The ultrasonic evaluation of the diameter of common carotid arteries and the thickness of the Intima-Media complex in evenks of the arctic zone of the Republic Sakha (Yakutia)

By ultrasonography was study the anatomical structure of the common carotid arteries and the total thickness of their inner and middle membranes (intima-media complex) in Evenks in the Arctic zone of the Republic of Sakha (Yakutia), depending on age and gender. It were studied 210 patients aged 21 to 74 years, the average age was 47 years. The thickness of the intima-media complex was measured on the back (relative to the sensor) vessel wall 1-1,5 cm proximal to the bifurcation. In the presence of thickening of the complex, the measurement was performed in the zone of maximum visual thickening. It was found that the diameter of the left common carotid artery is larger than the diameter of the right; an increase in the total thickness of the inner and middle membranes of the common carotid arteries with age occurs more on the left side, regardless of gender. The average age at which there is a thickening of the intima-media complex to 1,0 mm or more in general for all groups was 58,73 years, which is 5,2 years later than among residents of Central Russia.