1. Increases in bispectral index lead to interventions that prevent possible intraoperative awareness 
D.M. Mathews, S.S. Rahman, P.M. Cirullo, R.J. Malik 
British Journal of Anaesthesia 
Volume 95, Issue 2, Pages (August 2005)
DOI: /bja/aei162
Copyright © 2005 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
The BIS tracing (darker line, scale to left), and the facial EMG tracing (lighter line, scale to right) for the case. At arrow A the incorrectly positioned stopcock was discovered and a propofol bolus given. At arrows B and C propofol boluses were given. At arrow D the crack in the distal stopcock was discovered and desflurane started.
British Journal of Anaesthesia  , DOI: ( /bja/aei162)
Copyright © 2005 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
The tubing used for the case. The arrow highlights the crack in the three-way stopcock.
British Journal of Anaesthesia  , DOI: ( /bja/aei162)
Copyright © 2005 British Journal of Anaesthesia Terms and Conditions