CC BY-NC-ND 4.0 · Endosc Int Open 2018; 06(06): E758-E765
DOI: 10.1055/s-0044-101754
Original article
Owner and Copyright © Georg Thieme Verlag KG 2018

Face and construct validity of a novel mechanical ERCP simulator

Sophia E. van der Wiel
Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands
,
Arjun D. Koch
Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands
,
Marco J. Bruno
Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center Rotterdam, The Netherlands
› Author Affiliations
Further Information

Publication History

submitted 29 August 2017

accepted after revision 27 November 2017

Publication Date:
05 June 2018 (online)

Abstract

Background and study aims Simulation-based training has become an important pillar in competence-based medicine. However, limited data are available on use of simulators in training for endoscopic retrograde cholangiopancreatography (ERCP). We aimed to determine the face and construct validity of the Boškoski-Costamagna mechanical ERCP Trainer, and to assess its didactic value, as judged by experts.

Methods Participants were divided into four groups based on ERCP lifetime experience: novices, intermediate, experienced, and experts. Participants performed several standardized assignments on the simulator. Outcome parameters included times to complete the procedure, ability to cannulate both ducts, number of attempts to cannulate the common bile duct and pancreatic duct, number of inadvertent pancreatic duct cannulations, successful stent placement, and successful stone extraction. All experts filled out a questionnaire on the simulator’s realism and didactic value.

Results Novices (n = 11) completed the total procedure in 21:09 (min:sec), intermediates (n = 5) in 10:58, experienced (n = 8) in 06:42 and experts (n = 22) in 06:05. Experts were significantly faster than novices (Kruskal-Wallis test P < 0.000). Experts rated the realism of the simulator 7.12 on a 10-point Likert scale. The simulator’s potential as a tool for training novices was rated 3.91 on a four-point Likert scale, and there was a high agreement among experts to include the simulator in the training of novice endoscopists (3.86 on a four-point Likert scale).

Conclusions The novel Boškoski-Costamagna ERCP simulator demonstrates good face and construct validity. ERCP experts highly agree on the didactic value and added value of this simulator in the training curriculum for novice endoscopists.