Document Detail

Significance of a terminal R wave in lead V1 of the electrocardiogram.
MedLine Citation:
PMID:  148838     Owner:  NLM     Status:  MEDLINE    
A terminal r wave in Lead V1 lower than 0.6 mV. was studied in the ECGs of four groups: (1) 104 healthy children, (2) 207 healthy young adults, (3) 171 patients with no autopsy evidence of a cardiopulmonary disease, and (4) 1,078 autopsy patients with a cardiopulmonary disease. Cases with a complete right bundle branch block were excluded. A terminal r wave occurred in 2.9 per cent healthy children, 1.4 per cent of healthy young adults, 0.6 per cent of patients without and in 5.9 per cent of patients with autopsy evidence of a cardiopulmonary disease. The occurrence of a terminal r wave was most common in pulmonary patients (10 per cent). But it was also found in patients with an anterior or a posterior myocardial infarction and in some cases of left ventricular hypertrophy. In the autopsy series RVH occurred in 57 per cent of patients with a Qr pattern, in 30 per cent of patients with a terminal r wave higher than the initial one, and in none of the patients with a terminal r wave lower than the initial one. It is concluded that the height of the terminal r wave has clinical significance. A terminal r wave higher than the initial one in Lead V1 is associated with a cardiopulmonary disease in subjects over 30 years of age, while an r wave lower than the initial one seems to be an innocent finding.
H Raunio; V Rissanen; C Jokinen; O Penttilä
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American heart journal     Volume:  95     ISSN:  0002-8703     ISO Abbreviation:  Am. Heart J.     Publication Date:  1978 Jun 
Date Detail:
Created Date:  1978-07-24     Completed Date:  1978-07-24     Revised Date:  2006-02-27    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  702-6     Citation Subset:  AIM; IM    
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MeSH Terms
Cardiomegaly / diagnosis
Cardiomyopathies / diagnosis
Child, Preschool
Coronary Disease / diagnosis
Heart Defects, Congenital / diagnosis
Heart Diseases / diagnosis*
Heart Valve Diseases / diagnosis
Middle Aged
Myocardial Infarction / diagnosis
Pulmonary Embolism / diagnosis
Pulmonary Heart Disease / diagnosis

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

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