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Blind loop syndrome
Alternative namesStasis syndrome; Stagnant loop syndrome
Blind loop syndrome occurs when part of the intestine becomes blocked, so that digested food slows or stops moving through the intestines. This causes too much bacteria to grow in the intestines and causes problems in absorbing nutrients.
Causes, incidence, and risk factors
When a section of the intestine is blocked by blind loop syndrome, bile salts needed to digest fats become ineffective, resulting in fatty stools and poor absorption of fat and fat-soluble vitamins. Vitamin B12 deficiency may occur because the extra bacteria which develop in this situation use up all of the vitamin.
Blind loop syndrome is a complication that occurs after many operations, including subtotal gastrectomy (surgical removal of part of the stomach), operations for extreme obesity, or as a complication of inflammatory bowel disease or scleroderma .
Signs and testsDuring a physical examination, the doctor may notice a mass or distention of the abdomen. Possible tests include:
The initial treatment generally involves antibiotics for the bacterial overgrowth, along with vitamin B12 supplementation. If antibiotics are not successful, surgical correction of the obstruction to allow better flow of food through the intestine may be considered.
Many patients respond to antibiotics. If surgical repair is required, the outcome is typically very good.
Calling your health care provider
Call your health care provider if symptoms occur that are suggestive of blind loop syndrome.
Update Date: 11/9/2002Andrew J. Muir, M.D., M.H.S., Division of Gastroenterology, Duke University Medical Center, Durham, NC. Review provided by VeriMed Healthcare Network.
Last updated: Tue, 06 Jan 2009 00:20:03 GMT