Acute pancreatitis and bacterial translocation

Digestive Diseases and Sciences
L CicaleseK Lee

Abstract

Infectious complications are the most frequent and severe complications of acute narcotizing pancreatitis (AP) with a mortality rate up to 80%. Although experimental and clinical studies suggest that the microbiologic source of pancreatic infection could be enteric, information in this regard is scant. This study evaluated bacterial translocation (BT) using mild and severe models of AP. Mild AP was induced by 6-hr continuous intravenous infusion of cerulein, while severe AP was induced by additional infusion of glycodeoxycholic acid into the biliopancreatic duct. BT was evaluated with organ cultures performed when animals were killed (24 hr). To confirm the gastrointestinal origin of the translocating microorganisms, fluorescent microspheres were also given to the animals in drinking water 24 hr before induction of AP. At the time of death beads were counted with a (fluorescence-activated cell sorter) (FACS) in peritoneal lavages and with fluorescent microscopy in frozen sections of the pancreata. Morphology of the distal small bowel showed significant changes in the animals with AP compared to controls, such as reduction of villus high and altered microvasculature. Mild AP induced BT to the pancreas in 100% of the animals, com...Continue Reading

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