Simultaneous Pressure Pulses in the Human Left Atrium, Ventricle and Aorta: Preliminary Communication

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Abstract
Pressure pulses from the human heart have been recorded at operation by simultaneous needle puncture of the left atrium, left ventricle and aorta. Superimposed tracings on equal ordinate scales were obtained, thus simplifying the analysis of hemodynamic events. Preliminary observations are presented from cardiologically normal controls and patients with mitral stenosis before and after commissurotomy.

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