Heterogenecity of the Regional Contraction Sequence of the Ventricle in Men : A Cineangiocardiographic Study : Symposium on Dynamics of Cardia

概要

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Patterns of the regional contraction sequence of the LV was studied with cineangiocardiography in 5 control subjects and in 16 patients with valvular or myocardial diseases. The long axis and 3 transverse widths of the LV cavity were sequentially measured at 25 msec. intervals. The circumferential shortening velocity and total extent of shortening were calculated to estimate the systolic changes of the LV dimension. In normal LV, the shortening of the 3 widths was synchronized, but the shortening velocity and total extent of shortening were the largest at the apical width. In mitral insufficiency and IHSS, an earlier onset and/or more rapid shortening of the basal width was observed. In aortic insufficiency, the shortening of the apical width was reduced. Heterogeneity of the regional Con-traction was marked in myocardial disease. Possible factors influencing the regional Contraction sequences were briefly discussed.
社団法人日本循環器学会の論文
1970-06-20