Abstract:Abstract: Objective To compare and evaluate efficiency of head-flexible endoscope (HFS) and direct laryngoscope (DLS) in setting up artificial airway in rabbit. Methods Forty New Zealand White rabbits were chosen and randomly divided into two groups. Artificial airway was respectively set up by DLS auxiliary tracheal intubation and HFS auxiliary tracheal intubation. The success rate of intubation, time of intubation, airway damage and change of mean arterial pressure were compared between the two groups. Results The intubation success rate of the HFS group was higher than that of the DLS; the time of intubation in the HFS group was shorter than that in the DLS group; the incidence of airway damage in the HFS group was lower than that in the DLS group. Hemodynamic changes of the HFS group in the process of intubation were fewer than those of the DLS group. Conclusions The HFS obviously optimizes the method of endotracheal intubation in rabbit.