LARGE MAGISTRAL ARTERIES’ STRUCTURE IN INSTABLE COURSE OF ISCHEMIC HEART DISEASE (BY ULTRASONOGRAPHY DATA)

Aim. To estimate the structure of large arteries of musculoelastic and muscular types in persons with instable stenocardia in different age groups and to assess manifestation and prevalence of atherosclerotic process. Materials and methods. Sixty six persons with instable stenocardia were examined. Ultrasound investigation of arteries was performed, vascular wall thickness to internal and external arterial diameter and to intima-media complex (IMC) thickness ratio indices were calculated, echostructure of atherosclerotic plaques was determined. Results. It was established that in different age decades, among patients with instable stenocardia there occurs growth in internal and external diameters, more marked in muscular type arteries, as well as increase in IMC and wall thickness. Conclusions. With each decade of life there occurs increase in the number of atherosclerosis-affected vascular pools and atherosclerotic plaques as well as percentage of instable atheromas.