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  • Title: Upper gastrointestinal mucosal abnormalities and blood loss complicating low-dose aspirin and antithrombotic therapy.
    Author: Taha AS, Angerson WJ, Knill-Jones RP, Blatchford O.
    Journal: Aliment Pharmacol Ther; 2006 Feb 15; 23(4):489-95. PubMed ID: 16441469.
    Abstract:
    BACKGROUND: Little is known about the site and nature of bleeding lesions related to low-dose aspirin and other antithrombotic agents. AIM: To describe the mucosal abnormalities in patients presenting with upper gastrointestinal bleeding while being treated with these drugs. METHODS: The endoscopic findings and clinical details were analysed in all patients presenting with haematemesis and/or melaena at a single centre during three calendar years. Associations between endoscopic findings and risk factors, including the intake of non-steroidal anti-inflammatory drugs, low-dose aspirin (75 mg daily) and other antithrombotic drugs including warfarin, clopidogrel, and dipyridamole, were assessed by logistic regression analysis. RESULTS: In 674 upper gastrointestinal bleeders, we found that the odds ratio for the presence of erosive oesophagitis in aspirin users was 2 (95% CI, 1-3; P = 0.03) and 3 (2-5; P = 0.0003) in patients taking other antithrombotic agents. In 41 patients with oesophagitis and taking these drugs, 36 (88%) had cardiovascular disease and only 4 (10%) had peptic symptoms. CONCLUSIONS: Erosive oesophagitis is common in patients with upper gastrointestinal bleeding taking low-dose aspirin or antithrombotic agents, and could potentially be confused with the coexisting heart disease.
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