title: Omentoplasty in rectal cancer surgery prolongs post-operative ileus.
abstract: OBJECTIVE
  Omentoplasty is frequently used as a safeguard in rectal cancer surgery for wrapping the anastomosis or filling up the pelvic cavity. The omentum is known for its infection defence and haemostatic and angiogenic properties. A disadvantage was hypothesized to be prolonged post-operative ileus, as omentoplasty interrupts the blood flow from an epiploic artery to the stomach.
  
  
  METHODS
  Patients who had had an uncomplicated surgical treatment for primary rectal cancer between January 2006 and March 2007 were included. Clinical parameters of post-operative ileus were collected and compared between procedures with a concomitant omentoplasty (n = 31) and without (n = 20).
  
  
  RESULTS
  Patients needed their gastric tube significantly longer after omentoplasty than those without (3.9 vs 1.6 days, p < 0.001). Similar significant results were found for time to normal diet (p = 0.004), time to first discharge of faeces (p = 0.007), need for parenteral feeding (p = 0.036) and length of hospital stay (p = 0.008). Furthermore, there was a non-significant trend for more days to first discharge of air (3.4 vs 2.4 days, p = 0.165). There were no significant differences in patients' and procedure characteristics, except for more low anterior resections in the group without an omentoplasty (p < 0.001). None of these characteristics had any clinically relevant interference with the parameters of post-operative ileus.
  
  
  CONCLUSIONS
  A trend for prolonged post-operative ileus was found in patients who underwent an omentoplasty concomitant with their treatment for primary rectal cancer. When assessing the importance of omentoplasty in the future, post-operative ileus should be taken into account.
authors.affiliation: Department of Surgery, Catharina Hospital Eindhoven, Michelangelolaan 2, 5623 EJ Eindhoven, The Netherlands.
authors.forename: Y L B
authors.initials: YL
authors.lastname: Klaver
authors.forename: S W
authors.initials: SW
authors.lastname: Nienhuijs
authors.forename: G A P
authors.initials: GA
authors.lastname: Nieuwenhuijzen
authors.forename: H J T
authors.initials: HJ
authors.lastname: Rutten
authors.forename: I H J T
authors.initials: IH
authors.lastname: de Hingh
mesh_terms: D000368:Aged; D003672:Defecation; D013505:Digestive System Surgical Procedures / Q000009:adverse effects*; D004435:Eating; D005260:Female; D005769:Gastrointestinal Motility; D006801:Humans; D045823:Ileus / Q000209:etiology* / Q000503:physiopathology; D007441:Intubation, Gastrointestinal; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D009852:Omentum / Q000601:surgery*; D010288:Parenteral Nutrition; D012004:Rectal Neoplasms / Q000503:physiopathology / Q000601:surgery*; D012189:Retrospective Studies; D018570:Risk Assessment; D013997:Time Factors; D016896:Treatment Outcome