Vittorio E. Andreucci of keeping alive patients in terminal chronic Initially created with the purpose renal failure, dialysis has undergone improvements in methodology, and its final goal has become complete health rehabilitation and optimization of the quality of life of chronic dialysis patients. To achieve this, many investigators have attempted to increase dialysis efficiency and at the same time shorten dialysis time. Their main concern was, obviously, patient safety: the Latin proverb 'primum non nocere' is still valid all over the world. Thus, when clinical observations of the first...