Deep Venous Stenting

What is deep venous stenting?

Not all leg swelling comes from the superficial veins. The large iliac veins in the pelvis can be narrowed in two important ways: compressed between the iliac artery and the spine (May–Thurner syndrome, typically the left leg), or scarred from a previous deep vein thrombosis. Deep venous stenting reopens that outflow with a dedicated venous stent, relieving the pressure the whole leg drains against.

Who it may suit

• Persistent one-sided leg swelling, heaviness or aching — particularly the left leg — without another explanation
• Post-thrombotic symptoms: swelling and skin changes years after a DVT
• Venous ulcers that fail to heal despite good compression and superficial vein treatment
• An iliac narrowing uncovered during clot clearance for acute DVT

Superficial disease is treated first when it is the dominant problem; deep venous work is for the outflow obstruction the stockings and ablations cannot reach.

What the procedure involves

• Performed through a needle puncture, usually at the groin or behind the knee, under local anaesthesia with sedation — typically a day procedure
• Intravascular ultrasound (IVUS) — an ultrasound probe inside the vein — measures the true severity of the compression, which venography alone understates, and sizes the stent precisely
• A self-expanding venous stent restores the channel; you walk the same day

What to expect afterwards

Many patients notice the leg feels lighter within days. Anticoagulation or antiplatelet therapy follows for a period, and ultrasound surveillance checks the stent stays open. Pelvic ache for a few days is common; re-narrowing or blockage of the stent is the main longer-term risk, more so in post-thrombotic veins than in simple compression.

Is it right for me?

Unexplained single-leg swelling deserves a proper venous assessment rather than reassurance. At consultation the veins are scanned from ankle to abdomen, and I go through whether the problem is superficial, deep or both — because treating the wrong layer is how venous patients end up disappointed.