Document Detail

Diagnostic significance of T I < T III and TV1 > TV6 signs in ischaemic heart disease.
MedLine Citation:
PMID:  8340323     Owner:  NLM     Status:  MEDLINE    
One hundred seventy patients with ischaemic heart disease (IHD) and 141 healthy controls were evaluated to assess the diagnostic significance of T I < T III and TV1 > TV6 as compared to widening of QRS-T angle. Number of cases with abnormal widening of QRS-T angle was significantly higher (P < .001) in frontal and horizontal planes in the IHD group. T I < T III sign has 61.2% sensitivity, 74.5% specificity and 25.5% false positivity in diagnosis of IHD. Along with abnormal QRS-T angle widening it gave a specificity of 95.5% but a false positivity of 35% and a low sensitivity index (35.3%). TV1 > TV6 sign has sensitivity, specificity and false positivity of 72.9% 84.4% and 15.6% respectively. Combining it with abnormally wide QRS-T angle did not materially improve these indices. Combining T I < T III and TV1 > TV6 signs gives a sensitivity of 49.4%, specificity of 95% and false positivity of 5% in IHD. This is a good diagnostic index and can be assessed at a quick glance without cumbersome estimation of QRS-T angle.
S P Barthwal; R Agarwal; N B Sarkari; D K Agarwal; S K Shukla
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Association of Physicians of India     Volume:  41     ISSN:  0004-5772     ISO Abbreviation:  J Assoc Physicians India     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-09-02     Completed Date:  1993-09-02     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7505585     Medline TA:  J Assoc Physicians India     Country:  INDIA    
Other Details:
Languages:  eng     Pagination:  26-7     Citation Subset:  IM    
BRD Medical College, Gorakhpur.
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MeSH Terms
False Positive Reactions
Myocardial Ischemia / diagnosis*,  epidemiology
Predictive Value of Tests
Sensitivity and Specificity

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