EVALUATION OF DEFORMATION OF THE LEFT VENTRICLE AND LEFT ATRIUM, AND THE ROTATIONAL PROPERTIES OF THE LEFT VENTRICLE IN PATIENTS WITH CHF ACCORDING TO THE ECHOCARDIOGRAPHIC TECHNOLOGY OF NON-DOPPLER IMAGING IN TWO AND THREE-DIMENSIONAL REGIMENS

Objective. To study the peculiarities of deformation, rotation properties, twisting and untwisting of the left ventricular(LV), evaluation of the function of left atrium in patients with CHF with preserved and reduced ejection fraction of the left ventricular according to Echocardiography technology Non Doppler imaging in two and three-dimensional regimes (2D and 3D Speckle tracking imaging).

Material and methods. The study included 70 patients with chronic heart failure (CHF) with preserved (Group I) and reduced (Group II) ejection fraction (EF) of the left ventricular (LV). In addition to the standard Transthoracic echocardiography, all patients were assessed the deformation of the left ventricle (LV) and left atrium (LA) as well as the rotational properties of the LV using the technology of myocardial image in two and threedimensional regimen.

Results. Studies show that patients CHF deformation of the left ventricular (LV) and left atrium (LA), and the rotational properties, twisting and unwinding of the (LV) according to the two methods were lower than the control group (CG). In both groups there was a reliable increase the size and volume of LA, as well as a decrease the deformation of the LA in it phases and global longitudinal deformation. The values of the global longitudinal deformation of the LA in patients group I and II (-6,68±3.0% and-6,63±3.3%, respectively) were reliably lower compared to CG (-9.3±7.3%) (p <0.001). A good correlation was found between LV deformation and LV EF in patients group I (r = -0.39) ( p <0.001) and in group II (r = 0.35)(p <0.001).

Conclusions. When estimating the deformation of the left ventricular according to the data of two technologies, the threedimensional mode demonstrated lower myocardial deformation in comparison with the three dimensional regime, which may be associated with a fuller assessment of the deformation of the left ventricular myocardium. Also increased global longitudinal deformation of LA can be an early predictor of diagnostics of CHF.

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