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What Is Venoplasty?

Venoplasty is a minimally invasive endovascular procedure that widens a narrowed vein with an angioplasty balloon. It is commonly used to treat venous stenosis that limits blood return through central veins, iliac veins, dialysis-access outflow veins, or other affected vessels. A catheter is advanced into the vein, and a balloon is inflated across the narrowed segment to stretch it open. A venous stent can be added when the vein recoils, remains significantly narrowed, or needs additional structural support.

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What Is Venoplasty?

Venoplasty is a minimally invasive endovascular procedure that widens a narrowed vein with an angioplasty balloon. It is commonly used to treat venous stenosis that limits blood return through central veins, iliac veins, dialysis-access outflow veins, or other affected vessels. A catheter is advanced into the vein, and a balloon is inflated across the narrowed segment to stretch it open. A venous stent can be added when the vein recoils, remains significantly narrowed, or needs additional structural support.

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Why Is Venoplasty Performed?

Venoplasty is performed when a venous narrowing causes symptoms or interferes with important blood flow. Depending on location, symptoms can include limb swelling, venous claudication, pain, skin changes, poor dialysis-access function, or venous congestion. Imaging such as ultrasound, computed-tomography venography, magnetic-resonance venography, catheter venography, or intravascular ultrasound can help define the obstruction before treatment. The decision to use balloon treatment alone or combine it with stenting depends on the cause, vessel size, residual narrowing, recoil, and expected long-term patency.

How Is Venoplasty Performed?

An interventional specialist obtains venous access, commonly through a vein in the groin, neck, or arm, and advances a guidewire and catheter to the stenosis under imaging guidance. Contrast venography or intravascular ultrasound can be used to confirm the location and severity of the narrowing. A balloon catheter is positioned across the stenosis and inflated to enlarge the vein, sometimes more than once with progressively sized balloons. If the vein does not remain adequately open, a stent can be placed and expanded with another balloon.

What Is Recovery Like After Venoplasty?

Most patients are monitored for a short period after the procedure while the access site, circulation, and symptoms are checked. Mild bruising, soreness, or swelling at the catheter-entry site can occur for several days. Activity restrictions are usually brief, although the schedule depends on the access site, anticoagulation plan, and whether a stent was placed. Follow-up imaging can be used to assess venous patency and detect recurrent stenosis.

What Are the Risks and Complications?

Possible complications include bleeding, hematoma, infection, contrast reaction, venous thrombosis, and injury at the catheter-access site. Balloon inflation can rarely tear or rupture the treated vein and can require urgent stenting or another intervention. The vein can recoil or narrow again over time, particularly when the underlying compression or scarring persists. Stent placement adds risks such as migration, thrombosis, fracture, or in-stent restenosis depending on location and device type.

Frequently Asked Questions About Venoplasty

Is venoplasty the same as venous stenting?

No. Venoplasty uses a balloon to widen a vein, while venous stenting places a permanent scaffold inside the vessel. The two procedures are often combined when balloon treatment alone does not keep the vein open.

What imaging is used during venoplasty?

Catheter venography is commonly used, and intravascular ultrasound can provide detailed measurements of the vein and stenosis from inside the vessel.

Can a vein narrow again after venoplasty?

Yes. Recoil and restenosis can occur after balloon treatment, especially in chronic or compressive lesions, which is one reason some patients require stenting or repeat treatment.

Is venoplasty an open operation?

No. It is usually performed through a small catheter puncture in a vein rather than through a large surgical incision.

References

A systematic review of venoplasty versus stenting for the treatment of central vein obstruction in ipsilateral hemodialysis access. PubMed. https://pubmed.ncbi.nlm.nih.gov/33667742/. Date Accessed September 11, 2026.

Central vein stenosis in hemodialysis vascular access: clinical manifestations and contemporary management strategies. PubMed. https://pubmed.ncbi.nlm.nih.gov/38022724/. Date Accessed September 11, 2026.

A comparison between intravascular ultrasound and venography in identifying key parameters essential for iliac vein stenting. PubMed. https://pubmed.ncbi.nlm.nih.gov/31196766/. Date Accessed September 11, 2026.

Society of Interventional Radiology Position Statement on the Management of Chronic Iliofemoral Venous Obstruction with Endovascular Placement of Metallic Stents. PubMed. https://pubmed.ncbi.nlm.nih.gov/37330211/. Date Accessed September 11, 2026.

Comparison of Percutaneous Transluminal Angioplasty with Stenting for Treatment of Central Venous Stenosis or Occlusion in Hemodialysis Patients: A Systematic Review and Meta-analysis. PubMed. https://pubmed.ncbi.nlm.nih.gov/31900506/. Date Accessed September 11, 2026.