title: Randomised trial of safety and efficacy of immediate postoperative enteral feeding in patients undergoing gastrointestinal resection.
abstract: OBJECTIVE
  To assess whether immediate post-operative enteral feeding in patients who have undergone gastrointestinal resection is safe and effective.
  
  
  METHODS
  Randomised trial of immediate post-operative enteral feeding through a nasojejunal tube v conventional postoperative intravenous fluids until the reintroduction of normal diet.
  
  
  METHODS
  Teaching hospitals in London.
  
  
  METHODS
  30 patients under the care of the participating consultant surgeon who were undergoing elective laparotomies with a view to gastrointestinal resection for quiescent, chronic gastrointestinal disease. Two patients did not proceed to resection.
  
  
  METHODS
  Nutritional state, nutritional intake and nitrogen balance, gut mucosal permeability measured by lactulose-mannitol differential sugar absorption test, complications, and outcome.
  
  
  RESULTS
  Successful immediate enteral feeding was established in all 14 patients with a mean (SD) daily intake of 6.78 (1.57)MJ (1622 (375) kcal before reintroduction of oral diet compared with 1.58 (0.14) MJ (377 (34) kcal) for those on intravenous fluids (P < 0.0001). Urinary nitrogen balance on the first postoperative day was negative in those on intravenous fluids but positive in all 14 enterally fed patients (mean (SD) - 13.2 (11.6) g v 5.3 (2.7) g; P < 0.005). There was no difference by day 5. There was no change in gut mucosal permeability in the enterally fed group but a significant increase from the test ratios seen before the operation in those on intravenous fluids (0.11(0.06) v 0.15 (0.12); P < 0.005). There were also fewer postoperative complications in the enterally fed group (P < 0.005).
  
  
  CONCLUSIONS
  Immediate postoperative enteral feeding in patients undergoing intestinal resection seems to be safe, prevents an increase in gut mucosal permeability, and produces a positive nitrogen balance.
authors.affiliation: Department of Cardiothoracic Surgery, University College London Medical School, Middlesex Hospital, London.
authors.forename: C S
authors.initials: CS
authors.lastname: Carr
authors.forename: K D
authors.initials: KD
authors.lastname: Ling
authors.forename: P
authors.initials: P
authors.lastname: Boulos
authors.forename: M
authors.initials: M
authors.lastname: Singer
mesh_terms: D004750:Enteral Nutrition / Q000009:adverse effects; D005260:Female; D005440:Fluid Therapy; D005767:Gastrointestinal Diseases / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D011182:Postoperative Care / Q000009:adverse effects / Q000379:methods*; D016896:Treatment Outcome