title: Routine ileal intubation during screening colonoscopy: a useful maneuver?
abstract: BACKGROUND
  The utility of routine ileoscopy as a component of screening colonoscopy is unclear. Many endoscopists believe that routine intubation of the terminal ileum is a requirement for a full-screening colonoscopy. The authors have hypothesized that routine ileal intubation during screening colonoscopy is of little diagnostic value.
  
  
  METHODS
  A retrospective analysis was performed using a prospectively maintained colonoscopy database of patients identified as undergoing a screening colonoscopy. All had undergone intubation of the terminal ileum at a tertiary referral center. Those who had undergone screening colonoscopy at the Mayo Clinic (Rochester, MN) were entered prospectively into a database. The study identified 6,408 patients who met the criteria of having terminal ileal intubation at the time of screening colonoscopy. The main outcome measured was abnormality of the terminal ileum at ileal intubation.
  
  
  RESULTS
  Ileoscopy showed grossly abnormal findings for only 1% of the patients, and pathologic abnormalities were identified for only 0.3% of all the patients.
  
  
  CONCLUSIONS
  The findings support the conclusion that intubation of the terminal ileum should not be a required part of screening colonoscopy.
authors.affiliation: Department of Surgery, University of Wisconsin, 600 Highland Avenue, Madison, WI 53713, USA.
authors.forename: Gregory
authors.initials: G
authors.lastname: Kennedy
authors.forename: David
authors.initials: D
authors.lastname: Larson
authors.forename: Bruce
authors.initials: B
authors.lastname: Wolff
authors.forename: Desmond
authors.initials: D
authors.lastname: Winter
authors.forename: Bret
authors.initials: B
authors.lastname: Petersen
authors.forename: Mark
authors.initials: M
authors.lastname: Larson
mesh_terms: D000368:Aged; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000175:diagnosis; D016208:Databases, Factual / Q000706:statistics & numerical data; D003955:Diagnostic Tests, Routine; D016099:Endoscopy, Gastrointestinal / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D007077:Ileal Diseases / Q000175:diagnosis; D007079:Ileitis / Q000175:diagnosis; D007082:Ileum; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D019310:Pseudolymphoma / Q000175:diagnosis; D012189:Retrospective Studies; D019564:Unnecessary Procedures