i-gel® from Intersurgical: clinical evidence listing

A comprehensive list of all known published clinical evidence on the device

Challenge to pediatric anatomical variation: Can we draw the ideal line on the pediatric I-gel?

Abukawa Y, Hiroki K, Iwakiri H, Fukuda T, Ozaki M. J Anesth. 2016;30(2):199-204

130 patients aged 7 months to 13 years monitored under general anaesthesia, with size selection based on patient's body weight. Average insertion length grew longer with increasing height and weight. Authors conclude a line could be drawn on sizes 1.5 and 2 only.

Link to abstract

Pillow height for i-gel® insertion: a randomized clinical trial

Fujiwara A, Komasawa N, Minami T. J Anesth. 2016;30(3):542

Randomised controlled trial of 70 patients divided into two groups by height: low (4cm), and high (12cm). Performed by novice doctors, insertion efficacy difference between groups did not differ.

Link to abstract

Evaluation of the efficacy of six supraglottic devices for airway management in dark conditions: a crossover randomized simulation trial

Ohchi F, Komasawa N, Imagawa K, Okamoto K, Minami T. J Anesth. 2015 Dec;29(6):887-92

15 novice doctors and 17 with >2 years experience were asked to insert each airway device into a manikin in random order. This was done in a windowless room with all the lights on and again with the lights switched off. Insertion time, insertion success, and participant's own perception of ease of use were all recorded. Ventilation success was lower in both groups when using the ProSeal and cLMA in the dark. Insertion time for these devices was longer in the dark, an effect that was also seen in both groups. Both ProSeal and cLMA were rated as more difficult to use in the dark compared with light conditions and with other devices. These results are thought to be due to the difference in design between these airways and the others used in the study, which are stiffer and anatomically shaped.

Link to abstract

Laryngoscopy facilitates successful i-gel insertion by novice doctors: a prospective randomized controlled trial

Miyazaki Y, Komasawa N, Matsunami S, Kusaka Y, Minami T. J Anesth. 2015;29(5):654-9

Trial on 84 adults assigned to either laryngoscopy or control groups, with number of attempts to successful insertion and difficulty of insertion the primary outcomes measured. Results suggest that laryngoscopy facilitates i-gel insertion by novice doctors.

Link to abstract