The P Wave, P-R Interval, and Q-T Ratio of the Normal Orthogonal Electrocardiogram
- 1 December 1958
- journal article
- research article
- Published by Wolters Kluwer Health in Circulation
- Vol. 18 (6) , 1175-1180
- https://doi.org/10.1161/01.cir.18.6.1175
Abstract
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.This publication has 14 references indexed in Scilit:
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