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Use of quantitative vectorcardiography for the diagnosis of rheumatic heart lesions


, : Use of quantitative vectorcardiography for the diagnosis of rheumatic heart lesions. Terap Arkh 37(2): 41-45

Quantative vectorcardiography was employed to assess the values of integral vectors registered in the atria sinistrum and dextrum (P1 ,P3) and in cardiac ventricles (R) of 80 patients. Evidence was made available showing that during relapsing myocarditis the vectors R and P tend to diminsh, their ratio R/P, nowever, remaining the same as in healthy subjects. In cases of mitral incompetence with co-existant myocarditis both the vector P and R may decrease the ratio of R/P. This indicates atrial potential higher than that of ventricles. In instances of mitral incompetence and stenosis there is an appreciable difference in these values. These findings may be of assistance in diagnosing rheumocarditis and the development of mitral insufficiency and in establishing a differential diagnosis between insufficiency of the mitral valve and stenosis of the ostium venosum.

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