Features of the structural and functional condition of the myocardium in patients with chronic kidney disease and chronic heart failure
Relevance. The results of the structural and functional condition of the heart in patients with chronic heart failure with mid-range ejection fraction and heart failure with preserved ejection fraction and chronic kidney disease stage 3 were analyzed. Purpose. To study clinical and laboratory parameters, as well as the structural and functional condition of the myocardium in patients with chronic kidney disease stage 3 and chronic heart failure with mid-range ejection fraction and heart failure with preserved ejection fraction. Materials and methods. A total of 41 patients with chronic stage 3 kidney disease and chronic heart failure with mid-range ejection fraction and heart failure with preserved ejection fraction were examined. Structural and functional changes in the myocardium were estimated by means of echocardiography and tissue Doppler imaging. Results and conclusion. In patients with chronic heart failure with mid-range ejection fraction and heart failure with preserved ejection fraction, the presence of chronic kidney disease stage 3b in comparison with stage 3a is characterized by a more significant interatrial conduction abnormality, AV-node and bundle of the His, and also more significant violation of systolic function, not only the left, but also right ventricles. In the patients with chronic heart failure with mid-range ejection fraction and heart failure with preserved ejection fraction and the presence of chronic kidney disease stage 3a, diastolic dysfunction of the left ventricle of the I type prevails significantly more often. In the patients with chronic kidney disease of 3b stage diastolic dysfunction of the left ventricle type II is more common.