Maintenance hemodialysis is an alternative therapy to maintain the life of uremic kidney friends with renal failure, and good vascular access is a primary condition to ensure the smooth progress of dialysis.
At present, arteriovenous fistula has become the most commonly used vascular access for hemodialysis patients. The advantages of internal fistula are that infection, thrombosis and other complications rarely occur, long service life, kidney friends can move freely, and can bathe or even swim.
It can be said that arteriovenous internal fistula is the "lifeline" for the survival of hemodialysis patients. Protecting the internal fistula and maximizing the service life of the internal fistula, obtaining sufficient blood flow and ensuring effective dialysis effect are the basis for prolonging the life of hemodialysis patients and improving the quality of life. Therefore, experts suggest that hemodialysis patients should do a good job of self-care.
First of all, nephrologists should pay attention to protecting their own internal fistula, and self-check whether the fistula has tremor or vascular murmur 2-3 times a day to avoid fistula occlusion. If fistula tremor or vascular murmur disappears and pain is found, immediately go to the hospital for treatment.
Secondly, keep the arm clean before dialysis, and avoid contact with water at the puncture site for 24 hours after dialysis. After dialysis, press the puncture point with a sterile gauze ball, then quickly pull out the needle and wrap it with a 3cm wide elastic tourniquet. The pressure of pressing should not be bleeding and can touch the pulse. Too tight or too long bandage can easily lead to thrombosis.
In addition, 24 hours after the end of dialysis, 2-3 times a day, 20-30 minutes each time, use hot water bags or hot towels not more than 50 degrees Celsius to compress the limb on the fistula side, promote blood circulation, promote needle healing, soften blood vessels, prevent arteriosclerosis and stenosis, and extend the service life of the internal fistula.
In addition, during dialysis, you can wear a wrist guard or elastic bandage with appropriate elasticity to compress the vasodilation site and prevent the formation of aneurysm.