Transfer of cysto-urethroscopy skills from a virtual-reality simulator to the operating room: a randomized controlled trial.
ABSTRACT To assess whether real-time cysto-urethroscopy (CUS) performance improves by simulator-based training (criterion or predictive validity), addressing the research question 'Does practical skills training on the URO Mentor (UM, Simbionix USA Corp., Cleveland, OH, USA) virtual-reality simulator improve the performance of flexible CUS in patients'.
Participants (71 interns from Catharina Hospital Eindhoven, CHE, and 29 from University Medical Centre Groningen, UMCG) were randomized to carry out CUS in a patient after training on the UM (UM-trained, 50) or without training on UM (control, 50). The assessment of real-time performance consisted of scoring on a Global Rating Scale (GRS) by supervisors unaware of training status. Data were analysed using stepwise multiple linear regression. The effect size (ES) indication for correlations was used to interpret the magnitude of a standard regression coefficient (beta); an ES of 0.10, 0.30 and 0.50 were considered small, moderate and large, respectively. The study was approved by the Medical Review Ethics Committees of the participating hospitals.
Overall, the group that received training performed significantly better than the controls (P < or = 0.003, beta range 0.30-0.47). There was no effect of training for participants with a specific preference for a surgical speciality in two of five GRS scores. Participants from CHE obtained higher GRS 3 scores than those from UMCG. Significantly more UMCG trainees indicated having had stress than those from CHE (P < 0.001).
The results showed that interns who had trained on UM outperformed controls for a CUS procedure in a patient. Training for CUS on the UM is to be recommended for learning to respect tissue, procedural knowledge, flow of procedure and forward planning. Use of the UM to train interns with a specific interest in a surgical speciality in handling instruments, and time and motion, seems to be of limited value.
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ABSTRACT: Most studies of simulator-based surgical skills training have focused on the acquisition of psychomotor skills, but surgical procedures are complex tasks requiring both psychomotor and cognitive skills. As skills training is modelled on expert performance consisting partly of unconscious automatic processes that experts are not always able to explicate, simulator developers should collaborate with educational experts and physicians in developing efficient and effective training programmes. This article presents an approach to designing simulator-based skill training comprising cognitive task analysis integrated with instructional design according to the four-component/instructional design model. This theory-driven approach is illustrated by a description of how it was used in the development of simulator-based training for the nephrostomy procedure.Medical Teacher 01/2012; 34(10):e698-707. · 1.82 Impact Factor
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ABSTRACT: Recognition of the many limitations of traditional apprenticeship training is driving new approaches to learning medical procedural skills. Among simulation technologies and methods available today, computer-based systems are topical and bring the benefits of automated, repeatable, and reliable performance assessments. Human factors research is central to simulator model development that is relevant to real-world imaging-guided interventional tasks and to the credentialing programs in which it would be used.CardioVascular and Interventional Radiology 09/2011; 35(3):445-53. · 2.09 Impact Factor