What Is an AV Anastomosis?
An AV anastomosis, or arteriovenous anastomosis, is a connection between an artery and a vein. It may occur naturally in certain parts of the body or be surgically created for medical purposes, such as providing vascular access for hemodialysis. An anastomosis allows blood to flow directly between the artery and vein.
Surgically created AV anastomoses are commonly used to create AV fistulas for long-term dialysis treatment.
Why AV Anastomosis Matters
A healthy AV anastomosis provides dependable blood flow for dialysis and supports long-term treatment for people with kidney failure. Natural AV anastomoses also help regulate blood flow and body temperature in some tissues.
Common Medical Uses
- Creation of AV fistulas for hemodialysis
- Vascular surgery
- Blood vessel reconstruction
- Restoring circulation after injury
Possible Complications
- Infection
- Blood clots
- Narrowing of the blood vessel (stenosis)
- Bleeding
- Reduced blood flow
How Is an AV Anastomosis Evaluated?
Healthcare providers assess AV anastomoses through physical examinations, ultrasound, Doppler studies, angiography, and routine monitoring of blood flow.
How Home Care Can Help
Home care professionals help protect the surgical site, monitor for signs of infection or reduced circulation, educate individuals about proper care, and encourage routine follow-up with healthcare providers.
Home Care Tip
If you have a surgically created AV anastomosis for dialysis, check the site every day and report any changes in blood flow, swelling, or signs of infection immediately.
Frequently Asked Questions About AV Anastomosis
Is an AV anastomosis the same as an AV fistula?
An AV fistula is a specific type of surgically created AV anastomosis used primarily for hemodialysis.
Can an AV anastomosis fail?
Yes. Blood clots, narrowing, or infection may reduce blood flow and require medical treatment.
Can home care help after AV anastomosis surgery?
Yes. Home care professionals provide monitoring, education, and support to help promote healing and reduce the risk of complications.
When to Contact Your Healthcare Provider
Contact your healthcare provider immediately if you develop redness, warmth, drainage, severe pain, bleeding, or notice the absence of a thrill or bruit at the surgical site.