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May Thurner Syndrome

May-Thurner syndrome is a vascular condition that affects blood flow in the pelvis and lower extremities. It occurs when the right iliac artery compresses the left iliac vein, which can partially block blood flow returning from the left leg to the heart.

This compression may increase pressure in the vein and contribute to symptoms such as leg swelling, pain, and varicose veins. In some cases, May-Thurner syndrome can increase the risk of developing deep vein thrombosis (DVT), a blood clot in the leg.

Some people with May-Thurner syndrome may have no symptoms and never realize they have the condition.

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SYMPTOMS

of May Thurner Syndrome

Symptoms most commonly affect the left leg and may include: 
  • Leg swelling 
  • Pain or aching 
  • Feelings of heaviness 
  • Varicose veins 
  • Skin discoloration 
  • Open sores or ulcers in severe cases 

If a blood clot develops, symptoms may occur suddenly and require immediate medical attention. 
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DIAGNOSIS

of May Thurner Syndrome

Diagnosis begins with a review of your symptoms, medical history, and a physical examination. Imaging studies are often used to evaluate blood flow and identify compression of the iliac vein. 
Diagnostic testing may include: 
  • Ultrasound 
  • CT scan (computed tomography) 
  • MRI (magnetic resonance imaging) 
  • Venogram 

These tests help determine the severity of compression and whether a blood clot is present. 
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TREATMENT

of May Thurner Syndrome

Treatment depends on the severity of symptoms and whether blood clots are present. 

Conservative Treatment 
Patients with mild symptoms may benefit from: 
  • Compression stockings 
  • Leg elevation 
  • Activity and lifestyle modifications 
Some patients without symptoms may only require monitoring. 

Minimally Invasive Procedures 
For more significant symptoms or vein blockage, minimally invasive treatment may be recommended. 

The most common procedure involves placing a stent inside the affected iliac vein to improve blood flow and relieve compression. This endovascular procedure is performed using small catheters and imaging guidance without the need for large surgical incisions. 
 
If deep vein thrombosis (DVT) is present, additional treatments such as blood thinners or clot-removal procedures may also be necessary. 
Your vascular specialist will determine the most appropriate treatment plan based on your symptoms, imaging results, and overall vascular health. 
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Disclaimer 
Symptoms, risk factors, diagnostic testing, and treatment options vary by individual. Please consult your healthcare provider for personalized medical advice. 
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