FIELD: medicine.
SUBSTANCE: invention relates to non-invasive ultrasonic examination methods and can be used in monitoring the patients after suffering IHD and/or myocardial infarction (MI) for assessing the severity of the patient's condition, predicting the course of the pathological process and selecting a therapeutic approach. Method for assessing diastolic left ventricular myocardium function includes carrying out echocardiogram examination and assessing left ventricular myocardial diastolic function (LVDF) in rest according to transmitral blood flow and diastolic function of longitudinal fibers (LF), circular fibers (CF) and left ventricular radial fibers (RF) as per deformation rates in a phase of early myocardial diastole. Additionally, diastolic function of LV myocardial fibers in late diastole phase is determined, total diastolic function of the LF, CF and RF of the LV myocardium is determined by the indices in the phase of early diastole of peak and in the phase of late diastole of peak a in relation to early peak e and late peak a of diastolic rate of deformation, which has the following form: total DF of myocardial fibers = e/a LF + e/a CF + e/a RF, then the degree of diastolic dysfunction (DD) of the myocardium of the left ventricle is determined, wherein the degree of the left ventricular myocardium is determined by the formula: degree of diastolic dysfunction (DD)=(LV DF in transmitral flow / total function of myocardial fibers)×100 %, where DF of myocardium of LV is ratio of peaks of early—peak E and late peak A of diastolic filling of LV, determined by transmitral flow; reserve of diastolic function of left ventricular myocardium is performed by formula: reserve of left ventricular myocardium DF=100 %−degree of DD, and LV myocardial diastolic function is evaluated as good at degree of left ventricular myocardium from 0 % to 20 % and DF reserve values of not less than 80 %, satisfactory condition at degree of left ventricular myocardium DD from 21 % to 40 % and reserve of left ventricular myocardium DF of 50 % to 70 % and myocardial unsatisfactory state is evaluated at degree of left ventricular myocardium DD from 51 % to 100 % and reserve of left ventricular myocardium DF less than 50 %.
EFFECT: technical result of the method is higher accuracy of assessment by providing the possibility of determining severity of diastolic LV myocardial dysfunction and potential diastolic function in patients, those suffering IHD and/or myocardial infarction taking into account haemodynamic parameters and diastolic function of all myocardial fibers.
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