Learning Curve of Video-laryngoscope (VL) for First Attempt Successful Endotracheal Intubation During Cardiopulmonary Resuscitation (CPR)

Direct layngoscope (DL) is a basic tool for endotracheal intubation(ETI) during cardiopulmonary resuscitation(CPR). ETI during CPR has higher risks of failure or delayed success with frequent attempts, misplacement of the tube, and prolonged interruptions of chest compressions. The main problems associated with ETI relate to the inherently technical difficulty in using DL. VL have various advantages of fast learning curve and overall success comparing with the DL in non-arrest patients, but there was no known data of learnig curve of successful ETI during CPR.

This study tried to estimate the the appropriate numbers of VL usage for successful ETI at first attempt during CPR. So the investigators analyze the success rate, speed, trial number, incidence of complications, and hands-off time of ETI using VL which in real clinical setting. In addition, this study analyze the residency training term, total number of of VL usage using VL at that time.