What is May-Thurner Syndrome (MTS)?

May-Thurner Syndrome (MTS) is a condition characterized by the compression of the left common iliac vein by the right common iliac artery, leading to an increased risk of blood clots and venous insufficiency. This compression can impede blood flow through the left iliac vein, increasing the risk of developing blood clots (deep vein thrombosis, or DVT) in the affected vein. MTS is a relatively rare condition but can have significant implications for venous health.

This condition is primarily caused by the anatomical relationship between the right common iliac artery and the left common iliac vein. The right common iliac artery runs over the left common iliac vein, which is compressed by the right common iliac artery, which then can reduce blood flow and increase the risk of clot formation.

Over time, this compression can lead to damage to the vein wall and predispose to clot formation.

Figure-1-May-Thurner-Syndrome

Symptoms

Symptoms of May-Thurner Syndrome can vary and may include: 

Leg Swelling

Particularly in the left leg.

Ulcers

Open sores that may develop due to chronic venous insufficiency.

Pain

Discomfort or pain in the left leg.

Skin Changes

Changes in skin color or texture in the affected leg.

Varicose Veins

Increased visibility of veins in the left leg.

Diagnosis

Medical History and Physical Examination

Discussion of Symptoms

Evaluation of symptoms and potential risk factors.

Physical Exam

Checking for swelling, pain, and other signs of venous obstruction.

Imaging Tests

Ultrasound

To assess blood flow and identify clots.

CT Venography

Detailed imaging of the veins to visualize compression and blood flow.

Magnetic Resonance Venography (MRV)

Non-invasive imaging to evaluate the veins.

Intravascular Ultrasound (IVUS)

Image guided ultrasound is performed to precisely locate the iliac femoral, popliteal and/or tibial vein compression and determine the exact percentage of stenosis for assessment of May-Thurner Syndrome.

Treatment Options

Anticoagulants (Blood Thinners)

To prevent and treat clots in the veins. Examples: Heparin, warfarin, rivaroxaban, apixaban.

Compression Stockings

To be worn on legs to improve blood flow, reduce swelling and prevent complications.

Endo-venous Stenting Procedure

Placement of a stent in the left common iliac vein to alleviate compression can reduce symptoms and improve venous outflow.

Angioplasty Procedure

Balloon angioplasty may be used in conjunction with stenting to widen the compressed vein.

Prevention and Management

Our Approach at IMIIT

We specialize in providing care of venous vascular care with a focus on patient safety, comfort, and personalized care. Our team of experienced doctors are experts in the field, utilizing state-of-the-art technology and techniques to deliver exceptional outcomes for our patients.

Patient-Centered Care

We understand that considering treatment for venous disease can be daunting. Our compassionate healthcare team is here to guide you through every step of your journey, from initial consultation to post-procedure follow-up care. We prioritize clear communication, education, and patient empowerment to ensure you make informed decisions about your health. 

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Find a Location Near You

Looking for minimally invasive May-Thurner Syndrome treatments close to home? IMIIT provides non-surgical care for Iliac veins at our offices in Rancho Cucamonga, Downey, and Oak Park. We welcome patients from across Los Angeles, Long Beach, Anaheim, Pasadena, Riverside, San Bernardino, Chicago, Oak Park, Naperville, and beyond. Whether you’re nearby or traveling for care, our team is here to make the process easy and ensure you get the personalized treatment you deserve.