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7210859 
Journal Article 
Left main stem stenosis in the unstable patient--forewarned is forearmed 
Liang, M; Kelly, DJ; Devlin, G; , 
2011 
1 
New Zealand Medical Journal
ISSN: 0028-8446
EISSN: 1175-8716 
English 
21946971 
Recognition of clinical and electrocardiographic features suggestive of significant left main coronary artery disease is important, particularly in patients presenting with an acute coronary syndrome. These include hemodynamic instability and widespread ST segment depression, which are well known. In addition, ST segment elevation in lead aVr, a less recognised finding associated with severe left main disease, may be present.