• Jonas Nygren, Anders Thorell, and Olle Ljungqvist.
• Centre of Gastrointestinal Disease, Ersta Hospital, PO Box 4622, SE-116 91 Stockholm, Sweden. jonas.nygren@ersta.se
• Curr Opin Clin Nutr Metab Care. 2003 Sep 1;6(5):593-7.

Purpose Of ReviewConventional perioperative care includes a period of semistarvation before bowel function returns and adequate oral intake is allowed. It has been clearly shown that there is no need for restriction in oral intake after, at least lower, gastrointestinal surgery, and that early oral feeding does not increase the risk for dehiscense of the anastomosis. In contrast, early feeding reduces postoperative complications. Even if early oral intake is allowed, however, it is common that side effects such as nausea and vomiting prevent patients from reaching the target energy intakes. Thus, developing routines and treatments that promote sufficient early oral intake after surgery and maintain adequate energy intake in the postoperative period are probably of great importance for the outcome from surgery.Recent FindingsThere are a number of factors which may facilitate early oral intake after gastrointestinal surgery including effective pain relief using epidural anaesthesia while avoiding opioids, minimizing sodium and fluid administration perioperatively and substantially reducing preoperative fasting. In addition, sufficient preoperative information, intensive mobilization, energy-dense hospital food and oral supplements may all contribute to improved energy intake after surgery.SummaryIn general, there is a great need for randomized controlled trials examining factors important for the regulation of oral intake after surgery and also the effects of early oral intake after upper gastrointestinal surgery. Future areas of research may also include regulation of appetite and use of peripherally acting opioid antagonists.

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