Welcome to the vascular access clinic. If you’re reading this, you or a loved one is likely preparing for hemodialysis due to renal failure. This information aims to provide information about dialysis vessel or the arteriovenous fistula (AVF), a vital step in this journey.
What is an Arteriovenous Fistula (AVF)?
An AVF is a surgical connection made between an artery and a vein, usually in the arm. This connection enlarges the vein over time, making it suitable for regular dialysis access.
The image shows the insertion of a needle into the arteriovenous fistula (AVF) for dialysis, where the waste-filled blood is sent into the dialysis machine, and then the cleaned blood is returned to the patient.
Why Do You Need an AVF?
Consistent and efficient dialysis requires a robust and reliable access point to your bloodstream. An AVF offers: Durability: Can last for several years. Lower Infection Risk: Less prone to infections than other dialysis access methods. Optimal Blood Flow: Ensures efficient dialysis.
The image shows the creation of a permanent dialysis access (AVF) in the right upper arm, where the arteriovenous fistula is visible as a raised area.
The image shows the creation of a dialysis access (AVF) at the left wrist, where the arteriovenous fistula is clearly and beautifully visible as a raised area.
This image showed Lt leg AVF
The image shows a patient with a temporary dialysis catheter placed in the right neck. Notice that the temporary catheter has external tubing, which is uncomfortable and prevents the patient from showering.
- The Procedure: Preparation for AVF
You might be asked to fast for a few hours before the procedure. Ensure you follow any specific instructions provided by your healthcare team. During the Surgery: The procedure, under local anesthesia, lasts 1-2 hours. You’ll be awake but won’t feel pain. Post-Procedure: You’ll be observed for a short period before being discharged.
- Risks and Complications
While AVF creation is generally safe, there are potential risks: Immediate: Bleeding, infection. Later on: Fistula might not mature, clotting, abnormal connections to nearby tissues. Always reach out to your healthcare provider with any concerns.
- After the Procedure: Recovery: Minor discomfort is expected, which usually subsides in a few days. Monitoring: Familiarize yourself with the “thrill” (vibration) of the fistula. Any change might indicate a problem. Dialysis Use: The fistula needs weeks to months to mature before it’s ready for dialysis.
- Caring for Your AVF
Cleanliness: Keep the area clean and dry. Avoid Pressure: Don’t sleep on the AVF arm or wear tight clothing/jewelry. Medical Precautions: No blood draws or blood pressure measurements on the AVF arm.
- Advantages of AVF
Beyond the medical benefits, an AVF: Enhances Dialysis Efficiency: Ensuring toxins (waste product from your metabolism) are effectively removed. Promotes Independence: Once mature, AVFs are straightforward to use during dialysis.
Frequently Asked Questions:
– Will it hurt?
You might feel slight discomfort post-procedure, which usually fades quickly.
– Appearance Concerns?
The area might be raised and more visible but is a lifeline for dialysis patients.
This show Rt forearm AVF which does not appear unsightly in any way
– What is an Arteriovenous Graft (AVG)?
An AVG is a surgically implanted synthetic tube used to connect an artery to a vein, typically in the arm or leg. This graft acts as a conduit for blood to flow from the artery through the graft and back to the vein, facilitating hemodialysis.
– Why Do You Need an AVG?
Consistent and efficient dialysis requires a robust and reliable access point to your bloodstream. When an arteriovenous fistula (AVF) isn’t suitable especially lack of any surface vein, an AVG offers:
Rapid Use: Can be used sooner than an AVF after placement.
Durability: Designed to last for several years, though typically not as long as AVFs.
Optimal Blood Flow: Ensures efficient dialysis.
We understand that starting dialysis is a significant transition. Our team is here to guide and support you every step of the way. Always reach out with any questions or concerns.