[Types of disorders of the contractile function of the heart in acute myocardial infarct].
Acute myocardial infarction is characterized by reduced contractile activity of the heart, which is manifested by pathological shifts in the phase structure of the left ventricular systole and parameters of hemodynamics corresponding to the syndrome of hypodynamia. The severity of the hypodynamia syndrome depends on the volume of the affected myocardium. On the basis of the degree of pathological shifts in the phase and hemodynamic indices, the authors distinguished several types of impaired cardiac contractility. In the course of stage-by-stage treatment applied on the principles of early activation, mobilization, and rehabilitation of patients, the dynamics differs with the type of the contractility disorder. In type I positive dynamics is revealed beginning with stage I, in type II beginning with stage II of treatment; in type III negative dynamics is noted in the early periods of the disease and positive dynamics in stage III of treatment. The differentiation of these types becomes very important in appraising the tactics, the prognosis, and the outcome of the disease. Close correlative relations were revealed between the phase indices and the indices of hemodynamics which allow more objective appraisal of the state of cardiac contractility in the acute period of myocardial infarction.
D000208:Acute Disease; D002302:Cardiac Output; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D009123:Muscle Hypotonia / Q000145:classification / Q000209:etiology; D009200:Myocardial Contraction; D009203:Myocardial Infarction / Q000503:physiopathology*
O tipakh narusheniia sokratitel'noĭ funktsii serdtsa pri ostrom infarkte miokarda.