What are the two most common complications of a dialysis graft access?
The most common problems you may experience with your dialysis access are infection, clotting that leads to low blood flow and bleeding. These complications can happen with AV fistulas, AV grafts and central venous catheters (CVCs).
What causes aneurysm in dialysis fistula?
Arteriovenous fistulae are prone to developing their own complications which include the formation of an aneurysm. Aneurysm formation may occur because of repeated punctures that can weaken the vein wall in some patients.
What is aneurysm in dialysis fistula?
Arteriovenous fistula aneurysms are defined by an expansion of the intimal, medial and adventitial layers of the vessel wall to a diameter of more than 18 mm. Treatment of arteriovenous fistula aneurysm is indicated if there is pain, risk of haemorrhage and flow disturbance (either low or high flow).
Does dialysis cause aneurysm?
Although true aneurysms in patients with dialysis access are uncommon, significant complications may occur as a consequence of their presence. These complications can be treated and the fistulas can usually be salvaged.
How long does a dialysis graft last?
AV grafts can be safely used in about two weeks, as no maturation of the vessels is necessary. Grafts have a lifespan of approximately 2 to 3 years but can often last longer.
What is an arteriovenous graft?
An arteriovenous (AV) graft is a deliberate connection between an artery and vein that is created by interposing graft material between them. A decision to choose an AV graft over another type of hemodialysis access is individualized based upon anatomy and life expectancy, among other factors.
How do you prevent a fistula aneurysm?
How can aneurysms be prevented? 4. After dialysis, place firm pressure on the needle sites using two fingers for at least 10 minutes. If you are holding your own sites, the second needle should not be pulled until the first needle site has stopped bleeding.
Can a dialysis fistula burst?
A rupture can happen any time with a fistula or graft.
How do you prevent a dialysis aneurysm?
Can a dialysis graft be removed?
Two patients (5.6%) experienced postoperative complications-a hematoma requiring evacuation and a superficial wound infection requiring oral antibiotics. Conclusions: Removal of symptomatic, unused AVFs can be performed safely in renal transplant recipients.
How long does it take for an AV graft to mature?
Arteriovenous fistulas can take between 6-12 weeks to mature and arteriovenous grafts can generally be used 2-3 weeks after surgery.
When would an arteriovenous graft be required?
For patients who require a chronic hemodialysis vascular access, an AV graft may be an appropriate choice as initial hemodialysis access, or as a secondary access if an AV fistula has failed to develop.