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irritable bowel syndrome


Def
  a functional disordepr of git it is one for which no infective structural or biochemical cause can be found

  irritable bowel syndrome
is benign chronic symtom complex of altered bowel habits and abdominal pain

aetiology
no organic cause
altered gi motility gastric emtying increased bowel contractions
serotonin an important factor
psycho disturbances

clinical features
abdominal pain
diarrhoea
stools pallet like
post prandial tenesmus



investigations
aim  to exclude organic bowel disease
sigmoidoscopy
barium enema

treatment

reassurance of patint

for pain predominant ibs
bulk luxative like methylcellulose
diclomine
psychotropic agent amitriptyptyline

for dirrhoea predominant ibs
loperamide
cholestyramine
alosetron

for constipations predominant ibs
  fibre supplementation
lectulose milk of magnesia can be given

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