An arteriovenous fistula is the best long-term access for haemodialysis and can last years with proper care. Key rules: check the thrill daily, never allow blood-pressure readings or blood draws on that arm, and don't sleep on it. Loss of the thrill needs same-day contact with the doctor to save it.
For a dialysis patient, the fistula is not just an operation; it is the lifeline used three times a week. Good care can keep it working for many years.
Why a fistula is better than a catheter
A neck dialysis catheter is a temporary solution, with higher risks of infection, clots and central vein narrowing. An AV fistula uses the patient's own vessels, has fewer complications and lasts longer, so it should be created well before dialysis starts.
Right after creation
- Keep the arm raised on a pillow in the first days to reduce swelling.
- Keep the wound clean and dry until the stitches come out.
- Start the hand exercises your doctor explains, such as squeezing a soft ball, to help the vein mature.
- The fistula needs weeks before it can be used.
Daily rules
- Check the thrill daily: place your fingers over the fistula to feel the buzz, and learn what normal feels like.
- No blood-pressure cuff, blood draws or cannula on the fistula arm.
- No pressure: no tight watch or sleeves, don't sleep on the arm, don't hang heavy bags on it.
- Hygiene: wash the arm before every dialysis session.
- Avoid dehydration and very low blood pressure, which can cause the fistula to clot.
Signs that need urgent contact
- Loss or clear weakening of the thrill.
- Bleeding from the access that doesn't stop with pressure.
- Redness, warmth and pus (infection).
- A cold, pale or very painful hand.
- Increasing swelling of the arm or face.
Treatable problems
Narrowing can be treated by balloon angioplasty, clots removed endovascularly or surgically, and large aneurysms repaired. Regular Doppler checks catch narrowing before the fistula stops. Read more about dialysis access.
Frequently asked questions
How long does a dialysis fistula last?
With good care and follow-up it can work for many years, and many problems can be fixed endovascularly.
What if the thrill disappears?
Contact the vascular surgeon the same day; saving the fistula is easier the sooner it is treated.
When can a new fistula be used?
It needs weeks to mature; the doctor sets the first use after examining it.
Content on this website is for awareness only and does not replace a specialist medical examination.