Pancreas-specific lipase concentrations and amylase and lipase activities in the peritoneal fluid of dogs with suspected pancreatitis.
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abstract
Diagnosing acute pancreatitis in the dog can be challenging. The aim of this study was to determine the concentrations of pancreas-specific lipase immunoreactivity (cPLI), and the activities of amylase and lipase, in the peritoneal fluid from a population of dogs diagnosed with acute pancreatitis based on clinical signs, ultrasonographic findings and serum cPLI concentrations. In a prospective study, cPLI concentrations, and amylase and lipase activities, were measured in the peritoneal fluid of 14 dogs with pancreatitis and 19 dogs with non-pancreatic disease. The sensitivity and specificity of peritoneal fluid cPLI concentration (cut-off value 500g/L) were 100.0% (95% confidence interval, CI, 80.7-100.0%) and 94.7% (95% CI 76.7-99.7%), respectively. The sensitivity and specificity of peritoneal fluid amylase (cut-off value 1050U/L) and lipase activities (cut-off value 500U/L) were 71.4% (95% CI 44.5-90.2%) and 84.2% (95% CI 62.8-95.8%) for amylase activity, and 92.9% (95% CI 69.5-99.6%) and 94.7% (95% CI 76.7-99.7%) for lipase activity, respectively. In conclusion, peritoneal fluid cPLI concentration was highly sensitive as a complementary diagnostic tool in a group of dogs with suspected acute pancreatitis. Peritoneal fluid lipase activity was not as sensitive as cPLI concentration, but may also support a diagnosis of acute pancreatitis in dogs.
