• Wolfgang A Wetsch, Andreas Schneider, Robert Schier, Oliver Spelten, Martin Hellmich, and Jochen Hinkelbein.
• aDepartment of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne bInstitute of Medical Statistics, Informatics and Epidemiology, University of Cologne, Cologne, Germany.
• Eur J Emerg Med. 2015 Oct 1; 22 (5): 374-6.

AbstractThe success of tracheal intubation (TI) is unacceptably low in unconventional positions. Supraglottic airway devices (SAD) have become an important alternative. An airway manikin was placed in a car, simulating an entrapped motor vehicle accident victim. The rescuer only had access through the driver's door. Participants were (n = 25) anaesthesiologists with experience in prehospital emergency medicine. They attempted to secure the airway by TI or an SAD (Ambu AuraOnce, iGel, laryngeal tube) in a random sequence. Performance was compared using the Wilcoxon signed-rank test. P values less than 0.05 were considered statistically significant. Fastest effective ventilation was achieved with iGel (11.5 ± 6.9 s, P < 0.001), followed by a laryngeal mask (15.1 ± 5.6 s, P < 0.001) and a laryngeal tube (17.6 ± 5.3 s, P < 0.001); TI was the slowest (42.8 ± 23.9 s, comparator). iGel (P < 0.001) and laryngeal mask (P = 0.01) also significantly outperformed the laryngeal tube. First ventilation was achieved significantly faster with SADs compared with TI. Success rates were also higher when using SADs.

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