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  • Title: Diagnostic significance of spatial orientation of the electrical axis of the heart according to data of orthogonal electrocardiography.
    Author: Latypov AG.
    Journal: Cor Vasa; 1983; 25(1):65-72. PubMed ID: 6221884.
    Abstract:
    286 persons, including 146 patients with chronic pulmonary disease and 116 with extensive myocardial infarction in the acute stage, were subjected to electrocardiographic examination with the application of corrected orthogonal system of Frank. The contribution was studied of orthogonal ECG for analysing the orientation of the electrical axis of the heart in routine medical practice, for example in diagnosing complicated clinical problems, such as cor pulmonale and myocardial infarction. The dynamics of deviations of the electrical axis in three-dimensional space at respiratory insufficiency of various degree and at combined myocardial infarctions was investigated. Characteristic features were found of displacement of the electrical axis, which facilitate the diagnosing of right ventricular hypertrophy, transmural myocardial infarction, and more accurate determination of its localization.
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