O L Lepetiukh

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Artifacts which can distort the heart chambers contractility indices and the ways of its prevention are discussed. Changes in the heart pre- and afterload causing an inotropic effects, are analysed. Recommendations on the computer systems for recording and processing of blood pressure parameters in physiological experiment, are given.
As a result of acute experiments on cats we revealed the approaches to choosing the best indices of the contractility of the left and the right cardiac ventricles in the concrete conditions of the experiment on the basis of the original criterion of optimality. For revealing neural inotropy influences we suggest the index based on the combined changes of(More)
In acute experiments on 21 cats it was proved that the change of afferent impulse on vagus nerves by means of either freeze-block or electrostimulation of their central ends results in differential reflex influences on rhythm and force of the cardiac contractions caused by sympathetic nervous system. The cut of the lower cardiac nerves may cause 'break-up'(More)
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