Abstract
BACKGROUND
With the continuous improvement of living standards, the incidence of recurrent acute pancreatitis is also increasing year by year, and this disease has become a hot research topic in recent years. Understanding the etiology of recurrent acute pancreatitis has become an urgent problem to be solved in clinical practice.
AIM
To explore the risk factors for recurrent acute pancreatitis (RAP) by means of systematic evaluation, and provide evidence for better prevention of RAP.
METHODS
We searched CNKI, CBM, VIP, Wanfang, The Cochrane Library, PubMed, Embase, and Web of Science databases to collect case-control and cohort studies on the risk factors associated with RAP from January 1, 2000 to February 29, 2020. "Pancreatitis", "recurrence", "risk factors", and their free words were selected as keywords. The retrieved articles were evaluated and filtrated using the Newcastle-Ottawa Scale (NOS). Meta-analysis was performed based on the articles scored above 6 by using Revman5.3 software.
RESULTS
A total of 15 articles were included, with the cumulative number of cases and controls reaching 2258 and 8482, respectively. The results of meta-analysis showed that alcohol consumption [odds ratio [OR] = 1.83, 95%CI (1.30, 2.59), P = 0.0006], smoking [OR = 2.09, 95%CI (1.61, 2.73), P < 0.00001], biliary AP [OR = 1.82, 95%CI (1.28, 2.57), P = 0.0008], hypertriacylglyceremic AP [OR = 2.24, 95%CI (1.76, 2.85), P < 0.00001], alcoholic AP [OR = 2.68, 95%CI (2.03, 3.55), P < 0.00001], diabetes [OR = 1.57, 95%CI (1.48, 1.66), P < 0.00001], fatty liver [OR = 2.05, 95%CI (1.22, 3.47), P = 0.007], and CT score [OR = 3.52, 95%CI (2.28, 5.43), P < 0.00001] were statistically significant risk factors for RAP.
CONCLUSION
Current evidence shows that the risk factors for RAP include disease factors (biliary, alcoholic, and hypertriacylglyceremic AP, fatty liver, and diabetes), behavioral factors (alcohol consumption and smoking), and related indicators (CT score). Due to the limited quantity and quality of included studies, more prospective high-quality clinical studies are needed to verify the above conclusion.
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