Упруго-эластические свойства общих сонных артерий у больных артериальной гипертензией

Objective: to identify patterns of changes in elastic properties of vessels on the example of the common carotid artery in patients with hypertension, depending on presence of signs of undifferentiated connective tissue dysplasia. Methods of the Study. The study involved 54 hypertensive patients with high blood pressure of 2–3 degree, high and very high additional risk, aged 30 to 59 years. Depending on the presence of signs of undifferentiated connective tissue dysplasia patients were divided into 2 groups. Using high-resolution sonography we investigated common carotid artery diameter in systole and diastole, the thickness of the intima-media complex, calculated Young’s and Peterson’s modulus, the coefficients of the radial tension of vascular wall, linear elasticity, stiffness index, the local velocity of the pulse wave in the common carotid artery. Results. Indicators of elastic properties of the common carotid arteries in hypertensive patients with signs of undifferentiated connective tissue dysplasia show lower stiffness relative to those in patients without such symptoms. Severity of symptoms of undifferentiated connective tissue dysplasia determines the size of Peterson’s modulus, and this dependence is polynomial inversely proportional. The differences between indicators that were studied, the left and right common carotid arteries, which achieves reliable value in relation to value of the coefficient of linear extensibility in all studied patients.