The maintenance of appropriate nutrition in patients with an acute and chronic illness is known to be a fundamental part of patient care. Both enteral and parenteral routes can be used for nutritional support but there are insufficient randomized controlled trials comparing these routes in various disease states Parenteral nutrition, which was earlier synonymous with TPN is being reviewed with new interest again, with the concept of partial parenteral nutrition, that is, simultaneous intravenous nutrition with enteral nutrition.
