AV Fistula for Dialysis
An AV fistula (AVF) is created for patients with chronic kidney disease or kidney failure who require dialysis—a process that cleans the blood using a machine.
When performed by an experienced vascular surgeon, an AV fistula serves as a dependable, long-term access for dialysis, lasting for years while lowering complications and enhancing overall quality of life.
Read on to learn more about AV fistulas and their vital role in supporting long-term dialysis care.
What Is an AV Fistula?
An arteriovenous fistula (AVF) is a surgically created connection between an artery and a vein, usually formed in the forearm or upper arm.
This connection allows blood to flow more strongly into the vein, creating a durable and dependable access point for repeated dialysis sessions. The increased blood flow also helps make dialysis more efficient and safer.
Because of these advantages, AV fistulas are regarded as the gold standard for long-term dialysis access as they:
- Offer steady blood flow for a smooth session.
- Have a lower risk of infection and clotting.
- Last longer than catheters or grafts.
Signs of Successful AV Fistula
An AV fistula typically requires about 4 to 6 weeks to mature before it can be used for dialysis. After healing, the following signs indicate that your AV fistula is functioning properly:
Bruit
A soft, continuous “whooshing” sound heard through a stethoscope, indicating smooth blood flow through the fistula.
Thrill
A gentle vibration or buzzing is felt on placing your fingers over the site due to turbulent blood flow.
Surgical Site
There is no pain or swelling.
There is no infection or redness around the area.
Smooth Dialysis
A successful AV fistula allows smooth and steady blood flow during dialysis.
Aftercare
After surgery, proper care helps your AVF heal and grow stronger.
- Keep the area clean and dry.
- Don’t lift heavy weights or sleep on that arm.
- Do hand-grip exercises using a soft ball.
- Avoid tight clothing or blood pressure cuffs on the same arm.
Follow Up
Regular follow-up visits are important to ensure adequate healing
- First visit (after 7 days): To assess wound healing and if the fistula is open (patent).
- Second visit (after 1 to 1.5 months): Before starting dialysis, to ensure the fistula is ready for use.
- Third visit (after 3 months): To check for any narrowing, blockage, or issues with blood flow.
If you notice pain, swelling, or anything unusual, consult your vascular surgeon right away.
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