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Renal Artery Stenting – Procedures

Patient Guide to Renal Artery Stenting

What is Renal Artery Stenting?

Renal Artery Stenting is a medical procedure designed to treat narrowing (stenosis) of the renal arteries, the blood vessels that supply the kidneys.

Stenosis in these arteries can lead to reduced blood flow to the kidneys, potentially causing hypertension (high blood pressure) or worsening existing hypertension.

The procedure involves the placement of a stent—a small, mesh-like tube—in the narrowed segment of the renal artery to restore blood flow and improve kidney function.


Good Candidates for Renal Artery Stenting:

Renal Artery Stenosis:
Individuals with significant narrowing of one or both renal arteries.

Uncontrolled Hypertension:
Patients with high blood pressure that is difficult to control with medications alone.

Renal Dysfunction:
Individuals with impaired kidney function due to reduced blood flow.

Presence of atherosclerosis (hardening of the arteries) affecting the renal arteries.

Fibromuscular Dysplasia:
Patients with fibromuscular dysplasia, a condition characterized by abnormal cell development in the artery walls.

Recurrent Heart Failure:
Individuals with recurrent heart failure or fluid retention due to renal artery stenosis.

Resistant Edema:
Persistent fluid retention or edema that does not respond well to diuretic medications.

Flank Pain or Abdominal Bruit:
Presence of flank pain or an abdominal bruit (a sound caused by turbulent blood flow) indicating potential renal artery stenosis.

Intolerance to Medications:
Patients who cannot tolerate or do not respond well to antihypertensive medications.

Individualized Assessment:
Each case is unique, and candidacy for renal artery stenting is determined through thorough evaluation by a healthcare professional.


FAQ’s on Renal Artery Stenting

Q. Is Renal Artery Stenting a Surgical Procedure?
A. No, renal artery stenting is a minimally invasive procedure performed through catheters and does not involve open surgery.

Q. How Long Does the Procedure Take?
A. The procedure typically takes 1 to 2 hours, but the overall time may vary.

Q. Is Anesthesia Used During Renal Artery Stenting?
A. Local anesthesia is commonly used, and sedation may be administered to help the patient relax.

Q. What Happens During the Stenting Procedure?
A. A catheter is threaded through blood vessels to the site of stenosis, and a stent is placed to widen the narrowed artery.

Q. How Long is the Recovery Period?
A. Most patients can resume normal activities within a few days to a week.

Q. What are the Risks Associated with Renal Artery Stenting?
A. Risks include bleeding, infection, blood vessel injury, or complications related to the stent. Serious complications are rare.

Q. Can Renal Artery Stenosis Recur After Stenting?
A. While restenosis can occur, it is relatively uncommon, and the procedure often provides long-term benefits.

Q. Is Renal Artery Stenting Painful?
A. Patients may experience mild discomfort during the procedure, but pain is generally well-managed with anesthesia.

Q. Can Renal Artery Stenting Improve Kidney Function?
A. Yes, by restoring blood flow, renal artery stenting can improve kidney function in some cases.

Q. How Soon Will Blood Pressure Improve After Renal Artery Stenting?
A. Blood pressure improvement varies among individuals, but many experience a reduction shortly after the procedure.


Symptoms Requiring Renal Artery Stenting

Resistant Hypertension:
High blood pressure that is difficult to control with medications.

Flank Pain:
Pain in the side or back, often indicating reduced blood flow to the kidneys.

Recurrent Fluid Retention:
Persistent edema or fluid retention that does not respond well to diuretic medications.

Renal Dysfunction:
Impaired kidney function due to reduced blood flow.

Abdominal Bruit:
The presence of an abdominal bruit, a sound caused by turbulent blood flow in the renal arteries.

Recurrent Heart Failure:
Occurrence of heart failure or fluid retention related to renal artery stenosis.

It’s important to note that symptoms and candidacy for renal artery stenting should be evaluated by our physicians, and decisions regarding treatment should be made on an individual basis.


Early intervention can contribute to improved outcomes and better management of associated health issues.


Please contact the Vascular Institute of Ohio friendly office staff for an appointment or consultation with one of our physicians.