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Observational Study
. 2014 May;49(5):814-24.
doi: 10.1007/s00535-013-0839-5. Epub 2013 Jun 12.

Risk factor profiles, drug usage, and prevalence of aspirin-associated gastroduodenal injuries among high-risk cardiovascular Japanese patients: the results from the MAGIC study

Naomi Uemura  1 , Kentaro Sugano, Hideyuki Hiraishi, Kazuyuki Shimada, Shinya Goto, Shinichiro Uchiyama, Yasushi Okada, Hideki Origasa, Yasuo Ikeda; MAGIC Study Group
Collaborators, Affiliations
Observational Study

Risk factor profiles, drug usage, and prevalence of aspirin-associated gastroduodenal injuries among high-risk cardiovascular Japanese patients: the results from the MAGIC study

Naomi Uemura et al. J Gastroenterol. 2014 May.

Abstract

Background: Low-dose aspirin is widely used for the prevention of cardiovascular events. The prevalence of gastroduodenal injuries and the risk factor profile including gastroprotective drug therapy needs to be clarified in Japanese patients taking daily aspirin for cardioprotection.

Methods: This Management of Aspirin-induced Gastro-Intestinal Complications (MAGIC) study was conducted with a prospective nationwide, multicenter, real-world registry of Japanese patients at high-risk of cardiovascular diseases who were taking regular aspirin (75-325 mg) for 1 month or more. All patients underwent endoscopic examination for detection of gastroduodenal ulcer and mucosal erosion. The risk factor profiles including the concurrent drug therapy were compared for those patients with gastroduodenal problems and those without.

Results: Gastroduodenal ulcer and erosion were detected in 6.5, and 29.2% of the 1,454 patients receiving aspirin, respectively. H. pylori infection was associated with an increased risk for ulcer: OR 1.83 (1.18-2.88 p = 0.0082). Risk of erosion was lower with enteric-coated aspirin than with buffered aspirin: odds ratio (OR) 0.47 (0.32-0.70, p = 0.0002). Patients receiving proton pump inhibitors had lower risks for both gastroduodenal ulcer and erosion: OR 0.34 (0.15-0.68, p = 0.0050) and 0.32 (0.22-0.46, p < 0.0001), respectively. However, those receiving histamine 2-receptor antagonists had reduced risks for erosion but not for ulcer: OR 0.49 (0.36-0.68, p < 0.0001).

Conclusion: Gastroduodenal ulcer and erosion are common in Japanese patients taking low dose aspirin for cardioprotection. Proton pump inhibitors reduce the risk of gastroduodenal mucosal injury.

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Figures

Fig. 1
Fig. 1
Flow chart of the study patients
Fig. 2
Fig. 2
Use of aspirin formulations and prevalence of gastroduodenal ulcer and erosion in patients not treated with antiulcer drugs. In 690 participants who were not treated with antiulcer drugs, prevalence of gastroduodenal erosion and ulcer were compared between patients receiving enteric-coated (88.7 %) and buffered aspirin (11.3 %). AMB absence of mucosal break
See this image and copyright information in PMC

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