Document Detail


Electrocardiographic manifestations: patterns that confound the EKG diagnosis of acute myocardial infarction-left bundle branch block, ventricular paced rhythm, and left ventricular hypertrophy.
MedLine Citation:
PMID:  10645842     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The 12-lead electrocardiogram (EKG), a powerful tool used in evaluating the chest pain patient, has its shortcomings. One such failing is encountered in a patient with one of the following electrocardiographic patterns: left bundle branch block (LBBB), ventricular paced rhythm (VPR), and left ventricular hypertrophy (LVH). These patterns reduce the ability of the EKG to detect acute coronary ischemic change and acute myocardial infarction (AMI). Several strategies are available to assist in the correct interpretation of these complicated electrocardiographic patterns, including a knowledge of the ST segment-T wave changes associated with these confounding patterns, performance of serial EKGs, and comparison with previous EKGs if available. This article suggests guidelines and interpretive tools for diagnosing AMI on EKG in patients with these confounding patterns.
Authors:
W J Brady; T C Chan; M Pollack
Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  The Journal of emergency medicine     Volume:  18     ISSN:  0736-4679     ISO Abbreviation:  J Emerg Med     Publication Date:  2000 Jan 
Date Detail:
Created Date:  2000-02-07     Completed Date:  2000-02-07     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8412174     Medline TA:  J Emerg Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  71-8     Citation Subset:  IM    
Affiliation:
Department of Emergency Medicine, University of Virginia Health Sciences Center, Charlottesville 22908, USA.
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MeSH Terms
Descriptor/Qualifier:
Aged
Bundle-Branch Block / complications*
Cardiac Pacing, Artificial*
Electrocardiography*
Emergencies
Humans
Hypertrophy, Left Ventricular / complications*
Male
Myocardial Infarction / complications*,  diagnosis*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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