Fallot症候群のベクトル心電図について : ベクトル環形態と重症度を中心として

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There have been reported very few studies on the relationship between the various types of vectorcardiographic patterns and the degrees of the clinical severity in the cases of the tetralogy of Fallot. The purposes of this paper are to present some characteristics of vectorcardiograms (VCGs) of Fallot syndrome including triology and pentalogy as well as tetralogy, and to classify them into some groups according to the vectorcardiographic configurations and their directions of inscription displaying the clinical severity of Fallot syndrome. Subjects and Method Using the Frank lead system in the supine position, the VCGS in three standard planes (frontal, horizontal and left sagittal planes) were recorded on 85 subjects of Fallot syndrome which was confirmed by clinical, roentgenological, electrocardiographic and other laboratory methods, including angiocardiography and cardiac catheterization. With the machine of Nihonkoden VCG RM-150, X, Y, and Z scalar VCGs were recorded simultaneously at a paper speed of 100mm/sec and VCG loops in three planes were also simultaneously photographed on 35 mm film with a Canon osciloscopic camera. Pictures enlarged in the precise magnification as a scale of 1 mV calibration to 4.0cm were provided to the analysis. With the phonocardiograph of Fukuda AC-21S, phonocardiograms were recorded at a paper speed of 100mm/sec on the apex, the second, the third and the fourth intercostal space at the left sternal border, which were considered to have some roles of indicator of the severity. Classification of VCG Loops There was found plenty of variation in VCG patterns in the cases of Fallot syndrome. The classification was made on the basis of the characteristics of the configurations and the directions of inscription of QRS sE loops in the horizontal plane.
社団法人日本循環器学会の論文
1968-07-20

Fallot症候群のベクトル心電図について : ベクトル環形態と重症度を中心として

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