}
เวลาทำการ วันจันทร์-วันศุกร์ เวลา 17.30-20.30น. วันเสาร์ เวลา 09.00-12.00น.

คลินิกหมอกิตติพันธุ์-หมออมราภรณ์ ติดต่อเรา

Dr.KITTIPAN Dr.AMARAPORN

Dialysis vessel

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.