Extubation and emergence

Emergence and extubation are times of increased risk during anaesthesia. More complications occur then than at induction. The majority of problems are airway related due to airway obstruction, hypoxia, aspiration, airway trauma or post-obstructive pulmonary oedema. Other problems include a delayed recovery of consciousness, cardiovascular instability and delirium. Prompt identification and treatment of the underlying cause is essential to prevent serious morbidity and mortality. The Difficult Airway Society published extubation guidelines in 2012. These guidelines provide a step-wise approach to extubation in a four-stage approach encompassing planning, preparation, performing and then post-extubation care. The planning phase is aimed at identifying the patients in whom extubation is a higher risk procedure, based on the presence or absence of risk factors and clinical assessment. Preparation includes optimization of the patient and the environment prior to extubation. The performing stage is a guide to maximize the success of the extubation process, while the post-extubation care is aimed at ensuring that safe and appropriate care is ongoing.