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Title: Effects of aspirin and non-steroidal anti-inflammatory drugs on the risk of cholangiocarcinoma: Ameta-analysis
Authors: K. Lapumnuaypol
A. Tiu
C. Thongprayoon
K. Wijarnpreecha
P. Ungprasert
M. A. Mao
W. Cheungpasitporn
Albert Einstein Medical Center
Faculty of Medicine, Siriraj Hospital, Mahidol University
Mayo Clinic
University of Mississippi Medical Center
Mayo Clinic in Jacksonville, Florida
Keywords: Medicine
Issue Date: 1-Jun-2019
Citation: QJM. Vol.112, No.6 (2019), 421-427
Abstract: © The Author(s) 2019. Background: Non-steroidal anti-inflammatory drugs (NSAIDs) can suppress the proliferation of cholangiocarcinoma (CCA) cells in vitro through inhibition of cyclooxygenase-2. However, the effects of aspirin and NSAIDs on the risk of CCA remain unclear. We performed this meta-analysis to assess the risk of biliary tract cancers in patients who take aspirin and/or NSAIDs. Methods: A systematic review was conducted utilizing MEDLINE, EMBASE, Cochrane databases from inception through October 2017 to identify studies that assessed the association of aspirin and/or NSAIDs use with risk of biliary tract cancers including CCA, gallbladder cancer and ampulla of Vater cancer. Effect estimates from the studies were extracted and combined using the random-effect, generic inverse variance method of DerSimonian and Laird. Results: Five observational studies with a total of 9 200 653 patients were enrolled. The pooled OR of CCA in patients with aspirin use was 0.56 (95% CI, 0.32-0.96). Egger's regression asymmetry test was performed and showed no publication bias for the association between aspirin use and CCA with P = 0.42. There was no significant association between NSAIDs use and CCA, with a pooled OR of 0.79 (95% CI, 0.28-2.21). One study showed a significant association between aspirin use and reduced risk of gallbladder cancer with OR of 0.37 (0.17-0.80). However, there was no significant association between aspirin and ampulla of Vater cancer with OR of 0.22 (0.03-1.65). Conclusions: Our study demonstrates a significant association between aspirin use and a 0.56-fold decreased risk of CCA. However, there is no association between the use of NSAIDs and CCA.
ISSN: 14602393
Appears in Collections:Scopus 2019

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