| Vectorcardiographic monitoring of patients with acute myocardial infarction and chronic bundle branch block. | |
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MedLine Citation:
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PMID: 9458421 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIMS: This study was set up to describe vectorcardiographic patterns in patients with bundle-branch block and acute myocardial infarction. METHODS AND RESULTS: Sixty-five patients admitted to the coronary care unit with bundle-branch block and suspected acute myocardial infarction were monitored by dynamic vectorcardiography with trend analysis. In 28 patients, a clinical diagnosis of acute myocardial infarction was made. In patients with left bundle-branch block and acute myocardial infarction, the pattern of QRS vector-difference evolution was similar to that in patients with the narrow QRS complex, while ST vector-magnitude changes increased over time. Using a cut-off value for QRS vector-difference at 12 h of more than 20 microVs and a specific trend curve pattern, acute myocardial infarction in the presence of left bundle-branch block could be diagnosed with an accuracy of 71%. For patients with right bundle branch block, using a maximum ST vector-magnitude of > 200 microV during the first 4 h, acute myocardial infarction could be diagnosed with a 78% accuracy. CONCLUSION: Our results indicate that dynamic vectorcardiography is a valuable tool in diagnosing and monitoring acute myocardial infarction in patients with bundle branch block. |
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Authors:
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P Eriksson; K Andersen; K Swedberg; M Dellborg |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: European heart journal Volume: 18 ISSN: 0195-668X ISO Abbreviation: Eur. Heart J. Publication Date: 1997 Aug |
Date Detail:
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Created Date: 1998-03-18 Completed Date: 1998-03-18 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8006263 Medline TA: Eur Heart J Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 1288-95 Citation Subset: IM |
Affiliation:
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Department of Medicine, Ostra University Hospital, Göteborg, Sweden. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Bundle-Branch Block / complications, diagnosis*, physiopathology Female Heart Conduction System Humans Male Middle Aged Myocardial Infarction / complications, diagnosis*, physiopathology Predictive Value of Tests Sensitivity and Specificity Vectorcardiography* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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