Abstract: Procedure and device for determining cardiac output volume which involves applying an electrical potential to create a current flow through tissue of the patient's heart, placing a first measuring electrode on skin of the patient near the heart and inserting a second measuring electrode into the patient's body at a position on an opposite side of the heart from the first measuring electrode so that a straight-line heart-traversing projection extends through the heart between the first and the second measuring electrodes. In one embodiment the second measuring electrode is in a blood vessel and in another embodiment there are a plurality of second measuring electrodes with the best one being determined by Electrocardiogram equipment.

Abstract: Procedure of mechanical support of natural respiration and process of an artificial respiration with simultaneous registration of mechanical cardiac action via measurement of electric impedance variations within the region of the throat, breast and/or epigastrum, wherein a course of application of respiratory gas supply and respiratory gas restore carried out by the respiratory apparatus is controlled by progress of a measured impedance curve.