Comparison of the Glidescope®, the Pentax AWS®, and the Truview EVO2® with the Macintosh laryngoscope in experienced anaesthetists: a manikin study M.A.

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Presentation transcript:

Comparison of the Glidescope®, the Pentax AWS®, and the Truview EVO2® with the Macintosh laryngoscope in experienced anaesthetists: a manikin study M.A. Malik, C. O’Donoghue, J. Carney, C.H. Maharaj, B.H. Harte, J.G. Laffey British Journal of Anaesthesia Volume 102, Issue 1, Pages 128-134 (January 2009) DOI: 10.1093/bja/aen342 Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 1 (a) Photograph of the Truview EVO2® laryngoscope with camera attachment which clips onto the eyepiece. The attached camera is a Premier 5.2 mega pixel digital camera made specifically for the Truview EVO2®, with a 5 cm×4 cm LCD screen. (b) Photograph of the Glidescope® with single-use blade placed over fibreoptic system. The Glidescope® is attached to its standard 8.5 cm×15 cm LCD monitor. (c) Photograph of the Pentax AWS® laryngoscope with single-use blade clipped onto the camera system. British Journal of Anaesthesia 2009 102, 128-134DOI: (10.1093/bja/aen342) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 2 Box plot representing the duration required to successfully intubate the trachea with each device in each scenario tested. The boxes identify the median and inter-quartile range, with the bars representing the 10th and 90th centile. In both the tongue oedema and combined scenario, the median and third quartile values for the Macintosh laryngoscope are the same. The position of the median value for the Macintosh in each scenario is indicated by the grey line. *Significantly different compared with all other groups. †Significantly (P<0.05) different compared with both the Macintosh and the AWS® groups. Normal, SimMan® normal airway scenario; Cervical immob, SimMan® cervical spine immobilization scenario; Tongue oedema, SimMan® tongue oedema scenario; Tongue oedema+Cervical immob, SimMan® combined tongue oedema and cervical spine immobilization scenario. British Journal of Anaesthesia 2009 102, 128-134DOI: (10.1093/bja/aen342) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

Fig 3 Box plot representing the user rated degree of difficulty of use of each instrument in each scenario tested. The boxes identify the median and inter-quartile range, with the bars representing the 10th and 90th centile. In both the tongue oedema and combined scenarios, the median and third quartile values for the Macintosh laryngoscope are the same. The position of the median value for the Macintosh in each scenario is indicated by the grey line. *Significantly different compared with all other groups. ‡Significantly (P<0.05) different compared to both the Truview® and the Glidescope® groups. Normal, SimMan® normal airway scenario; Cervical immob, SimMan® cervical spine immobilization scenario; Tongue oedema, SimMan® tongue oedema scenario; Tongue oedema+Cervical immob, SimMan® combined tongue oedema and cervical spine immobilization scenario. British Journal of Anaesthesia 2009 102, 128-134DOI: (10.1093/bja/aen342) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions