stagnant loop syndrome


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A complication of Billroth II subtotal gastroenterostomy—end-to-side enteroenteric anastomosis—that may arise long after surgery; the afferent loop consists of duodenum and a variable portion of jejunum, a loop that is a temporary reservoir for 1–1.5 litres of biliary and pancreatic secretions; after a fatty meal, the contents of a partially obstructed afferent loop increase and ‘explosively’ enter the stomach and may be regurgitated as greenish bilious fluid; other symptoms include intermittent diarrhoea due to disaccharidase deficiency, abdominal ‘colic’, haemorrhage, vitamin deficiency and neurologic symptoms; with prolonged partial obstruction, the stool is steatorrhoeic—bulky, grey, and greasy—accompanied by weight loss; complete blind loop obstruction may be a medical emergency with rapid deterioration, shock, and perforation peritonitis
Management Antibiotics—e.g., T-S—loop shortening, afferent-to-efferent or Roux-en-Y anastomoses or gastrojejunostomy

stagnant loop syndrome

Blind loop syndrome, see there.

stagnant loop syndrome

the syndrome of toxemia and dehydration caused by a loop or loops of atonic small intestine caused by partial obstruction, paralytic ileus or radiation injury. The stasis has the effect of encouraging growth of anaerobic bacteria and damage to enterocytes causing diarrhea.