Background
Learning how to insert a central venous catheter (CVC) is essential for anesthesia residents and the use of simulation is recommended [The social learning theory proposed by Bandura and adapted to simulation states that vicarious learning occurs when observing others, one gets an idea of how behaviors are produced and how to reproduce them [To increase the positive effects of simulation training when the learner is in the role of observer, some authors have proposed the use of an observer tool (OT) allowing observers to analyze the progress of the task performed by their colleagues [The objective of this procedural simulation study was to assess whether the use of an OT improves learning experience of CVC placement in a simulation environment.