Abstract
The article presents preliminary study results of association of direct ultrastructural characteristics of mitochondria (MTC) in cardiomyocytes and indirect signs of mitochondrial dysfunction with clinical course and outcomes of chronic heart failure (CHF). According to electron microscopy of the myocardium a violation of the ultrastructure of MTC of cardiomyocytes is accompanied by a decrease in the rate of oxygen absorption by mitochondria of leukocytes of peripheral blood, separation of oxidation and phosphorylation processes, an increased rate of radiopharmaceuticals leaching from myocardium, indicating mitochondrial membrane damage, low tolerance to physical load and reduced oxygen consumption at peak of load test, which confirms the feasibility of studying associations of indirect signs of mitochondrial dysfunction with ultrastructural changes in the mitochondrial cardiomyocytes and clinical manifestations of heart failure.
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