European journal of anaesthesiology
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Assessment of Mallampati class is an integral part of preoperative airway evaluation. Increasing Mallampati class is known to be associated with greater difficulty with intubation, but some cases of airway difficulty in Mallampati 'class zero' patients have been reported. ⋯ A Mallampati class zero per se is not associated with difficult airway unless other airway characteristics contribute to the difficulty. Even though the epiglottis may be large and overhanging, it rarely causes airway difficulty in Mallampati class zero airway.
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Randomized Controlled Trial Comparative Study
Comparison of Bullard and Airtraq laryngoscopes with conventional laryngoscopy in a manikin study of simulated difficult intubation.
When airway management is difficult, various measures can be taken to facilitate tracheal intubation. The Bullard and Airtraq laryngoscopes were developed for this purpose. We hypothesised that the Bullard and Airtraq laryngoscopes would perform better than a conventional laryngoscope in the management of a simulated difficult airway. We also hypothesised that the indirect laryngoscopes would perform comparably. ⋯ In a moderately difficult airway scenario, all laryngoscopes performed equally well. However, in a more difficult airway scenario, the Bullard and Airtraq laryngoscopes performed better than the conventional laryngoscope, with the Bullard device performing better than the Airtraq. This may be in part related to differing prior experiences of operators with the respective airway devices.
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Preoperative cognitive impairment (PreCI), amnesic mild cognitive impairment (aMCI; a risk factor for Alzheimer's disease) and multiple domain MCI with amnesia (mdMCI+a) identify preoperative cognitive abnormalities in patients scheduled for coronary artery bypass graft surgery (CABG). ⋯ PreCI, aMCI and mdMCI+a identified preoperative cognitive abnormalities in different groups of patients scheduled for CABG surgery. The findings emphasise that identification of patients with preoperative cognitive dysfunction is methodology-dependent. The optimal approach to subsequently identify patients who may be at greatest risk of progressive cognitive deterioration after CABG surgery remains to be determined.