Possibilities of doppler sonography in diagnostics of early violations of diastolic function of the myocardium
Research objective. A choice and the comparative characteristic of indicators for detection of diastolic dysfunction of the left and right ventricles of heart. Material and methods. The echocardiographic research in various modes conducted to 70 patients at the age of 41-69 years (the 48th man and 22 women), in control group to 24 persons (19 men and 5 women). Investigated were divided into groups: patients with a hypertensive illness without hypertrophy and with a hypertrophy of a myocardium of the left ventricle, a hypertensive illness in combination with coronary heart disease with the postponed myocardial infarction. Results and discussion. Indicators of an active relaxation - STEAM (ATe/IVRT, IVRT/ET) and an assessment of the movement of fibrous rings of atrioventricular valves in the mode of impulsnovolnovy fabric doppler sonography (E´/Aʹ), the Tei index increase the frequency of identification of violation of DF. In all groups of patients the increase in KDD in cavities of ventricles was registered. Systolic dysfunction of both ventricles at patients with GB+IBS+PIKS was registered decrease in systolic speed of the movement of FC of atrioventricular valves with reduction of average size S ʹ and increase in the Tei index. Conclusion. To diagnostics of early violations of diastolic function of a myocardium it is expedient to apply indicators of an active relaxation and fabric doppler sonography, and to DF PZh assessment use of the mode of an impulsnovolnovy fabric doppler more significantly. For detection of systolic dysfunction of ventricles of heart to use indicators of systolic speeds of the movement of FC of atrioventricular valves - S ʹ.