The P wave, P-R interval, and Q-T ratio of the normal orthogonal electrocardiogram

The shortcomings of electrocardiographic time measurements from single leads have been noted before. With the use of simultaneously recorded corrected, orthogonal leads it is possible to evaluate better the time phase relationships of the electrocardiogram. The present study involves a statistical a...

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Bibliographic Details
Published in:Circulation (New York, N.Y.) N.Y.), 1958-12, Vol.18 (6), p.1175-1180
Main Authors: PIPBERGER, H V, TANENBAUM, H L
Format: Article
Language:English
Subjects:
Electrocardiography
Humans
Old Medline
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Summary:The shortcomings of electrocardiographic time measurements from single leads have been noted before. With the use of simultaneously recorded corrected, orthogonal leads it is possible to evaluate better the time phase relationships of the electrocardiogram. The present study involves a statistical analysis of measurements of the P-wave duration, P-R interval, P-R segment, Q-T duration, and Q-T ratio of a group of 133 normal subjects.
ISSN:0009-7322
1524-4539
DOI:10.1161/01.CIR.18.6.1175