British journal of anaesthesia
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We hypothesised that Calabadion 1, an acyclic cucurbit[n]uril molecular container, reverses fentanyl-induced respiratory depression and dysfunction of the CNS. ⋯ Calabadion 1 selectively and dose dependently reversed the respiratory system and CNS side-effects of fentanyl.
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Subcortical structures, including the basal ganglia, have been proposed to be crucial for arousal, consciousness, and behavioural responsiveness. How the basal ganglia contribute to the loss and recovery of consciousness during anaesthesia has, however, not yet been well characterised. ⋯ Apart from similar activity changes in both STN and cortex associated with anaesthesia-induced unresponsiveness, we observed specific neuronal activity changes in the STN in response to the anaesthesia and tracheal intubation. We also show that the power-law exponent in the power spectra in the STN was modulated by tracheal intubation in anaesthesia. Our results support the hypothesis that subcortical nuclei may play an important role in the loss and return of responsiveness.
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During induction of general anaesthesia, patients frequently experience apnoea, which can lead to dangerous hypoxaemia. An obstructed upper airway can impede attempts to provide ventilation. Although unrelieved apnoea is rare, it continues to cause deaths. Clinical investigation of management strategies for such scenarios is effectively impossible because of ethical and practical considerations. ⋯ Supraglottic oxygen supplementation before relieving upper airway obstruction improves the effectiveness of simulated airway rescue. Management strategies should be implemented to assure a substantially increased pharyngeal Fo2 during difficult airway management.
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Entrustable professional activities (EPAs) are commonly developed by senior clinicians and education experts. However, if postgraduate training is conceptualised as an educational alliance, the perspective of trainees should be included. This raises the question as to whether the views of trainees and supervisors on entrustability of specific EPAs differ, which we aimed to explore. ⋯ The views of first-year trainees, advanced trainees, and supervisors showed high agreement. Differing views of young trainees disappeared after the first year. This finding provides a fruitful basis to involve trainees in negotiations of autonomy.