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Hemodialysis, also spelled haemodialysis, or simply dialysis, is a process of filtering the blood of a person whose kidneys are not working normally. This type of dialysis achieves the extracorporeal removal of waste products such as creatinine and urea and free water from the blood when the kidneys are in a state of kidney failure.
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.
Catheter access, sometimes called a CVC (central venous catheter), consists of a plastic catheter with two lumens (or occasionally two separate catheters) which is inserted into a large vein (usually the vena cava, via the internal jugular vein or the femoral vein) to allow large flows of blood to be withdrawn from one lumen, to enter the dialysis circuit, and to be returned via the other lumen.
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.
The mechanism of many of the risks and complications related to failure of the Glenn bidirectional shunt is thought to be thrombosis. Right-side dominant circulation, elevated pulmonary vascular resistance, and prolonged operative and recovery time are the major factors that increase the risk of complications and failure.
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]
Graft and patient survival after transplantation have also improved over time, with 10 year graft survival rates for deceased donor transplants increasing from 42.3% in 1996–1999 to 53.6% in 2008-2011 and 10 year patient survival rate increasing from 60.5% in 1996–1999 to 66.9% in 2008–2011. [79]
Graft infection from a Bentall procedure presents similarly to many infections after a major cardiac surgery, with indications in various degrees of severity. Symptoms can include fever, chills, loss of appetite, weight loss, malaise with clinical indications including septic emboli, abscess, left ventricular fistulae, transient ischemic attack.