VENTRICULAR RATE AND BLOOD PRESSURE ORTHOSTATIC REACTIONS IN PATIENTS WITH PERMANENT ATRIAL FIBRILLATION IN GENERAL CARDIOVASCULAR RISK GROUPS

Abstract

Types and prevalence of ventricular rate (VR), systolic (SBP) and diastolic (DBP) blood pressure (BP) orthostatic reactions (OR) in patients with permanent atrial fibrillation (AF) in general cardiovascular risk groups (GCVR) were studied in 137 patients (73 men and 64 women), aged 66.4 ± 9.9 years. VR was measured by the electrocardiography (ECG) on the computer electrocardiograph «CardioLab 2000» and BP – semi-automatic tonometer Microlife BP2BIO. Changes VR, SBP and DBP in the range of ± 5 % were classified as a lack, an increase of 5 % and more – both positive and decreased by 5 % or more – as a negative OR. GCVR calculated in accordance with the scale of SCORE. Patients were classified into groups of GCVR. Statistical evaluation of the results was performed with the parametric estimate of the mean (M) and standard deviation (sd) and non-parametric Student's T-test and Mann-Whitney test methods. It was found that patients with AF have all three types (positive, absent, negative) OR of VR, SBP and DBP, which are stored in all classes GCVR. Optimizing the management of patients with atrial fibrillation, including with and through modification within the GCVR risk factors should take into account deviations in orthostatic reactions of VR, SBP and DBP.