Deliberate practice on virtual reality laparoscopic simulator improves quality of surgical skills
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Deliberate practice on virtual reality laparoscopic simulator improves quality of surgical skills Patrice Crochet MD, Rajesh Aggarwal PhD, Sukhpreet Dubb, Paul Ziprin MD, Niroshini Rajaretnam, Teodor Grantcharov PhD, K Anders Ericsson PhD, Ara Darzi MD, FACS Imperial College London, London, England INTRODUCTION: Virtual reality (VR) simulation gives new train- ing opportunities. This study evaluates whether the deliberate prac- tice (DP) can be successfully applied to a VR laparoscopic cholecys- tectomy to improve the quality of surgical skills. METHODS: 26 inexperienced surgeons underwent a training pro- gram for cholecystectomy on a laparoscopic VR simulator. Trainees were randomly allocated to 2 specific protocols of 10 sessions: the control group (n 13) performed 2 cholecystectomies separated by 30 minutes, occupational activities at each session. The DP group (n 13) was assigned 30 minutes of DP activities in between 2 cholecystectomies. Then every participant performed 2 cholecystec- tomies on a cadaveric porcine model. Quantitative parameters were recorded from the simulator. Qualitative assessment utilized a vali- dated global rating scale. RESULTS: 22 subjects completed the training; learning curves were significant for time taken and number of movements in both groups. The DP group was slower from the second session (1,373 secs vs 872 secs; P0.022) and used more movements from the fourth (942 vs 701; P0.033). Global rating scores improved in both groups show- ing significant learning curves. The DP group revealed better OSATS scores than control from the fifth (16 vs 13; P0.015) until the tenth session (18 vs 14; P0.007). The DP group had higher global rating scores on the porcine model (25.5 vs 19.5; P0.002). CONCLUSIONS: The VR training improved dexterity in both groups, though the DP group had greater surgical quality. DP also demonstrated a better transfer of surgical skills on real tissues. S112 Surgical Forum Abstracts J Am Coll Surg
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Transcript of Deliberate practice on virtual reality laparoscopic simulator improves quality of surgical skills
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S112 Surgical Forum Abstracts J Am Coll Surg
eliberate practice on virtual reality laparoscopicimulator improves quality of surgical skillsatrice Crochet MD, Rajesh Aggarwal PhD, Sukhpreet Dubb,aul Ziprin MD, Niroshini Rajaretnam, Teodor Grantcharov PhD,Anders Ericsson PhD, Ara Darzi MD, FACS
mperial College London, London, England
NTRODUCTION: Virtual reality (VR) simulation gives new train-ng opportunities. This study evaluates whether the deliberate prac-ice (DP) can be successfully applied to a VR laparoscopic cholecys-ectomy to improve the quality of surgical skills.
ETHODS: 26 inexperienced surgeons underwent a training pro-ram for cholecystectomy on a laparoscopic VR simulator. Traineesere randomly allocated to 2 specific protocols of 10 sessions: the
ontrol group (n � 13) performed 2 cholecystectomies separated by0 minutes, occupational activities at each session. The DP group
n � 13) was assigned 30 minutes of DP activities in between 2 dholecystectomies. Then every participant performed 2 cholecystec-omies on a cadaveric porcine model. Quantitative parameters wereecorded from the simulator. Qualitative assessment utilized a vali-ated global rating scale.
ESULTS: 22 subjects completed the training; learning curves wereignificant for time taken and number of movements in both groups.he DP group was slower from the second session (1,373 secs vs 872
ecs; P�0.022) and used more movements from the fourth (942 vs01; P�0.033). Global rating scores improved in both groups show-ng significant learning curves. The DP group revealed better OSATScores than control from the fifth (16 vs 13; P�0.015) until the tenthession (18 vs 14; P�0.007). The DP group had higher global ratingcores on the porcine model (25.5 vs 19.5; P�0.002).
ONCLUSIONS: The VR training improved dexterity in bothroups, though the DP group had greater surgical quality. DP also
emonstrated a better transfer of surgical skills on real tissues.
