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Updated: Nov 10, 2025

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
Published on: June 2, 2015
May-Thurner syndrome and deep vein thrombosis: A series of 8 patients
Alejandra García-García1, Crhistian-Mario Oblitas1, Francisco Galeano-Valle2
1Venous Thromboembolism Unit, Internal Medicine. Hospital General Universitario Gregorio Marañón, Madrid, Spain; Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain.
Objectives:
To analyze the prevalence of May-Thurner syndrome (MTS) among patients with deep vein thrombosis (DVT) of left lower limb (LLL), and outcomes after long-term follow-up.
Method:
Retrospective observational study that included patients older than 18 diagnosed with acute DVT and MTS.
Results:
Among 760 patients diagnosed with DVT in the LLL, 8 patients were diagnosed with MTS (1.05%), with a mean age of 39 years. All patients received long-term anticoagulation, with a mean of 31.9 (±25.2) months. Invasive treatment with pharmaco-mechanical thrombectomy was performed in 5 patients (62.5%). During follow-up (mean of 32.4 months), 25% of patients suffered DVT recurrence. Only 1 case presented major bleeding, and no deaths were registered.
Conclusions:
May-Thurner syndrome constitutes a permanent and underdiagnosed risk factor for the development of DVT of LLL. Our findings suggest that long-term anticoagulation therapy might be considered in selected cases.
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