title: Quality control of colonoscopy procedures: a prospective validated method for the evaluation of professional practices applicable to all endoscopic units.
abstract: OBJECTIVE
  To produce valid information, an evaluation of professional practices has to assess the quality of all practices before, during and after the procedure under study. Several auditing techniques have been proposed for colonoscopy. The purpose of this work is to describe a straightforward original validated method for the prospective evaluation of professional practices in the field of colonoscopy applicable in all endoscopy units without increasing the staff work load.
  
  
  METHODS
  Pertinent quality-control criteria (14 items) were identified by the endoscopists at the Cochin Hospital and were compatible with: findings in the available literature; guidelines proposed by the Superior Health Authority; and application in any endoscopy unit. Prospective routine data were collected and the methodology validated by evaluating 50 colonoscopies every quarter for one year.
  
  
  RESULTS
  The relevance of the criteria was assessed using data collected during four separate periods. The standard checklist was complete for 57% of the colonoscopy procedures. The colonoscopy procedure was appropriate according to national guidelines in 94% of cases. These observations were particularly noteworthy: the quality of the colonic preparation was insufficient for 9% of the procedures; complete colonoscopy was achieved for 93% of patients; and 0.38 adenomas and 0.045 carcinomas were identified per colonoscopy.
  
  
  CONCLUSIONS
  This simple and reproducible method can be used for valid quality-control audits in all endoscopy units. In France, unit-wide application of this method enables endoscopists to validate 100 of the 250 points required for continuous medical training. This is a quality-control tool that can be applied annually, using a random month to evaluate any changes in routine practices.
authors.affiliation: Service de gastroentérologie, CHU Cochin, Faculté René-Descartes, Paris-V, 27, rue du faubourg Saint-Jacques, 75014 Paris, France. romain.coriat@cch.aphp.fr
authors.forename: R
authors.initials: R
authors.lastname: Coriat
authors.forename: E
authors.initials: E
authors.lastname: Pommaret
authors.forename: A
authors.initials: A
authors.lastname: Chryssostalis
authors.forename: S
authors.initials: S
authors.lastname: Viennot
authors.forename: M
authors.initials: M
authors.lastname: Gaudric
authors.forename: C
authors.initials: C
authors.lastname: Brezault
authors.forename: D
authors.initials: D
authors.lastname: Lamarque
authors.forename: H
authors.initials: H
authors.lastname: Roche
authors.forename: D
authors.initials: D
authors.lastname: Verdier
authors.forename: D
authors.initials: D
authors.lastname: Parlier
authors.forename: F
authors.initials: F
authors.lastname: Prat
authors.forename: S
authors.initials: S
authors.lastname: Chaussade
mesh_terms: D003110:Colonic Neoplasms / Q000175:diagnosis; D003113:Colonoscopy / Q000379:methods / Q000592:standards; D005602:France; D006801:Humans; D008485:Medical Audit / Q000379:methods; D017410:Practice Guidelines as Topic; D011446:Prospective Studies; D011785:Quality Assurance, Health Care / Q000379:methods* / Q000592:standards