Meal Ingestion on Ileocolonic and Colonic Transit in Health and Irritable Bowel Syndrome
Digestive Diseases and Sciences
Volume 55, Issue 2 , pp 384-391
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- Springer US
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- Gastrocolic reflex
- Gastroileal reflex
- Response to food
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- Author Affiliations
- 1. Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), College of Medicine, Mayo Clinic, Charlton 8-110, 200 First St. S.W., Rochester, MN, 55905, USA
- 2. Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, College of Medicine, Mayo Clinic, Harwick 7, 200 First St. S.W., Rochester, MN, 55905, USA