[The mechanisms of the development of vertical blood reflux through the deep veins in varicose veins].

Retrograde phlebography (pelvic, femoral, popliteal cavography) was used for studying mechanisms of the formation of vertical reflux of blood along deep veins in 176 patients with varicose disease. Two mechanisms were established. The first mechanism is responsible for the retrograde blood flow arising due to descending ectasia of deep veins followed by the development of valve insufficiency, the second one--for the vertical reflux of blood formed isolatedly in deep veins of the femur and leg due to primary injury of valve cusps.