A DIFFERENTIATED APPROACH IN THE TREATMENT OF ACUTE FLOATING VENOUS THROMBOSIS OF THE INFERIOR VENA CAVA SYSTEM
Authors: Khrebtiy Y. V. 
Published: July 2023

We analyzed the results of surgical treatment floating DVT. Unfortunately, there are no randomized studies in the world regarding the determination of clear tactical approaches to the treatment of floating venous thrombosis, in many cases doctors make decisions about the choice of surgical tactics based on their own experience. In our research, we tried to systematize our own experience and form the basic principles of determining surgical tactics in the treatment of floating venous thrombosis. To date, anticoagulants, surgical interventions in the form of thrombectomy, and thrombolytic therapy are used in the treatment of DVT. Unfortunately, at the moment, no consensuses clearly define the issues of surgical treatment of floating venous thrombosis, venous thrombosis in pregnant women, venous thrombosis complicated by pulmonary embolism, venous thromboembolism.

The goal. The aim of the research was to develop a surgical tactics in the treatment of floating DVT of the inferior vena cava.

Materials and methods. The treatment of 76 patients with floating DVT from 2008 to 2020 were analyzed.

In a research among patients with floating DVT in 15(20%) patients experienced thrombosis of the inferior vena cava, 19(25%) patients had ilio-femoral thrombosis in 17(22%) patients with femoral - popliteal thrombosis in 9(12%) patients with popliteal - tibial.

Deep vein thrombosis complicated by pulmonary embolism with medium and high risk of death was observed in 10 (13%) patients. Among them, floating thrombosis of the iliac-femoral segment was observed in 4 patients.

Floating thrombosis of deep veins in pregnant women was observed in 6 (8%) patients.

Among patients, 20 (296%) patients were admitted within 1 day of the onset of the disease, 30 (39%) patients on 2-3 days, 11 (14%) patients on 4-7 days, 8 on 8-14 days (11%) patients, from the 15th day - 7 (10%) patients).

The results. Patients with long of  floating part of the more than 4 cm, we used an active surgical tactics. In the presence of the floating thrombus a total iliac vein thrombectomy we performed in 12 patients with the removal of the floating thrombus with femoral access. For the prevention of pulmonary embolism in these cases we implanted a temporary cava-filter. When flotation thrombus in the external iliac vein, we used the technique of thrombectomy using Fogarty two catheters in 12 patients. When flotation clots in common femoral vein and distally using a vein thrombectomy with clamping head above floating thrombus. When treating patients with floating DVT, pulmonary embolism complicated with medium and high risk of death, we used systemic thrombolysis with pre- implantation temporary coffee filter in patients with floating DVT, pulmonary embolism complicated with medium and high risk of death, we used systemic thrombolysis with pre- implantation temporary coffee filter. In the presence of pregnancy and floating thrombosis thrombectomy was performed with the removal of the thrombus floating. In our research, when performing the surgical treatment of DVT no cases of pulmonary embolism during or after treatment were observed. In 100 % of patients after treatment has been a clinical improvement in all cases floating DVT was eliminated floating nature of the danger of thrombosis and pulmonary embolism.

Conclusions. In the presence of a floating DVT of the inferior vena cava system with a length of the floating part of the thrombus greater than 4 cm, it is necessary to use an active strategy of thrombus removal. When performing thrombectomy, it is necessary to use methods of surgical prevention of PE, taking into account the localization of the floating part.