Oropharyngeal airways (sizes 00, 0, 1.0, 2.0, 3.0, 4.0) Oropharyngeal airways are also known as Guedel airways (Fig 2) and prevent the tongue from dropping backward and obstructing the airway in an ...

A Guedel oro-pharyngeal airway was tried; however, thick mucous secretions continued to be a significant problem and it was difficult to secure. Therefore a soft 4.0 mm endotracheal tube was used ...