Serum amylase levels in patients with acute pancreatitis often remain or fluctuate above the upper normal limit for over a week. This study investigated the clinical characteristics of patients with prolonged hyperamylasemia and their prognoses, including recurrence.We retrospectively analyzed patients with first attacks of acute pancreatitis in a single center between March 2010 and December 2016. Patients were divided into 2 groups according to normalization of the serum amylase levels within a week.A total of 313 patients were enrolled after exclusion. The serum amylase levels were normalized within a week in 205 patients (65.5%, group 1) and elevated over a week in 108 patients (34.5%, group 2). Group 2 was more related to alcohol, higher computed tomography (CT) severity index, local pancreatic complication, and moderately severe pancreatitis than group 1 (P < .05). Recurrent pancreatitis developed significantly more in group 2 (39.8%) than in group 1 (19.5%) (P < .001). The factors related to recurrent pancreatitis were amylase group, sex, alcohol, CT severity index, necrosis, and severity of pancreatitis (P < .05). Multivariate analysis showed that recurrent pancreatitis was independently associated with amylase group (odds ratio [OR] 2.123, 95% confidence interval [CI]= 1.227-3.673, P = .007) and alcohol (OR 2.023, 95% CI 1.134-3.611, P = .017).In conclusion, prolonged hyperamylasemia over a week is associated with recurrence of acute pancreatitis.
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| http://dx.doi.org/10.1097/MD.0000000000018861 | DOI Listing |
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