1. Use of a ProSeal™ laryngeal mask airway and a Ravussin cricothyroidotomy needle in the management of laryngeal and subglottic stenosis causing upper airway obstruction 
T.M. Cook, M. Asif, R. Sim, J. Waldron 
British Journal of Anaesthesia 
Volume 95, Issue 4, Pages (October 2005)
DOI: /bja/aei201
Copyright © 2005 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
CT scan of neck at the level of the thyroid cartilage. Destruction of the left thyroid cartilage can be seen (on the right of the image). The degree of stenosis was greater at different levels.
British Journal of Anaesthesia  , DOI: ( /bja/aei201)
Copyright © 2005 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
The Ravussin cannula in place in the anterior neck, through which jet ventilation is taking place. Rigid laryngoscopy is being performed by the surgeons.
British Journal of Anaesthesia  , DOI: ( /bja/aei201)
Copyright © 2005 British Journal of Anaesthesia Terms and Conditions