What is a disadvantage of AV grafts?

The statement that AV grafts increase the risk of stenosis and clotting is accurate and represents a significant disadvantage of using arteriovenous grafts for hemodialysis access. AV grafts are created by connecting an artery and a vein with a synthetic tube, which facilitates access for hemodialysis.

However, this process can lead to complications. The synthetic material may not integrate well with the body’s tissues, leading to changes in blood flow dynamics. These changes can promote the formation of blood clots within the graft and may also cause narrowing, known as stenosis, at the site where the graft connects to the blood vessels. Such complications can hinder the effectiveness of dialysis and necessitate further interventions, like angioplasty or surgical revision.

This understanding of the disadvantages of AV grafts highlights the importance of monitoring and managing patients who have them, as well as considering alternative access options that may have a better risk profile.