Hepatic complications of total parenteral nutrition.

Total parenteral nutrition is now widely used in the treatment of nutritional depletion. Among problems that persist in the use of this technique, the development of hepatic abnormalities has received increasing attention. In this review, the current understanding of the pathogenesis and management of liver injury during short-term total parenteral nutrition is summarized. These complications include fatty liver, cholestasis, and nonspecific triaditis. The experience with hepatic complications during long-term total parenteral nutrition is also reviewed. Evidence that progressive liver injury develops in some patients requiring lifelong total parenteral nutrition raises a serious dilemma for both patients and physicians. Better understanding of the pathogenesis is required before appropriate treatment can be prescribed.