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ST-segment depression in aVR as a predictor of culprit artery and infarct size in acute inferior wall ST-segment elevation myocardial infarction.
- Source :
-
Journal of electrocardiology [J Electrocardiol] 2010 Mar-Apr; Vol. 43 (2), pp. 132-5. Date of Electronic Publication: 2009 Oct 07. - Publication Year :
- 2010
-
Abstract
- Background: ST-segment depression in lead aVR in acute inferior wall ST-segment elevation myocardial infarction (STEMI) has recently been suggested as a predictor of left circumflex (LCx) artery involvement. The purpose of this study is to evaluate the clinical significance of aVR depression during inferior wall STEMI.<br />Methods: This study included 106 consecutive patients who presented with inferior wall STEMI and underwent urgent coronary angiogram. Clinical and angiographic findings were compared between patients with and without aVR depression > or = 0.1 mV.<br />Results: The sensitivity and specificity of aVR depression as a predictor of LCx infarction were 53% and 86%, respectively. In patients with right coronary artery infarction, aVR depression was associated with increased cardiac enzymes and the involvement of a large posterolateral branch, which may explain the larger infarction.<br />Conclusions: ST-segment depression in lead aVR in inferior wall STEMI predicts LCx infarction or larger RCA infarction involving a large posterolateral branch.<br /> (2010 Elsevier Inc. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1532-8430
- Volume :
- 43
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Journal of electrocardiology
- Publication Type :
- Academic Journal
- Accession number :
- 19815231
- Full Text :
- https://doi.org/10.1016/j.jelectrocard.2009.09.003