Well, I'm pre-dialysis but had my fistula created back in March, so it is ready by now to be used when necessary (which won't be for a long time, I hope!
) I don't know anything about permacaths, but I would think that the only real issue is whether or not your fistula is ready to use. If it is fully mature, then I would guess you could start using it. Is your fistula mature yet?