ARTERIOVENOUS FISTULA FOR HEMODIALYSIS
An arteriovenous fistula is considered the best choice for hemodialysis. It is formed from its own vessels, which ensures optimal blood flow, and also minimizes the risk of infection. To create an arteriovenous fistula, the surgeon connects an artery and vein under the skin of the forearm and or upper arms. Fistula maturation takes 6-8 weeks. This period of time is necessary for the fistula to heal and to change the size and structure of the patient's veins. It is recommended to establish an arteriovenous fistula approximately 6-8 weeks before the start of its use. For patients with diabetes mellitus, as well as thin and weak veins 4-6 months before the start of its use.
ARTERIOVENOUS PROSTHESIS FOR HEMODIALYSIS
An arteriovenous (AV) prosthesis is an access site formed by a special synthetic tube that connects a vein and an artery in your arm.
To create an AV prosthesis, the surgeon connects your artery to a synthetic prosthesis that connects the other side to your vein. The prosthesis is placed under the skin of the forearm or upper arm. Usually, the AV prosthesis can be used in 2-3 weeks.
An AV prosthesis is an excellent access alternative for people who have small or very branched veins.
Treatment with an AV prosthesis requires the same cannulation process as an AV fistula - the nurse places 2 needles into the prosthesis.
BASIC CARE OF ARTERIOVENOUS FISTULA AND PROSTHESIS
Immediately after the hemodialysis procedure:
You will be bandaged after the dialysis session, make sure the bandage is not tight if you have just started dialysis - do not remove the bandage for 24 hours;
After hemodialysis, keep your arm at rest, do not lift heavy things;
If bleeding occurs from the puncture site at home, a gauze swab should be applied, the bleeding site should be clamped for 10-15 minutes, then a bandage should be applied for 4-5 hours (it should not be tight, the noise of the fistula should persist);
Watch for the noise that comes from the fistula. It should be even, long and well audible;
If there are any changes in the location of the fistula, tell the medical staff: induration, redness, pus, cessation of noise.