A systematic review and meta-analysis of the aetiology of acute pancreatitis |
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Authors: | Mariana B. Zilio Tatiana F. Eyff André L.F. Azeredo-Da-Silva Vivian P. Bersch Alessandro B. Osvaldt |
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Affiliation: | 1. Department of Digestive Surgery, Hospital Moinhos de Vento Pancreas Group, Porto Alegre, Brazil;2. Internal Medicine Service, Hospital de Clinicas de Porto Alegre (HCPA), EBM Academy, Porto Alegre, Brazil;3. Group of Pancreas and Biliary Tract, Digestive Surgery Service, Hospital de Clinicas de Porto Alegre (HCPA), Hospital Moinhos de Vento Pancreas Group, Porto Alegre, Brazil;4. Department of Surgery, Medical School, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil |
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Abstract: | BackgroundGallstones and alcohol are currently the most frequent aetiologies of acute pancreatitis (AP). The aim of this study is to quantify these aetiologies worldwide, by geographic region and by diagnostic method.MethodsA systematic review of observational studies published from January 2006 to October 2017 was performed. The studies provided objective criteria for establishing the diagnosis and aetiology of AP for at least biliary and alcoholic causes. A random-effects meta-analysis was used to assess the frequency of biliary (ABP), alcoholic (AAP) and idiopathic AP (IAP) worldwide and to perform 6 subgroup analyses: 2 compared diagnostic methods for AP aetiology and the other 4 compared geographic regions.ResultsForty-six studies representing 2,341,007 patients of AP in 36 countries were included. The global estimate of proportion (95% CI) of aetiologies was 42 (39–44)% for ABP, 21 (17–25)% for AAP and 18 (15–22)% for IAP. In studies that used discharge code diagnoses and in those from the US, IAP was the most frequent aetiology. ABP was more frequent in Latin America than in other regions.ConclusionGallstones represent the main aetiology of AP globally, and this aetiology is twice as frequent as the second most common aetiology. |
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Keywords: | Correspondence: Mariana B. Zilio Department of Digestive Surgery Hospital Moinhos de Vento Pancreas Group R. Ramiro Barcelos 2350 Porto Alegre RS 90035-903 Brazil. |
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