THE SPATIAL VECTORCARDIOGRAM IN HYPOTHERMIA
نویسندگان
چکیده
منابع مشابه
The J loop of the spatial vectorcardiogram in accidental hypothermia in man.
TheJ' loop of the spatial vectorcardiogram has been studied, using the Frank system of lead placement, in 25 patients with accidental hypothermia. There was a highly significant correlation (P<0o0025) between the duration of the loop (range 40-i60 msec) and the severity of the hypothermia, but its rate of inscription may (a) be uniform throughout, (b) slow progressively throughout, or (c) slow ...
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THE spatial vectorcardiogram is an approximate model of the moment-to-moment changes in direction and magnitude of the unbalanced electrical activity of the heart in three dimensions. In practice it is recorded from the surface of the human thorax through specially placed electrodes, so the information it records is essentially similar to that recorded by scalar (surface) electrocardiography. A...
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A study of 90 patients with left ventricular hypertrophy revealed a typical configuration of the spatial vectorcardiogram in most of the subjects. Typically the QRS stY-loop was smooth, wide and rounded, inscribed in a counterclockwise direction and placed largely to the left and above the iso-electric point in its frontal plane projection. The left sagittal plane projection of the QRS stY-loop...
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A method of vectorcardiography, in which the projections of the spatial veetorcardiogrami in various planes of an equilateral tetrahedron reference system are recorded, has been applied to the study of left bundle branch block. Results suggest that the method employed may provide information relative to the state of the miyocar(liutim and the extent of myocardial lesions which is not evident fr...
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The spatial vectorcardiograms of 75 normal subjects have been studied and some features of these records are described. The QRS st and T st-loops were found to have only two basic spatial configurations but with a variety of orientations thus giving widely different planar projections and in part accounting for the wide range of normal electrocardiograms. The significance of this and other find...
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ژورنال
عنوان ژورنال: Heart
سال: 1958
ISSN: 1355-6037
DOI: 10.1136/hrt.20.2.175