i-gel® from Intersurgical: clinical evidence listing

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

A proposal for a new scoring system to predict difficult ventilation through a supraglottic airway

Saito T, Chew ST, Liu WL, Thinn KK, Asai T, Ti LK. Br J Anaesth. 2016 Sep; 117 Suppl 1: i83-i86

By using previously reported derivation data, a score was validated in 5532 patients ranging between 0 and 7 points. Under this format, the authors conclude the scoring system to be easy to perform and reliable.

Link to abstract.

Supraglottic Airway Devices and Effect on Voice-Comparison of LMA Proseal and i-gel: Double-Blind Randomized Clinical Trial

Vaidya S, Kundra P, Gopalakrishnan S, Parida P, Yuvaraj K, Mohan PM. J Voice. 2016 Sep;30(5):631-7

90 adult patients were randomly assigned to LMA Proseal and i-gel groups, with voice evaluated using perceptive and acousitc analysis. In both groups voice results deteriorated comparably.

Link to abstract

Layperson mouth-to-mask ventilation using a modified I-gel laryngeal mask after brief onsite instruction: a manikin-based feasibility trial

Schälte G, Bomhard LT, Rossaint R, Coburn M, Stoppe C, Zoremba N, Rieg A. BMJ Open 2016;6(5):e10770

100 participants were analysed using a labelled i-gel with an integrated mouthpiece and asked to follow an instruction chart. 79% were able to ventilate the manikin effectively, with 90% using the correct turn and direction.

Link to abstract

Sniffing Position and i-gel Rotation Approach for i-gel Insertion under General Anesthesia

Takahashi Y, Murashima K, Kayashima K. Masui 2016 Apr;65(4):330-5

Study on 50 adults to test the efficacy of i-gel insertion assistance techniques - sniffing the morning air position and rotation. Average insertion time was 24 seconds at first attempt. Authors conclude both techniques 'can be used for insertion'.

Link to abstract