Abstract Number: PB2470
Meeting: ISTH 2020 Congress
Background: May-Thurner syndrome (MTS) results from compression of the left common iliac vein between the right common iliac artery and the vertebrae, causing venous stasis and predisposing to develop deep venous thrombosis (DVT) in the left lower extremity. Its prevalence is 20-30%. Treatment is based on endovascular interventions, surgery and/ or medical management. DVT recurrence is observed in 20-30% of the cases.
Aims: To describe clinical characteristics, treatment and evolution of patients with DVT and MTS that have been treated with endovascular interventions.
Methods: Descriptive, retrospective study of patients with DVT and MTS treated with endovascular interventions from January 2015 to December 2019 in the Hospital Italiano de Buenos Aires.
Results: Thirty-six patients have been included. Median age at the thrombotic event was 41 years (IQR 15-83) (table 1). Twenty- eight (78%) patients were women. Twenty DVT (56%) were acute. Fifteen DVT involved iliac-femoral-popliteal veins. The most frequent clinical presentation was pain and swelling (83%). Fourteen patients (39%) had pulmonary thromboembolism as well. In 29 cases (81%) additional prothrombotic factors were recognized, 50% of them had 2 or more factors associated (figure 1). Hormonal treatment and surgery were the most frequent prothrombotic factors found. Angioplasty and STENT colocation was performed in 32/36 of the cases. No post thrombotic syndrome was observed after the procedure. No complications were reported. Thirty- two patients (89%) received anticoagulation. Recurrence was observed in 8/32 of the cases, 6 of them had 1 or more prothrombotic factors associated.
Conclusions: In our cohort, MTS is more frequent in women, as reported in the literature. It is associated to extensive thrombosis. In most cases of DVT and MTS is possible to evidence additional prothrombotic factors. Recurrence is observed in 25% of the patients, being related to persistence of prothrombotic factors in most cases.
To cite this abstract in AMA style:Mezzarobba D, Dotta M, Penchasky D, Schutz N, Privitera V, Villagra Iturre M, Chuliber F, Bluro I, Rodriguez Santos F, Vazquez F, Viñuales E, Rabellino J. May Thurner Syndrome, Experience on Argentinean Hospital [abstract]. Res Pract Thromb Haemost. 2020; 4 (Suppl 1). https://abstracts.isth.org/abstract/may-thurner-syndrome-experience-on-argentinean-hospital/. Accessed December 11, 2023.
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