Parenteral nutrition by peripheral vein, portal vein or central venous catheter?

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Abstract
Different venous accesses used for parenteral nutrition are described. The most important complications and possibilities for prevention are discussed according to both literature and personal experience. As a result, peripheral venous access is recommended for short‐term parenteral nutrition (up to 8 days), whereas central venous access should be used to deliver high caloric loads during extended periods of time. Portal venous access does not appear to have a place in parenteral nutrition to date.