✦ Renal Artery Stenosis Treatment

Surgical Renal Artery Bypass

Q: When is open bypass preferred over stenting?

Open bypass is preferred for complex branch vessel disease, aortic pathology requiring concomitant repair, total occlusion, or failed endovascular attempts.

Q: What conduit is used for renal artery bypass?

Autologous saphenous vein is preferred; synthetic PTFE grafts or native arterial reconstructions (hepatic, splenic artery) are alternatives. Your consultant will provide specific guidance based on your individual clinical situation and recovery.

Q: What are the risks of open renal artery bypass?

Risks include bleeding, graft thrombosis, myocardial infarction, and wound complications; mortality is below 2% in experienced vascular centres. Your consultant will provide specific guidance based on your individual clinical situation and recovery.

Open Vascular Bypass to Restore Renal Blood Flow

3–5 Hours PROCEDURE

5–10 Days HOSPITAL STAY

>85% SUCCESS RATE

6–8 Weeks RECOVERY

What is Surgical Renal Artery Bypass?

Surgical Renal Artery Bypass creates a vascular conduit — using saphenous vein, synthetic graft, or hepatic/splenic artery — that bypasses the stenotic segment of the renal artery, restoring normal blood flow to the kidney. Open bypass is reserved for patients with complex anatomy not suitable for endovascular stenting, failed PTRA, or total renal artery occlusion. It provides durable revascularisation with excellent long-term patency. The procedure is performed under general or spinal anaesthesia with a hospital stay of 5–10 Days. Success rates reach >85% in appropriately selected patients at experienced centres.

Patients with renal artery stenosis not amenable to PTRA, complex branch vessel disease, failed prior stenting, or total renal artery occlusion requiring open revascularisation. Patients must be adequately fit for anaesthesia and free from active systemic infection before proceeding.

How the Procedure Works

Incision & Access

Midline or flank incision; retroperitoneal approach to the aorta and renal artery.

Conduit Preparation

Stenotic segment assessed; bypass conduit (saphenous vein or synthetic graft) prepared.

Anastomosis

Proximal anastomosis to aorta or superior mesenteric artery; distal anastomosis to renal artery beyond stenosis.

Flow Confirmation

Clamps released; graft flow confirmed with intraoperative Doppler ultrasound.

Haemostasis & Closure

Haemostasis secured; drains placed; wound closed in anatomical layers.

Outcomes

3–5 HoursDURATION

5–10 DaysHOSPITAL STAY

>85%SUCCESS RATE

6–8 WeeksFULL RECOVERY

Who Needs This Treatment?

→Definitive revascularisation for complex renal artery stenosis not amenable to endovascular treatment.
→Suitable for total occlusion and branch vessel disease where stenting is not technically feasible.
→Long-term patency superior to balloon angioplasty alone in complex lesions.
→Allows bilateral renal artery repair in one operation.
→Direct vessel assessment and tailored repair under open vision.
→Alternative when endovascular stenting has failed or is contraindicated.

"Open renal artery bypass is complex surgery, but in the right patient it provides revascularisation that endovascular techniques cannot achieve. Long-term patency and renal function preservation make it a worthwhile intervention."

— — Dr. Vipin Reddy, Consultant Urologist, Andrologist & Renal Transplant Surgeon

Common Questions

Frequently Asked

When is open bypass preferred over stenting?+

What conduit is used for renal artery bypass?+

What are the risks of open renal artery bypass?+

Not sure which treatment is right for you?

Book a consultation with Dr. Vipin Reddy and get a personalised treatment plan.

WhatsApp Us ← Back to Treatments