Angioplasty & Stenting

The aim is to restore blood flow through a focal narrowing or blockage using catheter-based techniques rather than open surgery. Depending on the vessel treated, the goal may be to relieve claudication or rest pain, heal a wound, protect a limb or organ, or reduce stroke risk. Intervention is only advised when the expected benefit outweighs the risks of continuing with medication and surveillance alone.

Typical indications include:

• Peripheral arterial disease causing limiting claudication, rest pain or tissue loss
• Renal or mesenteric artery stenosis
• Selected carotid artery disease
• Venous obstruction and other focal vascular lesions

Suitability depends on anatomy, symptom severity, the expected durability of treatment and general health. A lesion that can technically be treated does not always need treatment, and the surgeon weighs the likely course without intervention against each option.

Ultrasound, CT angiography or MR angiography usually maps the lesion before treatment. Kidney function, medications, allergies and bleeding risk are reviewed, and antiplatelet medication may be started beforehand. Written instructions cover fasting and any temporary changes to anticoagulant or diabetes medication. Stopping smoking and controlling blood pressure and infection before the procedure reduce risk.

Many procedures use local anaesthetic with sedation, although general anaesthesia may be required for complex intervention. A sheath is inserted into the vessel and contrast is used to map the circulation.

Angioplasty

A catheter carrying a small balloon is guided across the narrowed segment. Inflating the balloon widens the vessel and improves flow. Specialised balloons, including drug-coated or high-pressure devices, may be used in selected situations.

Stenting

A stent is a metal mesh tube placed inside the vessel to hold it open. Some stents are covered with graft material, while others are designed to stay flexible across moving arterial segments. Not every angioplasty needs a stent.

The plan can change once the on-table imaging is reviewed, and in selected cases endovascular and open techniques are combined.

The access site is compressed or closed with a device, and many patients walk within hours and go home the same day or after one night. Activity advice is tailored to the access site and treated vessel. Follow-up includes ultrasound surveillance of the treated segment, continued antiplatelet or anticoagulant medication where prescribed, and ongoing management of smoking, cholesterol, blood pressure and diabetes, because the underlying arterial disease continues even after successful treatment.

• Bleeding or bruising at the puncture site
• Injury to the artery or vein
• Clot formation or embolisation (debris travelling downstream)
• Contrast reaction or kidney stress
• Infection
• Re-narrowing (restenosis) and the need for repeat treatment
• Rarely, conversion to emergency open surgery

Your surgeon will explain which of these matter most in your situation and how they are minimised.

Alternatives to angioplasty and stenting depend on the condition being treated and may include medical therapy, structured exercise, surveillance, open bypass or a hybrid procedure. The choice is based on symptoms, lesion length, vessel quality, previous treatment, procedural risk and the durability expected from each option.

A stent is not required after every angioplasty. It is generally used when the vessel does not remain adequately open after balloon treatment or when additional structural support is needed. Patients should understand which vessel is being treated, the intended benefit, whether the procedure is aimed at symptom relief or limb protection, and what restrictions apply afterwards.

Re-narrowing can occur through scar formation or progression of vascular disease. Surveillance ultrasound and clinical review are used to identify changes before circulation becomes seriously compromised. If recurrence occurs, management may involve medication, closer observation, repeat endovascular treatment or bypass surgery, depending on the severity and the effect on symptoms or tissue health.

Yarra Vascular Surgeons performs angioplasty and stenting alongside a full range of open vascular surgery. Each case is assessed for anatomical suitability, procedural risk and expected durability, rather than automatically favouring the least invasive option.

Angioplasty and stenting can restore circulation through selected narrowed or blocked vessels without the incisions of open bypass surgery. Referrals and appointments can be arranged at our Heidelberg, Richmond and Epping rooms and satellite locations.