A shortcut review was carried out to establish whether ST elevation in aVR accurately identifies acute myocardial infarction caused by left main coronary artery stenosis. 141 unique papers were found in Medline, EMBASE, Cochrane Database of Systematic Reviews, ACP Journal Club and the Database of Abstracts of Reviews of Effects using the reported searches. Of these, 12 presented the best evidence to answer the clinical question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these best papers are tabulated. It is concluded that ST elevation in aVR can identify high-risk patients for early intensive investigation, particularly when found alongside widespread ST depression. It has insufficient utility to identify patients who require immediate revascularisation.
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