Modern prospective studies report that an increase in the stiffness of the vascular wall is a predictor of diseases of the cardiovascular system (CVS) due to impaired shock-absorbing function of the main arteries. Shock absorption (reduction of fluctuations) of the walls of the arteries is determined by their extensibility (stiffness) and elasticity; it is indispensable in order to smooth out periodic systolic waves of blood flow and reduce the damaging effect of the pulse wave on the vascular wall. The novel coronavirus infection SARS-CoV-2 predominantly affects the lung tissue, but it can also impact the cardiovascular system. Numerous studies support the development of myocarditis, heart failure, arrhythmias, and thrombotic complications in patients hospitalized for COVID-19.