Bougies as an aid for endotracheal intubation with the Airway Scope: bench and manikin comparison studies.

Background: When encountering a difficult airway with an Airway Scope (AWS) a bougie can be inserted into the endotracheal tube in the AWS channel. The angulated tip of the bougie can be guided toward the glottis by rotating it. We tested the ease of rotating bougies (Venn reusable, Boussignac, Portex single-use, and Frova) in an endotracheal tube when placed in the AWS channel.

[Airway Obstruction Caused by Heat and Moisture Exchange Filter Used during General Anesthesia: A Case Report and an In Vitro Study].

Background: A previously healthy 54-year-old woman underwent a resection of the acoustic tumor. Following induction of general anesthesia and tracheal intubation, volume-controlled ventilation was started and the patient was placed in the left park bench position. The heat and moisture exchange filter (HMEF) was placed within the ventilatory circuit and positioned below the patient's head to avoid unintentional extubation.

[Efficacy of bougie in difficult intubation with the Airway Scope caused by inability to lift the epiglottis directly].

Background: There are some disadvantages of the Airway Scope (AWS), and the most crucial one is that the AWS has only one fixed-size AWS blade. When the blade is too short to reach beneath the epiglottis and to lift it directly, an endotracheal tube hits the epiglottis and cannot be advanced into the glottic aperture even when it is visible. A bougie may solve this difficulty because its angulated tip can be controlled in a desired direction.

Approach combining the airway scope and the bougie for minimizing movement of the cervical spine during endotracheal intubation.

Background: The Airway Scope (AWS, AWS-S100; Hoya-Pentax, Tokyo, Japan), a recently introduced video laryngoscope, has been reported to reduce movement of the cervical spine during intubation attempts in comparison with conventional laryngoscopes. Use of the bougie as an aid for the AWS may cause further reduction. The authors compared cervical spine movement during intubation with the AWS with and without a bougie.

Combination of Airway Scope and bougie for a full-stomach patient with difficult intubation caused by unanticipated anatomical factors and cricoid pressure.

The Airway Scope, one of the newest video-laryngoscopes, provides an excellent view of the larynx on a built-in monitor screen. Difficulty in introducing an endotracheal tube into the laryngeal aperture may occur, even though the aperture is visible. The bougie may solve this difficulty because its angulated tip can be controlled in a desired direction.

Malposition of the epiglottis associated with fiberoptic intubation.

A case in which the epiglottis was tucked into the laryngeal inlet by advancement of an endotracheal tube (ETT) during fiberoptic intubation, is presented. In this case, pulling the fibroscope, which was advanced under the displaced epiglottis, was effective for restoration.

Oral styletted intubation under video control in a patient with a large mobile glottic tumour and a difficult airway.

Purpose: With fibreoptic intubation, advancement of the endotracheal tube (ETT) through the glottis is blind. Thus, in patients with a laryngeal tumour, there is a potential for damage to the tumour. Previously, we proposed the use of a fibreoptic bronchoscope (FOB)-video camera system to permit visualization of tube passage.