In the voluminous literature on electrocardiography comparatively little space has been devoted to the electrocardiographic findings in diseases of the pericardium. The mechanism of the production of these alterations has interested us. Recently1 attention has been directed to the similarity of the changes occurring in the RS-T segment of the electrocardiogram in cases of pericardial involvement with an accumulation of fluid in the sac and those seen in the early stages of acute closure of a coronary artery. We have been able to find only one reference2 in the clinical literature to the changes in the T wave occurring in diseases of the pericardium. Serial electrocardiographic studies, such as we have made, have not been previously carried out in the various stages of pericardial involvement, and this accounts, in a measure, for the paucity of data concerning the abnormalities appearing during inflammation, effusion, reabsorption and healing of the
SCHWAB EH, HERRMANN G. ALTERATIONS OF THE ELECTROCARDIOGRAM IN DISEASES OF THE PERICARDIUM. Arch Intern Med (Chic). 1935;55(6):917–941. doi:10.1001/archinte.1935.00160240046003
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