title: Development and validation of a novel method for assessing competency in polypectomy: direct observation of polypectomy skills.
abstract: BACKGROUND
  Despite its ubiquitous use over the past 4 decades, there is no structured, formal method with which to assess polypectomy.
  
  
  OBJECTIVE
  To develop and validate a new method with which to assess competency in polypectomy.
  
  
  METHODS
  Polypectomy underwent task deconstruction, and a structured checklist and global assessment scale were developed (direct observation of polypectomy skills [DOPyS]). Sixty bowel cancer screening polypectomy videos were randomly chosen for analysis and were scored independently by 7 expert assessors by using DOPyS. Each parameter and the global rating were scored from 1 to 4 (scores ≥3 = competency). The scores were analyzed by using generalizability theory (G theory).
  
  
  METHODS
  Multicenter.
  
  
  RESULTS
  Fifty-nine of the 60 videos were assessable and scored. The majority of the assessors agreed across the pass/fail divide for the global assessment scale in 58 of 59 (98%) polyps. For G-theory analysis, 47 of the 60 videos were analyzed. G-theory analysis suggested that DOPyS is a reliable assessment tool, provided that it is used by 2 assessors to score 5 polypectomy videos all performed by 1 endoscopist. DOPyS scores obtained in this format would reflect the endoscopist's competence.
  
  
  CONCLUSIONS
  Small sample and polyp size.
  
  
  CONCLUSIONS
  This study is the first attempt to develop and validate a tool designed specifically for the assessment of technical skills in performing polypectomy. G-theory analysis suggests that DOPyS could reliably reflect an endoscopist's competence in performing polypectomy provided a requisite number of assessors and cases were used.
authors.affiliation: Wolfson Unit for Endoscopy, St. Mark's Hospital and Imperial College London HA1 3UJ., United Kingdom.
authors.forename: Sachin
authors.initials: S
authors.lastname: Gupta
authors.forename: John
authors.initials: J
authors.lastname: Anderson
authors.forename: Pradeep
authors.initials: P
authors.lastname: Bhandari
authors.forename: Brian
authors.initials: B
authors.lastname: McKaig
authors.forename: Pullan
authors.initials: P
authors.lastname: Rupert
authors.forename: Bjorn
authors.initials: B
authors.lastname: Rembacken
authors.forename: Stuart
authors.initials: S
authors.lastname: Riley
authors.forename: Matt
authors.initials: M
authors.lastname: Rutter
authors.forename: Roland
authors.initials: R
authors.lastname: Valori
authors.forename: Margaret
authors.initials: M
authors.lastname: Vance
authors.forename: Cees P M
authors.initials: CP
authors.lastname: van der Vleuten
authors.forename: Brian P
authors.initials: BP
authors.lastname: Saunders
authors.forename: Siwan
authors.initials: S
authors.lastname: Thomas-Gibson
mesh_terms: D002983:Clinical Competence / Q000592:standards*; D003111:Colonic Polyps / Q000473:pathology / Q000601:surgery*; D003113:Colonoscopy / Q000592:standards*; D006801:Humans; D015588:Observer Variation; D017063:Outcome Assessment, Health Care / Q000379:methods*; D011785:Quality Assurance, Health Care; D015203:Reproducibility of Results; D014741:Video Recording