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Predictors of acute pancreatitis with low elevation of serum amylase

Authors Hong W, Geng W, Chen B, Basharat Z, Wu Q, Zimmer V, Zhou M

Received 28 July 2017

Accepted for publication 21 October 2017

Published 14 December 2017 Volume 2017:13 Pages 1577—1584

DOI https://doi.org/10.2147/TCRM.S147594

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Hoa Le

Peer reviewer comments 2

Editor who approved publication: Professor Deyun Wang


Wandong Hong,1,* Wujun Geng,2,* Bicheng Chen,3,4,* Zarrin Basharat,5,* Qingsong Wu,6 Vincent Zimmer,7,8 Mengtao Zhou4

1Department of Gastroenterology and Hepatology, 2Department of Anesthesiology, 3Department of Surgery, Zhejiang Provincial Top Key Discipline in Surgery, Wenzhou Key Laboratory of Surgery, 4Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China; 5Microbiology & Biotechnology Research Lab, Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan; 6Department of Medical Records, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China; 7Department of Medicine II, Saarland University Medical Center, Saarland University, Homburg, 8Department of Medicine, Marienhausklinik St Josef Kohlhof, Neunkirchen, Germany

*These authors contributed equally to this work

Background and aims: Serum amylase is a traditional measure used to establish the diagnosis of acute pancreatitis (AP). The current study aimed to assess the predictors and clinical outcome of AP with low serum amylase.
Methods: All patients were divided into two groups, based on their serum amylase level within the first 2 days after hospital admission: group 1 (amylase ≥300 U/L) and group 2 (amylase <300 U/L). Clinical outcomes were compared between the two groups before and after 1:1 propensity score matching. Clinical and biochemical parameters were collected and evaluated as potential predictors of AP with low serum amylase.
Results: A total of 464 patients were enrolled. After propensity score matching according to age, gender, time interval before admission, hematocrit, blood urea nitrogen and creatinine, 108 matched pairs of patients were selected. There was no significant statistical difference between group 2 and group 1 with respect to severity of AP, median days of stay in hospital and death. Multivariate analysis indicated that biliary etiology (odds ratio [OR]: 0.499; 95% confidence interval [CI]: 0.265–0.942; P=0.003), low-density lipoprotein cholesterol (LDL-C) (OR: 1.009; 95% CI: 1.002–1.017; P=0.017) and triglyceride levels (OR: 1.001; 95% CI: 1.0001–1.001; P=0.015) were independently associated with development of AP along with low serum amylase.
Conclusion: Serum amylase level was not related to the severity of AP, median hospital stay (days) and death. Biliary etiology, LDL-C and triglyceride levels were independently associated with the development of AP with lower elevation of serum amylase.

Keywords: severity, acute pancreatitis, risk factor, lipids, etiology, prediction

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