The ratio of structural and functional status of myocardium to plasma level of stimulating growth factor expressed by gene 2 in patients with myocardial infarction without ST segment elevation

Abstract

Coronary heart disease remains one of the leading causes of temporary and persistent disability, invalidization and mortality in economically developed countries and is one of the most pressing problems in cardiology. Myocardial infarction is the most common manifestation of coronary heart disease and one of the main causes of the disability and mortality of the working population. The aim is to evaluate the structural and functional status of the myocardium in patients with acute myocardial infarction without ST segment elevation, depending on the plasma level of growth factor-stimulating factor expressed by gene 2 (ST2). 90 patients with acute myocardial infarction without ST segment elevation from 38 to 79 years old were examined. Among them, 60 (66.7%) male patients. Echocardiography assessed the structural and functional status of the myocardium. By enzyme-linked immunosorbent assay determined ST2 levels in blood plasma. It has been determined that myocardial infarction without ST segment elevation is associated with more severe structural left ventricular remodeling, left atrial overload, and decreased left ventricular contractility. In patients, myocardial infarction without ST segment elevation is associated with an increase in cases of left ventricular concentric hypertrophy. Analysis of the nature of diastolic transmitral blood flow showed a significant increase in cases of blood flow by type of pseudonormalization (43.5% versus 8.7%). Therefore, the data obtained showed that in patients with myocardial infarction without ST segment elevation, ST2 elevation was associated with a more frequent manifestation of diastolic transmitral blood flow by type of pseudonormalization. Patients with myocardial infarction without ST segment elevation showed a predominance of systolic dysfunction in the group with relatively high levels of ST2 in the blood plasma, and no significant differences in remodeling types were found in all study groups.