• Paediatric anaesthesia · Dec 2012

    Randomized Controlled Trial Comparative Study

    A randomized trial comparing the Ambu ® Aura-i ™ with the air-Q ™ intubating laryngeal airway as conduits for tracheal intubation in children.

    • Narasimhan Jagannathan, Lisa E Sohn, Amod Sawardekar, Jason Gordon, Ravi D Shah, Isabella I Mukherji, Andrew G Roth, and Santhanam Suresh.
    • Department of Pediatric Anesthesia, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University's Feinberg School of Medicine, Chicago, IL 60611, USA. simjag2000@yahoo.com
    • Paediatr Anaesth. 2012 Dec 1;22(12):1197-204.

    ObjectivesTo assess the clinical performance of the Ambu Aura-i (Aura-i) in children.AimTo compare the Aura-i with the air-Q intubating laryngeal airway (air-Q) for the purposes of fiberoptic-guided tracheal intubation.BackgroundThe Aura-i is a new supraglottic airway designed for tracheal intubation.Materials/MethodsOne hundred twenty children, ages 1 month to 6 years, were randomized to receive either the Aura-i or air-Q, and divided into three equal subgroups (Group 1, 2, 3) based on weight. The time for successful tracheal intubation was primarily assessed. The ease, time, and number of attempts for successful device insertion, leak pressures, fiberoptic grade of laryngeal view, number of attempts time for removal of the device after tracheal intubation, and complications were secondarily assessed.ResultsDevice placement, tracheal intubation, and removal after tracheal intubation were successful in all patients. There were no differences in the time to successful tracheal intubation through the Aura-i (32.9 ± 13.3 s), and the air-Q (33.9 ± 13 s; P = 0.68), or fiberoptic grade of view between devices. There was not a statistically significant correlation between the time to intubation and the fiberoptic grade of laryngeal view in any of the groups. There were no statistically significant differences in the overall leak pressures, air-Q (18.3 ± 6.1 cm H(2) O) vs Aura-i (16 ± 5.1 cm H(2) O; P = 0.05). In Group 1 (5-10 kg), leak pressures were higher with the air-Q (23.4 ± 7.2 cm H(2) O) than the Aura-i (16.1 ± 5.2 cm H(2) O; P = 0.001). There were no statistically significant differences in the time for removal between the two devices (P = 0.11). However, with the size 1.5 Aura-i, the pilot balloon of the tracheal tube was removed in order to facilitate the removal of the device after tracheal intubation.ConclusionsBoth devices served as effective conduits for fiberoptic-guided tracheal intubation. The limitation of the narrower proximal airway tube of the size 1.5 Aura-i should be considered if cuffed tracheal tubes are to be utilized.© 2012 Blackwell Publishing Ltd.

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