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Objectives  to determine the hemodynamic changes within arterial vessels in different variants of extrasystole, to analyze whether extrasystole is an additional risk factor for the development of atherosclerosis.&#x0D;Material and methods. The study included 286 patients (175 men and 111 women) with extrasystole of more than 3000 per day and 88 patients with extrasystole of less than 3000 per day as a control group. When selecting eligible patients for the study, we tried to minimize the impact of traditional risk factors of atherosclerosis. The presence of cardiocerebral complications in medical history was also considered. The examination methods used in the study are electrocardiography, phonocardiography, 24-hour electrocardiography monitoring, Doppler ultrasound of the brachiocephalic vessels, lower extremities arteries, renal arteries, transthoracic or transesophageal echocardiography. Stress echocardiography was performed if indicated; as well as renal artery angiography, coronary angiography, computed tomography of the brain with angioprogram. When performing a biochemical blood test, the lipid spectrum and hemostasiogram were necessarily determined. All patients underwent left ventricular apexcardiography, as well as sphygmography, recorded on arteries of elastic type (a. Carotis communis) and muscular-elastic type (a. Tibialis posterior). The clinical examinations were confirmed and modeled using the original "Device for modeling of intra-arterial circulation", developed by us (RF patent No. 202780 dated 05.03.2021).&#x0D;Results. We determined an increase in the main parameters of the heart biomechanics and the kinetics of the main arteries in the 1st post-extrasystolic wave in patients with various types of extrasystole with the following pattern: the earlier extrasystole had appeared in the cardiocycle, the greater was the increase in the parameters under observation. A universal concept of hydraulic shock and possible cases of its formation were described.&#x0D;Conclusion. Extrasystole is an additional risk factor for the onset and progression of atherosclerosis. Hydraulic shock during the passage of the 1st post-extrasystolic wave is a powerful traumatic factor for the walls of the arteries, which can lead to the formation of an atherosclerotic process.

Extrasystolic arrhythmia – an unaccounted risk factor of atherosclerosis development in main arteries?