The different types of AV fistula for dialysis depend on the artery and vein used. These are-Radiocephalic Fistula- This is a type of fistula in the arm. The connection made is between the radial artery and the cephalic vein.Brachiocephalic Fistula- This fistula in the arm connects the brachial artery to the cephalic vein. This fistula is located at or above elbow level.BTB Fistula (Brachial artery-To-Transposed cephalic vein)-BTB fistula is considered only when a radiocephalic fistula or brachiocephalic fistula cannot be created.