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  • Title: A new virtual-reality training module for laparoscopic surgical skills and equipment handling: can multitasking be trained? A randomized controlled trial.
    Author: Bongers PJ, Diederick van Hove P, Stassen LP, Dankelman J, Schreuder HW.
    Journal: J Surg Educ; 2015; 72(2):184-91. PubMed ID: 25439179.
    Abstract:
    OBJECTIVE: During laparoscopic surgery distractions often occur and multitasking between surgery and other tasks, such as technical equipment handling, is a necessary competence. In psychological research, reduction of adverse effects of distraction is demonstrated when specifically multitasking is trained. The aim of this study was to examine whether multitasking and more specifically task-switching can be trained in a virtual-reality (VR) laparoscopic skills simulator. DESIGN: After randomization, the control group trained separately with an insufflator simulation module and a laparoscopic skills exercise module on a VR simulator. In the intervention group, insufflator module and VR skills exercises were combined to develop a new integrated training in which multitasking was a required competence. At random moments, problems with the insufflator appeared and forced the trainee to multitask. During several repetitions of a different multitask VR skills exercise as posttest, performance parameters (laparoscopy time, insufflator time, and errors) were measured and compared between both the groups as well with a pretest exercise to establish the learning effect. A face-validity questionnaire was filled afterward. SETTING: University Medical Centre Utrecht, The Netherlands. PARTICIPANTS: Medical and PhD students (n = 42) from University Medical Centre Utrecht, without previous experience in laparoscopic simulation, were randomly assigned to either intervention (n = 21) or control group (n = 21). RESULTS: All participants performed better in the posttest exercises without distraction of the insufflator compared with the exercises in which multitasking was necessary to solve the insufflator problems. After training, the intervention group was significantly quicker in solving the insufflator problems (mean = 1.60Log(s) vs 1.70Log(s), p = 0.02). No significant differences between both the groups were seen in laparoscopy time and errors. CONCLUSION: Multitasking has negative effects on the laparoscopic performance. This study suggests an additional learning effect of training multitasking in VR laparoscopy simulation, because the trainees are able to handle a secondary task (solving insufflator problems) quicker. These results may aid the development of laparoscopy VR training programs in approximating real-life laparoscopic surgery.
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