Masui. The Japanese journal of anesthesiology
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Randomized Controlled Trial
[Efficacy of bougie in difficult intubation with the Airway Scope caused by inability to lift the epiglottis directly].
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. Therefore, we examined the efficacy of the bougie on this problem. ⋯ Use of the bougie was useful for difficult intubation with the AWS caused by inability to lift the epiglottis directly.
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Angelman syndrome is a hereditary disease described by Angelman. The clinical features of Angelman syndrome are characterized by mental retardation, puppet-like ataxia, easily excitable personality, seizures, paroxysmal laughter, strabismus and macroglossia. A 4-year-old girl with Angelman syndrome underwent strabismus repair under general anesthesia. ⋯ Tracheal intubation was performed after administration of rocuronium. During and after anesthesia, no adverse events regarding circulatory and respiratory systems occurred. However, this case demonstrates that it is necessary to pay attention to airway troubles including the difficulty of tracheal intubation, management of body temperature and chronotropic action or respiratory depression by anesthetic agents.
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The Airtraq optical laryngoscope allows visualization of the glottis through a non-line-of sight view. The aim of the present study was to evaluate the suitability of this device for the tracheal intubation of surgical patients. ⋯ The Airtraq optical laryngoscope consistently permitted a better intubation environment. With its potential advantages, the Airtraq optical laryngoscope could be an effective aid to airway management in surgical patients.
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Craniotomy sometimes causes pseudoankylosis of the mandible, i.e., limited mouth opening, leading to a difficult airway. We describe a case of difficult airway due to pseudoankylosis of the mandible after craniotomy, in which orotracheal intubation was successfully performed with an AirWay Scope (AWS). A 60-year-old woman was scheduled for clipping of an unruptured cerebral aneurysm. ⋯ After careful induction with fentanyl and propofol, the blade was inserted smoothly. Her glottic opening was easily visualized, and her trachea was intubated without any difficulty or any distinct hemodynamic disturbance. Careful assessment of the interincisor distance is essential in patients who have previously undergone craniotomy.
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In tracheal intubation assisted by tube-guiding devices passing through the tube, such as fiberoptic scopes, bougies, tracheal tube exchange catheters, and light wands, passage of the tube-guiding device, by itself, is often easy. But advancing a tracheal tube with a conventional distal tip over these tube-guiding devices is frequently difficult or impossible, because its rigid, side-beveled tip frequently catches on anatomical features of the airway. ⋯ The gapless, midline travel of the Parker tube leads to a greater incidence of first-attempt intubation success with tube-guiding devices, because there is less risk of tube tip hang-ups on the arytenoids and the vocal cords. Clinically, use of the Parker tube is helpful for oral and nasal intubations, especially in patients with difficult airways.