| The value of ECG lead aVR in the differential diagnosis of acute inferior wall myocardial infarction. | |
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MedLine Citation:
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PMID: 17575369 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: To investigate whether the ST changes in the aVR lead on 12-lead ECG can be used to identify infarct-related artery (IRA) in patients with acute inferior myocardial infarction. METHODS: The ECG features were studied in 90 patients with acute inferior myocardial infarction where IRA was confirmed by coronary angiography. RESULTS: Right coronary artery (RCA) and the left circumflex coronary artery (LCX) were identified as IRA in 70 and 20 patients, respectively. ST depression in aVR > or = 0.1 mV was found in 14 (70%) patients who had LCX as the IRA, and in 4 (5.7%, p<0.001) patients with RCA as IRA. Using ST segment depression > or = 0.1 mV in aVR as a criterion, the sensitivity and specificity in differentiating LCX as IRA was 70.0% and 94.3%, respectively. CONCLUSIONS: ST depression in aVR is common in patients with LCX-related acute inferior myocardial infarction. The ST changes in this lead are associated with an excellent specificity and a good sensitivity in differentiating LCX from RCA as the IRA. |
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Authors:
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Tong-Wen Sun; Le-Xin Wang; Yan-Zhou Zhang |
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Publication Detail:
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Type: Comparative Study; Journal Article; Validation Studies Date: 2007-06-15 |
Journal Detail:
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Title: Internal medicine (Tokyo, Japan) Volume: 46 ISSN: 1349-7235 ISO Abbreviation: Intern. Med. Publication Date: 2007 |
Date Detail:
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Created Date: 2007-06-18 Completed Date: 2007-08-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9204241 Medline TA: Intern Med Country: Japan |
Other Details:
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Languages: eng Pagination: 795-9 Citation Subset: IM |
Affiliation:
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Department of Emergency Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Coronary Angiography Coronary Vessels Diagnosis, Differential Electrocardiography / methods* Female Humans Male Middle Aged Myocardial Infarction / diagnosis* Sensitivity and Specificity |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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