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ID 18373
Eprint ID
18373
FullText URL
Thumnail 74_381.pdf 5.62 MB
Title Alternative
Studies on the Electrocardiogram in the Aged Part 1 A Study on the Scalar Electrocardiogram
Author
Haraoka, Syoichi
Abstract
By means of the lead X, Y, Z, the scalar recording of its component, a difference of the electrocardiogram was compared between the young and the old persons. They include the normal healthy and diseased ones. The former consisted of 88 elder and 32 younger persons. In this study, criteria of ventricular hypertrophy ere sought.P-wave showed a positive or diphasic one in the lead X, Y, but a negative in the lead Z. QRS-wave also showed a positive one in the lead X, Y, and a diphasic or positive, in the lead Z. T. wave showed a positive one in the lead X, Y, and a negative in the lead Z. The frontal QRS axis calculated from the lead X, Y, exhibited a correlation with the Eintoven's triangle, although the normal range of the former was narrower than that of the latter. It was found that the mean spatial T-magnitude was smaller in the younger aged groups than in the elder groups, in hypertensive patients an increase of the elevational QRS-V° was considered to be due a shift of the QRS vecthr to the left and posterior. It was also noted that the mean spatial QRS-T angle and QRS, T. magnitude were angmented. The mean spatial T-magnitude showed a decrease upon an elevation of the diastolic presure. Thus, it would seem that Rx+R=≧20mm is more quantitative method for criteria of the diagnosis of left ventricular hypertrophy. This leading method is found to be more quantitative method than ever before and to have fewer leading sited of the electrodes. Therefore, it may clinically be useful.
Published Date
1962-03-30
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume74
Issue
issue1-3
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
381
End Page
392
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/74/1-3/74_1-3_381/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma