PMID: 9436862Jan 22, 1998Paper

A comparison of lipase and amylase in the diagnosis of acute pancreatitis in patients with abdominal pain

Pancreas
V KeimJ Mössner

Abstract

The clinical value of amylase and lipase measurement for the diagnosis of acute pancreatitis was evaluated in 253 patients presenting with acute abdominal pain. Acute pancreatitis was detected in 32 patients by computed tomography or ultrasound. In the serum samples collected on days 0-1 after the onset of symptoms, lipase was elevated in 100% and amylase in 95%. A 95% sensitivity/specificity was reached at a lipase cutoff near twofold above normal. The receiver-operating characteristics (ROC) showed similar curves for both enzymes, lipase being slightly superior to amylase. The ROC curves from days 2-3 demonstrated a much lower sensitivity/specificity of both enzymes. Lipase, however, was notably superior to amylase: at a sensitivity of 85% the specificity of lipase (amylase) was 82% (68%). In samples from days 4-5 the accuracy of the enzyme assays was even worse; at a sensitivity of 60% the specificity did not increase above 70%. The diagnostic value of simultaneous measurement of amylase and lipase was tested at different cutoffs in two groups: the OR group, in which one of the two parameters had to be elevated, and the AND group, in which both parameters had to be above normal. Combination of both parameters mainly improved...Continue Reading

Citations

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