http://medest118.com/2014/06/21/vortex-approach-il-manuale-i-video-tutorial/
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..."The Vortex approach described in this text utilises a straightforward cognitive aid, rather than progression through a linear algorithm, to encourage a structured approach to the difficult airway. It was conceived in 2008 by Nicholas Chrimes, an anaesthetist and developed in consultation with experienced medical & nursing staff from anaesthetic, intensive care and emergency medicine backgrounds. Since then, it has been taught to medical & nursing staff working in anaesthetics, emergency medicine & intensive care as well as to paramedical staff. It is an established component of regular training sessions in difficult airway management run at Monash Simulation, the Australian & New Zealand College of Anaesthetists and Adult Retrieval Victoria and now forms an integral part of the curriculum for teaching airway management to all critical care staff across Southern Health, the largest healthcare network in Melbourne, Australia. The feedback from recipients of this teaching has been overwhelmingly positive. They report that the Vortex both heightens their awareness of priorities during difficult airway management as well as improving their ability to work through & implement the appropriate interventions in real time, in both simulated and clinical settings..."
https://www.smashwords.com/books/download/277513/1/latest/0/0/the-vortex-approach-management-of-the-unanticipated-difficult-airway.pdf