<unk>  bowel<unk>  occurrs as a result of bowel resection following various diseases of the gut such as Crohn's disease, malignancies, ischemia, and trauma.<unk>  bowel<unk>  occurs when the length of the small intestine is less than 2 meters and requires nutritional therapy to prevent malnutrition. Post bowel resection, adaptation might occur which includes structural, motility and functional changes in the remaining intestine. Changes usually start in the first 24 hours following bowel resection and last for about two years. Adaptation depends upon multiple factors including individual, intestinal and therapeutic measurements. Following bowel resection, adaptation occurs in three phases including acute, adaptive, and maintenance phases. Successful adaptation depends on the length of remaining intestine, portion of the resected intestine, and early introduction of nutrition therapy. The term total intestinal adaptation is used when the patient is weaned from parenteral nutrition. The main reason for malabsorption following bowel resection is reduced absorptive capacity of the small intestine due to loss of surface area. On gross and microscopic examination, the resected bowel segment may show the underlying causes including Crohn's disease, malignancies or ischemia.
Short bowel syndrome pathophysiology
Hirschsprung's disease pathophysiology
Meckel's diverticulum pathophysiology
Ischemic colitis pathophysiology
Stomatitis pathophysiology
Ileus pathophysiology
Irritable bowel syndrome pathophysiology
Diverticulitis pathophysiology