Comparison of left atrium volume and right ventricle parameters in patients with chronic heart failurewith low ejection fraction
ORIGINAL PAPERS
Abstract
Introduction.The study of hemodynamic interaction and structural - functional dependence of the heart cavities is an important marker for assessing the severity of heart failure and the prognosis of the disease. In this study, a comprehensive clinical and instrumental examination was performed on patients with heart failure and significantly reduced ejection fraction.Aim—to evaluate the relationship between the volume of the left atrium and the parameters of the right ventricle in patients with chronic heart failure and reduced ejection fraction.Materials and methods.30 male patients with significantly reduced EF at the age of 54.5±11.8 years with dilatation of the heart cavities were examined. Based on the results of coronary angiography, as well as the clinical and laboratory parameters of the patients, the probable cause of dilatation cardiomyopathy was determined to be ischemic or idiopathic. Echocardiography was performed using the standard technique in two - dimensional mode by a single researcher with calculation of the contractility and area parameters of the right ventricle. Statistical data processing was carried out.Results.Despite the echocardiographic similarity of the structural changes in both groups, the analysis showed that in the ischemic group there was less correlation between dilatation processes occurring in the left chambers and similar changes in the right parts of the heart. There was also a higher diagnostic value of the right ventricular contractility index, the fractional area change (FAC, %), than the more traditional indicator, the tricuspid annular plane systolic excursion (TAPSE, mm).Conclusion.These findings help to better understand the etiopathogenetic relationships, which helps to improve the quality of diagnosis and, ultimately, prognosis in patients with this spectrum of pathology of the cardiovascular system.
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