Recanalization of deep vein proximal thrombosis against a background of prolonged antiplatelet therapy

A.S. Petrikov^1,2, D.V. Dudin^1,3, Y.N. Shoikhet^1,3, V.I. Belykh¹, I.I. Prostov<sup>4

1</sup>Altai State Medical University, Barnaul
²Altai Krai Diagnostic Center, Barnaul
³City hospital No 5, Barnaul
⁴Rostov State Medical University, Rostov-on-Don

Aim: to study recanalization of deep veins in patients with proximal thrombosis against the background of prolonged antiplatelet therapy (APT) with warfarin, dabigatran etexilate and sulodexide during the year.
Patients and Methods: 210 patients were included in the study. Group 1 includes 68 patients treated with vitamin K antagonists (VKA). Group 2 consisted of 78 patients who were prescribed dabigatran etexilate after standard heparin therapy for 5 days. Group 3 consisted of 64 patients, who were prescribed sulodexide after 3 months after the course of standard ACT (heparin in the acute period with transition to VKA). US-angioscanning of the lower limbs venous system was performed at the hospitalization of the patient and on the eve of discharge for 10–14 days against the background of APT by standard common methods. Later on, outpatients underwent a study of vein recanalization on Envisor C and Acuson Antares scanners (Germany) during a year after 1, 3, 6 and 12 months from the beginning of randomization.
Results: the frequency of patients with occlusion forms in the proximal segment against the background of prolonged therapy with warfarin during the year is statistically significantly higher by 20.7% and 18.3%, respectively, than on dabigatran etexilate and sulodexide. At the same time, no cases of residual thrombotic occlusions of the main veins were detected in patients taking dabigatran etexilate during the year, and only in 2.4% of patients taking dabigatran etexilate.
Conclusion: prolonged use of dabigatran etexilate and sulodexide for a year in patients with deep vein proximal thrombosis exceeds warfarin safety and is accompanied by the development of early recanalization in the proximal segments of the venous channel.

Keywords: thrombosis, proximal deep vein thrombosis, recanalization, antiplatelet therapy, warfarin, dabigatran etexilate, sulodexide.
For citation: Petrikov A.S., Dudin D.V., Shoikhet Y.N. et al. Recanalization of deep vein proximal thrombosis against a background of prolonged antiplatelet therapy. RMJ. 2019;2:25–30.