i-gel® from Intersurgical: clinical evidence listing

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

Spatial relationship of I-gel and Ambu® AuraOnce on pediatric airway: a randomized comparison based on three dimensional magnetic resonance imaging

Aqil M, Delvi B, Abujamea A, Alzahrani T, Alzahem A, Mansoor S, Aaljazaeri A. Minerva Anestesiol. 2016 Jun 17

Sixty paediatric patients were split between the two groups, with scans of head and neck performed after confirmation of device placement. Both devices 'significantly' reduced the area of glottis opening. i-gel produced greater dilation of upper oesophogeal sphincter. Authors conclude more studies needed to test these results to 'reduce morbidity on pediatric airway'.

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

Comparison of five 2nd-generation supraglottic airway devices for airway management performed by novice military operators.

Henlin T, Sotak M, Kovaricek P, Tyll T, Balcarek L, Michalek P. Biomed Res Int. 2015;2015:201898

Prospective, randomised, single-blinded study comparing five supraglottic airway devices (ProSeal LMA, Supreme LMA, SLIPA, Laryngeal Tube Suction-D and i-gel) in low light conditions on 505 patients after induction of general anaesthesia. Insertion time was shortest in Supreme LMA and i-gel groups.

Link to abstract

A clinical evaluation of the pediatric i-gel™ for airway management during MRI examination

Corso RM, Battelli D, Maitan S, Zampone S, Agnoletti V. J Anaesthesiol Clin Pharmacol. 2014 Apr;30(2):288-90

Database review of 45 patient records meeting authors' set criteria, which included i-gel sizes 1-2.5. i-gel use in MRI produces no artefacts and the authors conclude the device is a useful device in this scenario, offering quick insertion time and low rate of complications.

Link to abstract

Use of i-gel in magnetic resonance imaging

Kaur K, Bhardwaj M, Kumar P, Lal J, Johar S, Hooda S. Acta Anaesthesiol Taiwan. 2014 Mar;52(1):41-2

Image quality and trauma evidence were measured in 10 adult patients undergoing MRI. Authors conclude I-gel causes the least ferromagnetic interference compared with other devices and improves the image quality.

Link to abstract