When your kidneys lose the ability to filter and clean the blood,the fluid and waste can build up and poisan the body. This is Called Kidney(renal) Failure.
When This Happen dialysis may be needed The Most Common form of dialysis is called Haemodialysis.in Haemodialysis,blood from an artery in your arm flows through a thin plastic tube to a machine filters the blood working like an artificial kidney, to remove the extra fluids and waste from the blood. The cleaned blood then flows out of the machine through another tube placed into a nearby vein in the same arm. Most people have 3 dialysis sessions every week. Each session lasts about 3 or 4 hours.
Before you can begin hemodialysis there need to be a way to remove the blood from the body (a few ounces at a time) and then return it. You arteries and venis are usually too small, so you will need surgery to create a vascular access site.
You will most likely need some special tests to help the doctors decide the best type is vascular access and the best place to secure he access. The most common test is Doppler ultrasound.
Before surgery, you may have an elclectrocardiogram (ECG Or EXG), blood tests urine tests, and a chest x-ray to give your surgeon the latest information about your health. You may be given something to help you realx (a.mild tranquillizer) before you are taken into the operating room.
The surgeon will then create the A-V fistula or the A-V graf in one of your arms.