Direct Recording of Cardiac Output- and Venous Return-Curves in the Dog Heart-Lung Preparation for a Graphical Analysis of the Effects of Cardioactive Drugs

The dog heart-lung preparations were prepared. The "equilibrium point", which could be defined as the point at which the cardiac output (CO)-curve and the venous return (VR)-curve crossed, when the CO and VR were plotted against the right atrial pressure, was recorded directly by utilizing...

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