Abstract
The impact of simulator fidelity on colonoscopic skill acquisition. A randomized trial between high and low fidelity colonoscopic simulators
Journal of the American College of Surgeons, Vol.213(3), pp.S127-S128
2011
DOI: 10.1016/j.jamcollsurg.2011.06.305
Abstract
Colonoscopic simulators offer the opportunity for skill acquisition in the pre-clinical setting. Available simulators vary widely with respect to fidelity and technological sophistication. We hypothesize that novice learners can acquire basic colonoscopic skills using simulators however fidelity of the simulator does not make a difference.
Novice third year medical students were randomly assigned to practice on a low- fidelity (lo-fid group) or high-fidelity (hi-fid group) colonoscopy model. The low-fidelity model is described in module 16 of the ACS/APDS Surgical Skills Curriculum for Residents, Phase 1: Basic/Core Skills and Tasks. The high-fidelity model was the AccuTouch colonoscopy simulator, Immerson Medical (AccuTouch-CS). Both groups had 16 students and were given standard instruction by an expert. Both groups were pre and post tested on level 1 of the AccuTouch-CS. The hi-fid group practiced on level 2 and 4 of the AccuTouch-CS while the low-fid group practiced on the low-fidelity model for 2 sessions of 1 hour each. The computer based evaluation parameters available on the AccuTouch-CS were used to compare performances.
Both groups had similar demographics. There were no significant differences in the base line performances of either group. Each group demonstrated significant improvement for insertion time and percentage of mucosa visualized. The low-fid group also improved significantly for total time. However, there were no significant differences between groups on post testing on any of the measured parameters (
Table).
Computer-based Colonoscopy Performance Parameters
Hi-fid group Mean Score
Lo-fid group Mean Score
Parameter
Pre
Post
Pre
Post
Total Time
1051
1037
1112
⁎
835
Insertion Time
426
⁎
331
481
⁎
255
Withdrawal Time
609
716
633
574
Maximum Scope Depth
119
120
119
121
Percentage Visualized
86
⁎
96
88
⁎
97
Total Path Length
418
482
540
522
Percentage Redout
8.2
9.6
11.7
9.2
Total Air Insufflated
2246
1669
2678
2114
Percentage Air Left
95
91
97
95
⁎
Statistically significant difference between pre and post performance.
Colonoscopic skill training on a low-fidelity model appears to be as effective as high-fidelity model training for basic endoscopic skill acquisition for novice learners.
Details
- Title: Subtitle
- The impact of simulator fidelity on colonoscopic skill acquisition. A randomized trial between high and low fidelity colonoscopic simulators
- Creators
- Sajida Ahad - Southern Illinois University School of MedicineVriti Advani - Southern Illinois University School of MedicineMargaret L. Boehler - Southern Illinois University School of MedicineCathy Schwind - Southern Illinois University School of MedicineImran Hassan - Southern Illinois University School of Medicine
- Resource Type
- Abstract
- Publication Details
- Journal of the American College of Surgeons, Vol.213(3), pp.S127-S128
- Publisher
- Elsevier Inc
- DOI
- 10.1016/j.jamcollsurg.2011.06.305
- ISSN
- 1072-7515
- eISSN
- 1879-1190
- Language
- English
- Date published
- 2011
- Academic Unit
- Surgery
- Record Identifier
- 9984322896302771
Metrics
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