Document Detail

Assessing the cause of T wave inversion in precordial leads with ECG mapping.
MedLine Citation:
PMID:  9588658     Owner:  NLM     Status:  MEDLINE    
Inversion of the T wave in precordial leads in patients with angina pectoris is a predictor of coronary disease; however, it may also be seen in normal adults. The aim of this study was to assess the cause of T wave inversion by carrying out precordial electrocardiographic (ECG) mapping in 51 patients, who also underwent echocardiography and coronary angiography. The 37 patients in group A had atypical symptoms. They included 11 patients who showed M pattern mapping, of whom 7 had noncoronary cardiac disease and 4 were normal. In 23 other group A patients, whose mappings were in the N pattern, the angiography was normal. In the remaining three patients of this group, mappings were in the I pattern, with angiography revealing coronary disease in two of them and no disease in the third. The 14 group B patients all had typical angina; mappings were in the I pattern in 8 of the patients and in the N pattern in the remaining 6. Angiography revealed coronary artery disease in all patients with the I pattern mapping, while all those with the N pattern were found to be normal. Sensitivity, specificity, and positive predictive value for detecting normal subjects were all 100% for N pattern mapping; for detecting coronary disease, they were 100%, 90%, and 90% for I pattern mapping, respectively. It is concluded that precordial ECG mapping is an accurate method for the assessment of T wave inversion in precordial leads.
M Yokuşoglu; C Sag; H Karaeren; H Kurşaklioglu; S Köse; E Demirtaş
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of electrocardiology     Volume:  31     ISSN:  0022-0736     ISO Abbreviation:  J Electrocardiol     Publication Date:  1998 Apr 
Date Detail:
Created Date:  1998-07-20     Completed Date:  1998-07-20     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  125-32     Citation Subset:  IM    
Department of Cardiology, Gülhane Military Medical Academy, Ankara, Turkey.
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MeSH Terms
Angina Pectoris / diagnosis*,  physiopathology
Arousal / physiology
Cardiomyopathy, Hypertrophic / diagnosis,  physiopathology
Coronary Angiography
Coronary Disease / diagnosis*,  physiopathology
Diagnosis, Differential
Exercise Test
Hypertrophy, Left Ventricular / diagnosis,  physiopathology
Middle Aged
Mitral Valve Prolapse / diagnosis,  physiopathology
Sensitivity and Specificity

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