Doppler ultrasound of the venous system of the lower extremities was performed in 80 patients with a suspected presence of venous pathology. The leading clinical symptom of chronic venous insufficiency of the lower extremities is varicose veins, which in 95% of cases was represented by telangiectases and reticular veins with localization on the skin of the popliteal and posterior-inner surfaces of the lower leg. In the structure of chronic venous insufficiency, the pathology of the saphenous veins amounted to 78.8% and a third was represented by insufficiency of vein valves. Hemodynamically significant pathology of deep vein valves was observed only in 12.5% ​​of patients. The main factor that determines the clinical symptoms and the development of chronic venous insufficiency of the lower extremities is the size of the lumen of the large saphenous vein. An increase in the elasticity index of the total femoral and popliteal veins above 1.37, the hypoplasia index of the great saphenous vein above 1.2, and also segmental venous reflux in a standing position lasting more than 0.5 seconds indicate a venous pathology.

valvular insufficiency; varicose veins; doppler ultrasound.

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