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10 Cards in this Set
- Front
- Back
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Short Bowel Syndrome
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- 150 to 200cm or less of below the duodenum
- Symptoms: Malabsorption, Negative nitrogen balance, Diarrhea, Steatorrhea |
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Intestinal Failure
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- Any intestinal condition requiring the us of parenteral nutrition (PN) to maintain nutrient , water and electrolyte balance
- short bowel syndrome is the most common cause |
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Describe stage one following bowel resection
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- Lasts several weeks
- Gastric acid hypersecretion -Significant water and electrolyte shifts - requires copious IV fluids |
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Describe stage two following bowel resection
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- Nutritional support is primary concern
- may last up to two years - intestinal adaptation occurs - may wean from PN |
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Describe stage three following bowel resection
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- Homeostatic phase
- no further improvement or adaptive changes occur |
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Best tolerated areas to resect
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- Stomach. Jejunum, and colon
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Less tolerated areas of the bowel to resect
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- Ileum
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Importance of the ileum
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- Mucosa more susceptible to structural enhancement
- Increased villus length and complexity - Chyme moves slower - site of ileogastric reflex which normally slows gastric emptying - Site of bile absorption |
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Ileocecal Valve / sphincter
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- ICV slows transit of chyme into the colon allowing for increased absorption
- ICV prevents movement of bacteria up into the small intestine - Loss of ICV leads to bacterial overgrowth |
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What stimulates normal Intestinal growth
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- Gastrin
- Luminal nutrition - Glutamine - Pancreatic and biliary secretions - Polyamines |
