Int J Comput Assist Radiol Surg - Learning curves of basic laparoscopic psychomotor skills in SINERGIA VR simulator.

Tópicos

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Resumo

RPOSE: Surgical simulators are currently essential within any laparoscopic training program because they provide a low-stakes, reproducible and reliable environment to acquire basic skills. The purpose of this study is to determine the training learning curve based on different metrics corresponding to five tasks included in SINERGIA laparoscopic virtual reality simulator.METHODS: Thirty medical students without surgical experience participated in the study. Five tasks of SINERGIA were included: Coordination, Navigation, Navigation and touch, Accurate grasping and Coordinated pulling. Each participant was trained in SINERGIA. This training consisted of eight sessions (R1-R8) of the five mentioned tasks and was carried out in two consecutive days with four sessions per day. A statistical analysis was made, and the results of R1, R4 and R8 were pair-wise compared with Wilcoxon signed-rank test. Significance is considered at P value <0.005.RESULTS: In total, 84.38% of the metrics provided by SINERGIA and included in this study show significant differences when comparing R1 and R8. Metrics are mostly improved in the first session of training (75.00% when R1 and R4 are compared vs. 37.50% when R4 and R8 are compared). In tasks Coordination and Navigation and touch, all metrics are improved. On the other hand, Navigation just improves 60% of the analyzed metrics. Most learning curves show an improvement with better results in the fulfillment of the different tasks.CONCLUSIONS: Learning curves of metrics that assess the basic psychomotor laparoscopic skills acquired in SINERGIA virtual reality simulator show a faster learning rate during the first part of the training. Nevertheless, eight repetitions of the tasks are not enough to acquire all psychomotor skills that can be trained in SINERGIA. Therefore, and based on these results together with previous works, SINERGIA could be used as training tool with a properly designed training program.

Resumo Limpo

rpose surgic simul current essenti within laparoscop train program provid lowstak reproduc reliabl environ acquir basic skill purpos studi determin train learn curv base differ metric correspond five task includ sinergia laparoscop virtual realiti simulatormethod thirti medic student without surgic experi particip studi five task sinergia includ coordin navig navig touch accur grasp coordin pull particip train sinergia train consist eight session rr five mention task carri two consecut day four session per day statist analysi made result r r r pairwis compar wilcoxon signedrank test signific consid p valu result total metric provid sinergia includ studi show signific differ compar r r metric most improv first session train r r compar vs r r compar task coordin navig touch metric improv hand navig just improv analyz metric learn curv show improv better result fulfil differ tasksconclus learn curv metric assess basic psychomotor laparoscop skill acquir sinergia virtual realiti simul show faster learn rate first part train nevertheless eight repetit task enough acquir psychomotor skill can train sinergia therefor base result togeth previous work sinergia use train tool proper design train program

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