Emergency research must occur to improve the outcome from life-threatening illness or injury. The majority of people are aware of the importance of this research and that the normal rules of consent are not applicable. Alternative methods of recruitment need to be investigated.
the epiglottis when used during the second laryngoscopy than the D-Blade [5.5 (4.04, 9.4) vs 6.7 (4.2, 9.1) s, P¼0.85]. After the second laryngoscopy, the average time for intubation was shorter for the C-MAC when compared with the D-Blade [9 (5.85, 13.95) vs 7.3 (5.35, 13.45) s, P¼0.41]. A crosscomparison was also performed to examine the CL scores and visualization times for all C-MAC procedures in comparison with D-Blade procedures, regardless of the order (Table 1).Overall, the study had negative results. We did not find statistically significant differences in time to optimal view of the glottis, time of intubation, or number of attempts. Several studies have confirmed that the use of the C-MAC system is safe and provides comparable results, in comparison with direct laryngoscopy, for laryngoscopy and intubation. 6 7 Although morbid obesity does not constitute a difficult airway per se, it can constitute a serious event in a patient population (mild to severe desaturation). Taking into consideration the limitations of a pilot study, we found that the D-Blade provided a good view of the glottis, which resulted in fast and successful tracheal intubation during routine induction of anaesthesia in severely obese patients, possibly anticipating advanced usage in more serious and difficult situations.
Declaration of interestD.C. has been granted funds from Storz (Germany) to continue research on the C-MAC system. C.A.H. is a paid consultant for Storz (Germany).
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