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Randomized controlled trial of the Pentax AWS®, Glidescope®, and Macintosh laryngoscopes in predicted difficult intubation  M.A. Malik, R. Subramaniam,

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Presentation on theme: "Randomized controlled trial of the Pentax AWS®, Glidescope®, and Macintosh laryngoscopes in predicted difficult intubation  M.A. Malik, R. Subramaniam,"— Presentation transcript:

1 Randomized controlled trial of the Pentax AWS®, Glidescope®, and Macintosh laryngoscopes in predicted difficult intubation  M.A. Malik, R. Subramaniam, C.H. Maharaj, B.H. Harte, J.G. Laffey  British Journal of Anaesthesia  Volume 103, Issue 5, Pages (November 2009) DOI: /bja/aep266 Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

2 Fig 1 (a) Photograph of the Pentax AWS® laryngoscope with a single-use blade clipped onto camera system. (b) Photograph of Glidescope® Cobalt with a single-use blade clipped onto fibreoptic system. British Journal of Anaesthesia  , DOI: ( /bja/aep266) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

3 Fig 2 Consort diagram for study demonstrating the number of patients assessed for inclusion into the study, number enrolled in the study, the numbers followed up, and numbers of patients analysed. British Journal of Anaesthesia  , DOI: ( /bja/aep266) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

4 Fig 3 (a) Comparison of IDS score distributions with each laryngoscope. The number of patients is shown above each bar. The distribution of IDS scores in each group is significantly different (P<0.001, Kruskal–Wallis anova on ranks). (b) Cormack and Lehane grade view during the first tracheal intubation attempt with each laryngoscope. The number of patients is shown above each bar. The distribution of Cormack and Lehane grades in each group is significantly different (P<0.001, Kruskal–Wallis anova on ranks). British Journal of Anaesthesia  , DOI: ( /bja/aep266) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

5 Fig 4 (a) Graph representing the changes in heart rate after tracheal intubation with each device. The data are given as mean values. The error bars indicate 1 sd. (b) Graph representing the changes in mean arterial pressure after tracheal intubation with each device. The data are given as mean values. The error bars indicate 1 sd. *Significant change over time within each group. 30 s Pre-Ind, 30 s before induction of anaesthesia; −30, 30 s before tracheal intubation, +60, 60 s post-tracheal intubation; +120, 120 s post-tracheal intubation; +180, 180 s post-tracheal intubation; +300, 300 s post-tracheal intubation. British Journal of Anaesthesia  , DOI: ( /bja/aep266) Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

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