| Clinical use of posterior electrocardiographic leads: a prospective electrocardiographic analysis during coronary occlusion. | |
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MedLine Citation:
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PMID: 8721648 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Posterior electrocardiographic leads have been described for quite a while; however, their use in diagnosing acute posterior wall myocardial infarction and identifying infarct-related arteries has not been well used. We prospectively studied electrocardiographic changes during balloon occlusion of single-vessel right coronary artery (RCA) and circumflex coronary arteries (LCX). Thirty four inflations were performed in RCAs and 38 in LCXS. Analysis of the patients with ECG changes revealed that the most common ECG change during RCA occlusion was inferior ST-segment elevation in leads II, III, and aVF (95 percent), and the most common change during LCX occlusion was posterior ST elevation in leads V7, V8, and V9 (68 percent). ST elevation was always seen in inferior leads in the RCA group and in posterior leads in the LCX group. Thus posterior leads helped identify RCA versus LCX as the infarct-related artery. ST elevation was also noted by posterior leads in seven (36.8 percent) additional patients. Thus there was a definite added benefit of posterior leads during LCX occlusion. In the appropriate clinical setting, posterior leads may help in differentiating LCX occlusion from RCA occlusion. |
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Authors:
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A U Kulkarni; R Brown; M Ayoubi; V S Banka |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American heart journal Volume: 131 ISSN: 0002-8703 ISO Abbreviation: Am. Heart J. Publication Date: 1996 Apr |
Date Detail:
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Created Date: 1996-09-23 Completed Date: 1996-09-23 Revised Date: 2006-02-27 |
Medline Journal Info:
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Nlm Unique ID: 0370465 Medline TA: Am Heart J Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 736-41 Citation Subset: AIM; IM |
Affiliation:
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Episcopal Heart Institute, Episcopal Hospital, Philadelphia, PA 19125, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Angioplasty, Transluminal, Percutaneous Coronary* Coronary Disease / physiopathology, therapy Electrocardiography* Humans Myocardial Infarction / diagnosis, physiopathology*, therapy Prospective Studies |
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