Comparison of Efficiency Between I-gel-Assisted Blind Intubation and I-gel-assisted Bronchoscopic Intubation During Cardiopulmonary Resuscitation: Randomized Simulation Study

The investigators will compare conventional intubation using Macintosh laryngoscope, blind endotracheal intubation using i-gel for conduit and bronchoscopic intubation using Ambu-aScope and i-gel. All situation assumed as cardiac arrest. i.e, someone give chest compressions continuously without interruption.

Moreover the investigators will compare the type of endotracheal tube. Reinforced tube has more soft tube tip, so the investigators think it is more acceptable for intubation using i-gel as conduit.