Value of assessing left ventricular diastolic dysfunction in objectivization of heart failure diagnosis: review of current international recommendations

Abstract

Given the growing medical and social importance of the CHF problem, as well as the emerging difficulties in its diagnosis in patients with a normal fraction of left ventricular ejection, there is a need to develop universal algorithms for verifying the diagnosis of CHF based on objective methods of evaluating the contractile function of the myocardium. In this connection, the present article analyzes the data of the latest foreign recommendations concerning the diagnosis of heart failure with preserved VF, with a detailed consideration of the informative value of echocardiographic parameters in verifying diastolic dysfunction. According to the updated international guidelines (ESC, ASE/EACVI), an algorithm based on an objective examination of heart function and structure by Dopplerography can be used to detect diastolic dysfunction. It is shown that the ratio of the maximum rates of E/A, the ratio of the maximum velocity of transmittal blood flow and the peak rate of myocardial relaxation to the phase of early filling of the ventricles (E/e ') are the informative parameters determining the degree of dystolic dysfunction.