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An arteriovenous fistula is an abnormal connection or passageway between an artery and a vein. [1] It may be congenital , surgically created for hemodialysis treatments, or acquired due to pathologic process, such as trauma or erosion of an arterial aneurysm .
In hemodialysis, vascular access is used to remove the patient's blood so that it can be filtered through the dialyzer. Three primary methods are used to gain access to the blood: an intravenous catheter, an arteriovenous fistula (AV) or a synthetic graft. In the latter two, needles are used to puncture the graft or fistula each time dialysis ...
Vascular access steal syndrome is a syndrome caused by ischemia (not enough blood flow) resulting from a vascular access device (such as an arteriovenous fistula or synthetic vascular graft–AV fistula) that was installed to provide access for the inflow and outflow of blood during hemodialysis.
An arteriovenous graft serving as a fistula for hemodialysis access. A vascular bypass is often created to serve as an access point to the circulatory system for hemodialysis. Such a bypass is referred to as an arteriovenous fistula if it directly connects a vein to an artery without using synthetic material. [citation needed]
A Cimino fistula, also Cimino-Brescia fistula, surgically created arteriovenous fistula and (less precisely) arteriovenous fistula (often abbreviated AV fistula or AVF), is a type of vascular access for hemodialysis.
Ischemic monomelic neuropathy (IMN) is an uncommon vascular access complication in hemodialysis patients that manifests as multiple mononeuropathies without clinical ischemia. [1] Ischemic monomelic neuropathy is most likely to affect patients who have had brachiocephalic vascular grafts, and it is characterized by symptoms of acute pain ...
Dialysis centers in the United States are rolling out COVID-19 antibody treatments this week, a new path for delivery of Eli Lilly and Regeneron drugs approved for emergency use but facing ...
Sometimes a fistula is deliberately surgically created as part of a treatment, for example in the case of an arteriovenous fistula for hemodialysis. [6] The treatment for a fistula varies depending on the type, cause, and severity of the fistula, but often involves surgical intervention combined with antibiotic therapy. In some cases the ...