1. Tracheal intubation in patients with cervical spine immobilization: a comparison of the Airwayscope®, LMA CTrach®, and the Macintosh laryngoscopes 
M.A. Malik, R. Subramaniam, S. Churasia, C.H. Maharaj, B.H. Harte, J.G. Laffey 
British Journal of Anaesthesia 
Volume 102, Issue 5, Pages (May 2009)
DOI: /bja/aep056
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 a camera system. (b) Photograph of the LMA CTrach®. The tracheal tube is passed through the LMA while glottic inlet is viewed on the screen.
British Journal of Anaesthesia  , DOI: ( /bja/aep056)
Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
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).
British Journal of Anaesthesia  , DOI: ( /bja/aep056)
Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

4. Fig 3
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/aep056)
Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

5. Fig 4
Graph representing the changes in heart rate after tracheal intubation with each device. The data are given as mean (sd). *Significant change in heart rate 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/aep056)
Copyright © 2009 British Journal of Anaesthesia Terms and Conditions

6. Fig 5
Graph representing the changes in mean arterial pressure after tracheal intubation with each device. The data are given as mean (sd). *Significant change in heart rate 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/aep056)
Copyright © 2009 British Journal of Anaesthesia Terms and Conditions