Electrocardiographic and Phonocardiographic Studies in Hypertension:Part II. Phonocardiographic Study with Special Reference to the Atrial Sound and "Q-1" Interval
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概要
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Phonocardiographic study was made in order to display the similarity in the left atrial overloading between hypertension and mitral stenosis which is expressed by the Pwave changes as described in the preceeding paper.(1) A positive correlation among the diastolic blood pressure level and the grade of accentuation of the atrial sound, determined by our multi-filter system phonocardiograph, was revealed and this relation was also ascertained in the follow-up study as well as in the cold pressor test.(2) "Q-1" interval in hypertension showed a significant prolongation, and there were definite correlations among this prolongation, the diastolic blood pressure, and the other phonocardiographic and electrocardiographic findings.(3) The pathophysiological significance of these phonocardiographic and electrocardiographic findings in hypertension was discussed. It was concluded that the accentuation of the atrial sound and the prolongation of the "Q-1" interval, combined with the Pwave changes, should be the reflection of the left atrial overloadiug, therefore, these findings might be one of the objective signs indicating the impending left heart failure in hyper-tensive hearts.
- International Heart Journal刊行会の論文
著者
-
KAITO Goro
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
-
Ueda Hideo
Second Department Of Internal Medicine Faculty Of Medicine University Of Tokyo
-
Sakamoto Tsuguya
Second Department Of Internal Medicine University Of Tokyo
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