Abstract
Conventional laryngoscopes are not ideal, as it may often be difficult to see the glottis, even with extension of the patient's head. The Pentax-AWS, a videolaryngoscope, allows one to see the glottis, with the patient's head in the neutral position, and guides a tube into the trachea. The success rate of tracheal intubation using the Pentax-AWS has been shown to be high in patients in whom intubation using the conventional laryngoscope has failed. In the future, the videolaryngoscopes should be the mainstream for tracheal intubation, as they have clear advantages over the conventional laryngoscopes. Nevertheless, our ability to use the conventional laryngoscopes should be maintained, as videolaryngoscopes are not perfect.
