Airway Adjunct to an Unanticipated Difficult Airway

Yet another modification of Guedel′s airway

“…[1] McGinley and McAdoo[3] devised a modification of Guedel’s airway with deficiency in anterior support. However, at times, the tip of the FFL gets lodged in the pyriform fossa due to the deficiency in anterior support.…”

One airway many modifications

“…There are attempts to make nasal as well as oral airways, which act as adjunct to flexible fibreoptic laryngoscope. [1–3] Apart from specially designed airways such as Ovassapian and Berman′s, attempts with modification in Guedel's airway have also been made with the creation of anterior and posterior slits. [23]…”

A modified Guedel airway for continuous oxygenation and suctioning during fibreoptic bronchoscopy

“…In addition, oxygenation of the patient may be compromised whenever bronchoscopy is performed in apnoeic or oversedated patients, or whenever fibreoptic intubation takes longer than anticipated. Many oral airways have been designed to facilitate fibreoptic bronchoscopy; these include the Berman II intubating airway [1], the Ovassapian fibreoptic intubating airway [2], the Williams airway intubator [3], the Patil fibreoptic airway [4] and two recently proposed modifications of the Guedel airway [5, 6]. While these airways facilitate the passage of the bronchoscope, none of them solves the problem of excess pharyngeal secretions and blood, which impair vision and make the technique difficult, if not impossible.…”