A. Kidney failure is a very broad category that has multiple causes. The most common causes include high blood pressure and diabetes. Dialysis, not surgery, is the principal treatment for kidney failure.
Dialysis removes the toxic byproducts that used to be removed by the patients' own kidneys.
The best type of dialysis and catheter depend on the individual. Often, acute kidney failure can be treated with its function recovered, while chronic kidney failure is usually irreversible. Since it is difficult to say the worst kidney problem, one type would be metastatic kidney cancer. Hope this helps some. Heather Orey Copyright 1998-2001 CME, Inc.