Preparation for the difficult airway

References 1. Nørskov AK, Wetterslev J, Rosenstock CV, et al. Prediction of difficult mask ventilation using a systematic assessment of risk factors vs. existing practice–a cluster randomised clinical trial in 94,006 patients. Anaesthesia 2017; 72: 296–308. 2. Nørskov AK, Wetterslev J, Rosenstock CV, et al. Effects of using the simplified airway risk index vs. usual airway assessment on unanticipated difficult tracheal intubation–a cluster randomized trial with 64,273 participants. British Journal of Anaesthesia 2016; 116: 680–9. 3. Pandit JJ, Heidegger T. Putting the ‘point’ back into the ritual: a binary approach to difficult airway prediction. Anaesthesia 2017; 72: 283–8. 4. Nørskov AK, Rosenstock CV, Lundstrøm LH. Lack of national consensus in preoperative airway assessment. Danish Medical Journal 2016; 63: pii a5278.