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  • Title: Early prediction in acute pancreatitis: the contribution of amylase and lipase levels in peritoneal fluid.
    Author: Frossard JL, Robert J, Soravia C, Mensi N, Magnin A, Hadengue A, Rohner A, Morel P.
    Journal: JOP; 2000 Jul; 1(2):36-45. PubMed ID: 11852288.
    Abstract:
    CONTEXT: Predicting the severity of acute pancreatitis early in the course of the disease is still difficult. OBJECTIVE: The value of amylase and lipase levels in serum and peritoneal fluid might be of value in predicting the course of acute pancreatitis. DESIGN: Prospective study. PATIENTS: One-hundred and sixty-seven patients with acute pancreatitis as confirmed by computed tomography scan within 24 hours of admission were studied. MAIN OUTCOME MEASURES: Each patient was given an enzymatic score which reflected the predominance of serum or peritoneal levels of amylase and/or lipase. Enzymatic score was 0 if neither enzyme was predominant in the peritoneal fluid, 1 if amylase or lipase alone were predominant and 2 if both enzymes were predominant. The predictive value of the enzymatic score or computed tomography scan for a severe attack was determined. RESULTS: One-hundred and thirty-three attacks were graded as mild (79.6%) and 34 were considered as severe (20.4%). The frequency of severe acute pancreatitis significantly increased as the enzymatic score increased (5.4%, 12.5%, and 31.7% in 0, 1, and 2 enzymatic score patients, respectively; P<0.001). An enzymatic score greater than 0 predicted a severe outcome in 32 of 34 patients (sensitivity 94.1%, specificity 26.3%), whereas an enzymatic score of 2 predicted a severe attack in 26 of 34 patients (sensitivity 76.5%, specificity 57.9%). Edema on computed tomography scan was found in 97 of 129 mild attacks (specificity 75.2%) and necrosis in 25 of 33 severe attacks (sensitivity 75.8%), whereas all patients with severe attacks exhibited extrapancreatic acute fluid collection (sensitivity 100%, specificity 34.9%). CONCLUSIONS: Peritoneal dialysis is less predictive and more cumbersome than a computed tomography scan in the early prediction of acute pancreatitis.
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