[Method of surgical treatment of venous thrombosis using proximal protection].

Pulmonary embolism ranks third among causes of death from cardiovascular diseases after acute coronary syndrome and impairment cerebral circulation. A factor provoking pulmonary embolism in the majority of cases is thrombosis of deep veins of lower limbs. Presented in the article is a clinical case report concerning treatment of a 35-year-old female patient with acute bilateral phlebothrombosis of internal iliac veins with floatation of thrombotic heads in the inferior vena cava and common iliac vein on the left.