Abstract
Aim. To study the long-term effect of complex therapy with the addition of enhanced external counterpulsation (EECP) on the structural and functional parameters of the cardiovascular system in patients with ischemic chronic heart failure (CHF). Material and methods. Patients with ischemic CHF NYHA class II-III (n=59; median age 64.8 [57.6; 71.2] years; 81.4% men), receiving EECP in addition to optimal medical treatment (35-hour course every 6 months; compression pressure 220-280 mmHg) had an assessment of exercise tolerance (distance in the 6-minute walk test; 6MWT), structural and functional state of large vessels and microvasculature (computer video capillaroscopy of the periungual bed, photoplethysmography, applanation tonometry), assessment of echocardiographic parameters (volume dimensions, systolic and diastolic functions of the left ventricle) at baseline, after 12, 24 and 36 months. The follow-up period was 36 months. Results. Significant stable positive dynamics of tolerance to physical activity (the distance in the 6MHT increased by 59.4%) was found. Functional parameters of the heart (LVEF from 40.6 [34.6; 43.2] to 49.2 [43.0; 52.7] %, p=0.003; NT-proBNP from 246 [167; 341] to 120 [93; 148] pg/ml), large (occlusion index by phase shift) and small (occlusion index by amplitude, percentage of perfused capillaries, percentage of capillary restoration) vessels significantly improved already in the first year of observation, while structural parameters (volume dimensions; indexed LV myocardial mass from 94.3 [79.4; 97.4] to 121 [109; 134] g/m2, p=0.010; radial augmentation index, stiffness index, occlusion index) began to change significantly by 2-3-years. Conclusion. A stable positive effect of EECP treatment in patients with ischemic heart failure on the structural and functional parameters of the heart and blood vessels has been demonstrated. At the same time, the rate of improvement in functional indicators was much faster than that of structural parameters.
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