Dialysis fistula creation

Overview

A dialysis fistula is a surgical connection made between an artery and a vein, usually in your arm. This connection, called an arteriovenous fistula (AVF), allows blood to flow quickly and easily for hemodialysis — a treatment that cleans your blood when your kidneys can't.

Yes, this surgery is a routine procedure for people with advanced kidney disease who need long-term hemodialysis.

It is intended for people with kidney failure (end-stage renal disease) who have chosen hemodialysis as their treatment. Your doctor will check the health of your veins and arteries before deciding if a fistula is right for you.

Symptoms

Common symptoms

• After creation, you may feel a vibration (called a 'thrill') under your skin over the fistula — this is normal and means it's working.
• A 'bruit' — a humming sound heard with a stethoscope — is also normal.
• Mild swelling or bruising near the surgery site usually goes away in a few days.

Symptoms in children

• Children may have a smaller vein size, so the fistula might need extra time to mature.
• They may need a special ultrasound to check blood vessels before surgery.

Symptoms in older adults

• Older adults often have weaker veins or narrowed arteries, so healing may take longer.
• They may also have other health conditions that require careful planning with the surgical team.

Causes

Main causes

• Dialysis fistula creation is not a disease; it is a treatment for kidney failure. Kidney failure itself can be caused by diabetes, high blood pressure, glomerulonephritis (inflammation of the kidney filters), or polycystic kidney disease.

Risk factors

• Having diabetes or poorly controlled high blood pressure increases the chance of kidney failure and needing a fistula.
• Smoking, obesity, and a family history of kidney disease also raise your risk of needing dialysis access.

When to see a doctor

See a doctor urgently if:

• If you have any of the emergency symptoms listed above.
• If your arm becomes very painful, swollen, or the skin changes colour.

Book a routine appointment if:

• For regular checks with your kidney specialist (nephrologist) and the surgical team.
• If you notice changes in the thrill or bruit — even if not urgent — let your dialysis nurse or doctor know.

Diagnosis

Before creating a fistula, doctors evaluate your blood vessels with a physical exam and special imaging tests to find the best location. They also check your overall health to decide if a fistula is safe and likely to work well.

Tests that may be done

• Physical exam — feeling for pulses and listening for blood flow sounds.
• Ultrasound (duplex scan) — a painless test that shows the size and health of your arteries and veins.
• Sometimes a venogram — an X-ray with dye — is used to get a clearer picture of your veins.

What to expect at your appointment

The tests are usually done in a clinic or hospital and take about 30 to 60 minutes. You may be asked not to eat or drink for a few hours before a venogram. The results help your surgeon plan the safest and most effective fistula location.

Treatment

The main treatment is the surgical creation of the fistula itself, followed by time for it to mature. Most people have the surgery as a day case (go home the same day) under local anaesthetic or a light general anaesthetic. After healing, the fistula is used for each dialysis session.

Self-care at home

• Keep the surgical site clean and dry for 48 hours, then follow your nurse's instructions for washing.
• Do not lift heavy objects or sleep on the arm with the fistula.
• Check for the thrill (vibration) and bruit (sound) every day — let your doctor know if they change.
• Avoid having blood pressure taken or blood drawn from that arm.

Medical treatments

Some people may need minor procedures to help the fistula mature, such as balloon angioplasty (stretching a narrowed area) or ligation (tying off small side branches). These are done by an interventional radiologist or surgeon. Your doctor will discuss the best options based on your progress.

When is surgery considered?

The initial creation is a surgery. If the fistula fails to mature, clots, or develops other problems, additional surgery or procedures may be needed. In some cases, a different type of access — such as a graft or catheter — might be considered.

Living with this condition

Living with a fistula is manageable. You will learn to protect your arm and check it daily. Most people adapt quickly and continue their usual activities, with some precautions. Dialysis sessions are typically three times a week, each lasting about 4 hours.

Lifestyle tips

• Avoid carrying heavy bags or wearing tight clothing or jewellery on the fistula arm.
• Do not let anyone take blood pressure or draw blood from that arm.
• Keep the arm warm and dry, and moisturise the skin gently.

Diet and exercise

Your kidney doctor or dietitian will guide you on a kidney-friendly diet (low in salt, potassium, and phosphorus). Gentle exercise like walking is encouraged, but avoid heavy lifting or contact sports that could injure the arm.

Mental health and emotional wellbeing

Living with kidney failure and dialysis can be stressful. You may feel anxious, sad, or overwhelmed. It is normal. Talk to your healthcare team or a counsellor. If you are in crisis or thinking about harming yourself, please contact a mental health crisis line or call your local emergency number immediately.

Prevention

You can reduce the risk of needing a fistula by preventing or slowing kidney disease. That means controlling blood pressure, managing diabetes, eating a healthy diet, not smoking, and following your doctor's advice. If you already have a fistula, you can prevent complications by caring for it properly and attending regular check-ups.

Vaccines

Ask your healthcare provider about recommended vaccines (such as flu, pneumonia, and hepatitis B) — they are especially important for people with kidney disease.

Screening programmes

If you have a family history of kidney disease or conditions like diabetes or high blood pressure, ask your doctor about regular kidney function tests (blood and urine tests).

Complications

If left untreated

• If a fistula fails to mature or clots, it may need to be repaired or replaced, delaying your dialysis access.
• Infection can lead to serious illness and require antibiotics or hospitalisation.
• A blocked fistula or artery can cause arm pain, swelling, or damage to tissues.

Long-term outlook

Most people with a well-functioning fistula can use it for many years with proper care. While complications can happen, they are often treatable. Working closely with your healthcare team gives you the best chance for a successful fistula and a good quality of life on dialysis.

Find support

International organisations

• World Kidney Day
• International Federation of Kidney Foundations

Local organisations

• National Kidney Foundation (USA) · United States
• Kidney Care UK · United Kingdom

Helplines

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