FUNCTIONAL CLASS OF CHRONIC HEART FAILURE AND DYNAMIC OF HEMODYNAMIC PARAMETERS IN PATIENTS IN THE SEMI-ANNUAL PERIOD AFTER IMPLANTATION OF PACEMAKER

I.N. KOLOMYTSEVA, D.E. VOLKOV, D.A. LOPI VOLKOV, N.I. YABLUCHANSKY, D.A. Lopin

Abstract


The study included 43 patients with a permanent pacemaker on the atrio-ventricular block (AV block) and sick sinus node syndrome (SSNS) in the modes of stimulation DDD/R, bradysystolia permanent atrial fibrillation (AF) in the modes of stimulation VVI/R and dilated cardiomyopathy (DCM) in the modes of stimulation CRT-P/D. Hemodynamic parameters were evaluated according to the functional class of chronic heart failure (CHF FC). In the semi-annual period after pacemaker implantation regardless of the mode of stimulation diastolic blood pressure (DBP) and heart rate (HR) were completely normalized in all groups FC CHF, and diastolic blood pressure (SBP), end-systolic and diastolic volumes (EDV and ESV LV) and left ventricular ejection fraction (LVEF) – group I, II CHF FC with a tendency of normalization in groups III, IV FC CHF. The results were the best in the mode of stimulation CRT-P/D. Thickness of posterior wall and interventricular septum of the left ventricle (LV PW and IVS), the size of the left and right atrial (LA and RA), right ventricle (RV) showed only a tendency to reduce irrespective of the CHF FC. It is concluded that the hemodynamic parameters in patients with implanted pacemaker III, IV CHF FC require more active therapeutic monitoring and treatment.

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