Role of motility in chronic diarrhoea

Patients complaining of ‘chronic diarrhoea’ usually mean the passage of loose, urgent stools. Chronic diarrhoea is a feature of malabsorption; it may also be seen in the ‘dumping syndrome’ which follows gastric surgery, small intestinal bacterial overgrowth, bile salt malabsorption and in malabsorpt...

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Bibliographic Details
Published inNeurogastroenterology and motility Vol. 18; no. 12; pp. 1045 - 1055
Main Author Spiller, R.
Format Journal Article
LanguageEnglish
Published Oxford, UK Blackwell Publishing Ltd 01.12.2006
Subjects
Animals
Chronic Disease
Diarrhea - physiopathology
Diarrhea - therapy
diarrhoea
Gastrointestinal Motility - physiology
Humans
intestine
Intestines - innervation
Intestines - physiopathology
motility
propulsion
secretion
serotonin
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Summary:Patients complaining of ‘chronic diarrhoea’ usually mean the passage of loose, urgent stools. Chronic diarrhoea is a feature of malabsorption; it may also be seen in the ‘dumping syndrome’ which follows gastric surgery, small intestinal bacterial overgrowth, bile salt malabsorption and in malabsorption of simple sugars including most commonly lactose, fructose and sorbitol. Excessively rapid entry of chyme into the small or large intestine generates propulsive motor patterns leading to accelerated transit. Inflammation is associated with decreased normal mixing motor patterns but increased propulsive motility including high amplitude propagated contractions (HAPCs). Evidence for abnormal small intestinal motility in the diarrhoea associated with irritable bowel syndrome (IBS) is conflicting and any difference appears small. Increased colonic HAPCs with increased propulsion is seen in IBS with diarrhoea (IBS‐D). Stress‐induced colonic motility is increased in IBS‐D with hyper‐responsiveness to corticotrophin releasing factor (CRF). Long‐lasting increases in mucosal serotonin availability may contribute to the chronic diarrhoea seen in IBS‐D and coeliac disease. Treatments for abnormal motility in chronic diarrhoea include those designed to correct specific underlying abnormalities including octreotide, antibiotics, colestyramine, specific food avoidance and anti‐inflammatory agents. There are also treatments aimed primarily at altering motility directly including opiates, 5HT3 receptor antagonists and amitriptyline.
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ISSN:1350-1925
1365-2982
DOI:10.1111/j.1365-2982.2006.00836.x