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Comparison of the i-gel with the AuraGain laryngeal mask airways in patients with a simulated cervical immobilization: a randomized controlled trial

Hur, M  | Choi, S | Row, HS | Kim, TK
Minerva anestesiologica, 86(7). : 727-735, 2020
Journal Title
Minerva anestesiologica
BACKGROUND: The use of second generation supraglottic airway devices is recommended for airway rescue in failed tracheal intubation. This study was performed to compare the clinical performance of the i-gel with that of the AuraGain in patients with simulated cervical immobilization. METHODS: We conducted a prospective, randomized controlled trial in 104 patients undergoing general anesthesia from June to September 2018 at the Seoul National University Hospital. Patients were randomly allocated to receive either the i-gel or the AuraGain device. A difficult airway was simulated using a cervical collar limiting the mouth opening and neck movement. The primary outcome was the initial oropharyngeal leak pressure. RESULTS: The rate of successful insertion at the first attempt was 92.3% for the i-gel and 86% for the AuraGain. There were no significant differences in the initial and 5-min oropharyngeal leak pressures between the i-gel and the AuraGain (21+/-4 vs. 22+/-5 cmH2O, P=0.229; and 22+/-5 vs. 23+/-5 cmH2O, P=0.308, respectively). The time to successful device insertion was shorter (20 [16-23] vs. 25 [20-41] s, P<0.001) and device insertion was easier (P<0.001) in the i-gel group than in the AuraGain group. The blood staining of the device was more frequently observed in the AuraGain (3 [5.8%] vs. 12 [23.5%] patients, P=0.003). CONCLUSIONS: The i-gel and the AuraGain showed comparable oropharyngeal leak pressures and success rates in the first attempt in patients with simulated cervical immobilization. However, the i-gel was easier to insert and required less time for insertion than the AuraGain.


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Journal Papers > School of Medicine / Graduate School of Medicine > Anesthesiology & Pain Medicine
Ajou Authors
허, 민
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