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Antimicrobial treatment of pancreatic infection in cats

An investigation examined the efficacy of antibiotics in a novel feline model of pancreatic infection in acute pancreatitis. Acute pancreatitis was induced in cats using an established technique. In control animals (no pancreatitis) and cats with pancreatitis, Escherichia coli (104 in 0·1 ml) was placed in the pancreatic duct. Reoperation was performed after 24 h in six controls and six cats with pancreatitis. E. coli was cultured from the pancreas in five control animals and five cats with pancreatitis. Reoperation was performed after 1 week in ten controls, in 11 cats with pancreatitis and in nine with pancreatitis that were treated with cefotaxime (50 mg/kg intramuscularly three times daily) started 12 h after the induction of pancreatitis and administration of E. coli. Pancreatic infection developed in eight cats with pancreatitis compared with none of the cefotaxime‐treated animals and none of the controls (P < 0·05). Cefotaxime reached bactericidal levels in pancreatic tissue and juice. In conclusion, ductal administration of E. coli caused pancreatic infection only in cats with acute pancreatitis. Early administration of an appropriate antibiotic was effective in treating pancreatic infection in acute pancreatitis.