Pancreolauryl Test for Pancreatic Exocrine Insufficiency

Ventrucci, M.; Gullo, L.; Daniele, C.; Priori, P.; Labò, G.
December 1983
American Journal of Gastroenterology;Dec1983, Vol. 78 Issue 12, p806
Academic Journal
Pancreolauryl test (PLT), a tubeless pancreatic function test, was performed in 40 consecutive patients suffering from chronic pancreatitis, in 21 patients with miscellaneous digestive diseases, and in 18 control subjects to assess its diagnostic sensitivity and specificity. N-benzoyl-L-tyrosyl-p-aminobenzoic acid test (PABA test) and secretin-cerulein test were also carried out to compare the diagnostic value of PLT with that of these two pancreatic function tests. PLT was abnormal in 22 of 40 patients with chronic pancreatitis (55%). In particular, pathological results were found in all patients with severe pancreatic insufficiency and only in four of 14 patients with mild to moderate insufficiency. PABA test showed a slightly lower sensitivity in severe insufficiency, and the same sensitivity in mild-moderate insufficiency. PLT was normal in ail control subjects and in 17 of 21 patients with nonpancreatic digestive diseases. Its specificity (90%) was slightly higher than that of PABA test (82%). The results indicate that PLT may be used to support a diagnosis of severe pancreatic exocrine insufficiency, while in mild or moderate insufficiency its diagnostic value is limited.


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