SCORING SCALE FOR ASSESSING THE RISK OF DETECTING RIGHT VENTRICLE DIASTOLIC DYSFUNCTION OF TYPE II IN CHRONIC HEART FAILURE

Odjectives. To develop a scoring scale for assessing the risk of detecting right ventricle (RV) diastolic dysfunction (DD) of type II in chronic heart failure (CHF). Material and methods. In 2017-2018, a clinical and instrumental examination of 247 patients aged 40-86 years was performed on the basis of Health Care Institution «The 1st City Clinical Hospital» in Minsk, in 2019-2020, 129 patients at the age of 39-84 years were examined in the State Institution «Minsk Scientific and Practical Center for Surgery, Transplantology and Hematology». Study inclusion criteria: sinus rhythm, essential arterial hypertension (AH), chronic ischemic heart disease (IHD), CHF, informed voluntary consent of the patient to participate in the study. Exclusion criteria: primary mitral regurgitation, mitral stenosis, mitral valve repair or replacement, congenital heart defects, acute and chronic diseases of the lungs and kidneys. Results. The sum of points>52 obtained using a scoring scale that includes scientifically based ultrasound criteria for global cardiac remodelling: RV early diastolic filling index E/eʹ >4.08 (sensitivity (S) 81.1%, specificity (Sp) 56.9%) - 15 points, the amplitude of the systolic displacement of the lateral part of the tricuspid annulus in systole to the apex (TAPSE) ≤20 mm (S 74.1%, Sp 83.3%) - 49 points, pulmonary artery systolic pressure ˃32.6 mm Hg (S 85.2%, Sp 79.5%) - 31 points, indicates a high risk of detecting RV DD of type II in CHF (AUC 0.99, S 93.9%, Sp 100.0%). The reproducibility of the results is shown in an independent examination sample of patients with CHF with preserved left ventricular ejection fraction. (AUC 0.99, S 90.0%, Sp 100%, +PV 100.0%, - PV 34.5% with a cut-off threshold >52). Conclusions.When using the scale, the score is > 52, it is recommended to perform a comprehensive targeted assessment of global cardiac remodelling to determine RV DD of type II in a patient with CHF, complicating essential AH, chronic IHD.