[INDICATORS OF CARDIOHEMODYNAMICS OF RHYTHM DISTURBANCES IN ELDERLY PEOPLE WITH CHRONIC HEART FAILURE].

The aim of our study was to study and analyze the electrophysiological indicators of rhythm disturbances in heart failure in elderly people who participated in the elimination of the consequences of the Chernobyl accident in the distant period. In order to assess the functional features, 50 elderly patients (65-74 years old) who participated in the liquidation of the consequences of the Chernobyl accident were examined. Patients were divided into 4 groups depending on the length of stay in an environmentally disadvantaged zone: group 1 (April-June 1986) - 8 (16%) people; 2 (June-December 1986) -14 (28%); 3 (1987-1989) -17 (34%) and group 4 (1990-91gg) -11 (22%) people. All patients were on basic therapy. To study cardiogemodynamics in this category of patients, the following electrophysiological research methods were performed: ECG, XM ECG, SMAD, EchoCG. When analyzing electrophysiological studies, the MSExcel and Statistica programs were used. The examined patients showed a high incidence of left ventricular hypertrophy and cardiac arrhythmias. So in the 1st and 2nd groups, atrial fibrillation, sinus tachy and bradycardia, AV blockade of 1-2 degrees were reliably detected. In groups 3 and 4, left ventricular hypertrophy and arrhythmias were detected with a lower frequency. It should be noted that these changes were observed in individuals participating in the LPA from April to December 1986, i.e. in the first year after the accident. According to echocardiography, diastolic dysfunction of the left ventricle was found mainly in individuals of 1-2 groups. High high indices of KDR, BWW and KSO in 1-2 groups are noted. LVMI exceeds its norm in all studied groups. Thus, statistically significant differences of some indicators are revealed with electrophysiological research methods in all groups of elderly patients with heart failure participating in the liquidation of the Chernobyl accident, as well as the high incidence of rhythm disturbances in patients with Chernobyl nuclear power plants.