AV Fistula

🩸 AV Fistula (Arteriovenous Fistula)

An AV Fistula is a surgical connection made between an artery and a vein, usually in the arm, to provide vascular access for hemodialysis. It is considered the best and most durable option for patients with chronic kidney failure who need long-term dialysis.


⚙️ How is it created?

  • A vascular surgeon performs a minor surgery to connect an artery to a nearby vein.

  • This connection causes the vein to become larger and stronger, making it suitable for repeated needle insertions during dialysis.

  • Common sites: forearm (radiocephalic fistula) or upper arm (brachiocephalic fistula).


⏱️ Maturation Time:

  • The fistula takes about 4 to 8 weeks (or longer) to mature and become usable for dialysis.

  • During this time, the vein enlarges and the blood flow increases.


Advantages of AV Fistula:

  • Longest lifespan among dialysis access types

  • Lower risk of infection

  • Better blood flow, which leads to more effective dialysis

  • Fewer complications compared to catheters or grafts