Hemodynamics of Cardiac Arrythmias

概要

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Experimental and clinical investigations have been made in hemodynamics, by means of intracardiac catheterization, especially considering intracardiac and vascular pressures. The atrial systolic pressure of extrasystoles increases in accordance with ventricular systole regardless of the nature of the extrasystoles, and it influences the atrial pressure of the following normal contraction. A close relationship can be found between the ventricular and vascular pressures and the coupling of extrasystoles. During ventricular extrasystoles there is no blood flow into the aorta but a small amount of blood is ejected into the pulmonary arteries. There is also a close relationship between the right ventricular and pulmonary arterial pressures and the coupling during atrial fibrillation. Its pressure-coupling curve resembles that of Starling. Changes in the pressure-coupling curve of the pulmonary arteries following digitalization are divided into two types according to the nature of cardiac insufficiency. It was observed that in the right bundle branch block there is a delay in the onset of the mechanical contraction of the right ventricle compared to that of the left ventricle.
社団法人日本循環器学会の論文
1962-03-20