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International Angiology 2020 Apr 29

DOI: 10.23736/S0392-9590.20.04356-4

Copyright © 2020 EDIZIONI MINERVA MEDICA

lingua: Inglese

Diosmin 600 in adjunction to rivaroxaban reduces the risk of the post-thrombotic syndrome after femoropopliteal deep vein thrombosis: the results of RIDILOTT DVT study

Ilya SCHASTLIVTSEV , Kirill LOBASTOV, Victor BARINOV, Irina KANZAFAROVA


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BACKGROUND: To assess the efficacy and safety of long-term diosmin 600 therapy added to rivaroxaban and elastic compression stockings (ECS) in patients with femoropopliteal deep vein thrombosis (DVT).
METHODS: This single-center, open-label randomized clinical trial RIDILOTT DVT enrolled patients with their first femoropopliteal DVT confirmed by duplex ultrasound scan (DUS). Participants were randomly allocated to the control group (standard treatment with rivaroxaban for six months and ECS for 12 months) or the experimental group (standard treatment with the additional use of diosmin 600 mg once daily for 12 months). Patients were followed for 12 months. The primary outcome was post-thrombotic syndrome (PTS), according to the Villalta score (≥5). The secondary outcomes were deep vein recanalization, chronic venous disease (CVD) progression, the severity of PTS (Villalta), and CVD (VCSS), quality of life (CIVIQ-20), venous thromboembolism recurrence, and adverse event (AE).
RESULTS: Ninety patients were randomized (45 per group). There were 56 men and 34 women with a mean age of 57.8±13.4 years, and 69% had clinically unprovoked DVT. PTS frequency at 12 months was significantly lower (8.9% vs. 48.9%) in the experimental group compared with control one (relative risk, 0.14; 95% Confidential Interval, 0.04-0.43, p<0,001). Adding diosmin 600 was associated with quicker and complete vein recanalization, lower CVD progression rate, and lower Villalta, VCSS, and CIVIQ-20 scores. There was no difference in recurrent DVT or AE.
CONCLUSIONS: Adjunctive use of diosmin 600 to rivaroxaban and ECS in patients with femoropopliteal DVT can improve the clinical and ultrasound outcomes after 12 months of treatment.


KEY WORDS: Diosmin; Inflammation; Post-thrombotic syndrome; Recanalization; Thrombosis

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