Iliac vein compression syndrome

Left common iliac vein compressed between right common iliac artery and the fifth lumbar vertebra at the aortic bifurcation above the iliocaval junction.

Most patients are asymptomatic.

May be exacerbated by conditions leading to stasis an causes swelling of the left lower extremity.

Iliac vein compression syndrome is the most probable cause of iliofemoral deep venous thrombosis.

One half to two thirds of patients with left-sided iliofemoral DVT have intraluminal vascular alterations from extrinsic compression of the left iliac vein at the crossing point of the right common iliac artery.

Approximately 2% to 5% of those with chronic deep venous insufficiency of the left leg may have this syndrome.

The iliac vein compression occurs when compression of the common iliac vein is severe enough to inhibit the rate of venous outflow.

Can cause an acute iliofemoral DVT.

Caused by the combination of compression and pressure of the right iliac artery on the iliac vein that is pinched between the artery and the pelvic bone.

Patients presenting with symptoms of chronic venous insufficiency often fail conservative treatment. and because of their crippling symptoms,

Endovascular stenting can correct the underlying cause and long-term patency is acceptable.

Diagnosis suspected when patients present with either acute or chronic venous disease.

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