Abstract
Background: Continuous ultrasound-guided peripheral nerve block is a widely practiced technique that can be a challenge for young anesthesiologists. We developed a new simulation model for learning perineural catheter placement. This study aims to test the validity of the model and investigate the learning process of residents on this model. Methods: The simulation model was constructed with partial animal tissue and physical materials. Ultrasound-guided simulation of perineural catheter placement was then performed. Twenty-eight anesthesiologists representing novices, intermediates and experts were required to perform 30 trials within one single day. Practice trials were video-recorded to extract data of task time and performance errors. Construct validity were assessed. Results: Practicing on the simulation model, experts were able to achieve superior task performance, i.e., shorter task time (P < 0.001) and fewer performance errors (P < 0.001), than intermediates and novices. Learning curve recorded from young residents suggested that they were not able to reach the proficiency level as experts within one training day. Conclusions: This hybrid simulation model was capable of training the skills required for continuous ultrasound-guided peripheral nerve block. Future studies under this model need to concern extending the duration of the training phase for residents.
Combined epidural anesthesia and ultrasound guided peripheral nerve block for wound revision in a patient with peripartum cardiomyopathy -A case report-
