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.

Randomised comparison of the effectiveness of the laryngeal mask airway supreme, i-gel and current practice in the initial airway management of out of hospital cardiac arrest (REVIVE-Airways): a feasibility study

Benger J, Coates D, Davies S, Greenwood R, Nolan J, Rhys M, Thomas M, Voss S. Br J Anaesth. 2016;116(2):262-8

A cluster randomised trial of paramedics within one ambulance service in England over a 12-month period, split into groups using either the i-gel or LMA Supreme or usual practice for all patients with non-traumatic adult OHCA. Primary outcome was study feasibility, including recruitment and protocol adherence. Secondary outcomes included survival to hospital discharge and to 90 days. 184 of 535 paramedics consented, with 615 patients recruited. The LMA Supreme arm was suspended following 'adverse incidents'. No differences were reported in secondary outcomes.

Link to abstract

Time to abandon the 'vintage' laryngeal mask airway and adopt second-generation supraglottic airway devices as first choice

Cook TM, Kelly FE. Br J Anaesth. 2015 Oct;115(4):497-9

Editorial posing the question of whether the cLMA still has a place in 'modern airway practice or whether it is time to move on'. The authors highlight that with the choice of second-generation devices available, including i-gel, perhaps it is time to abandon the first-generation predecessors.

Link to abstract

Third generation supraglottic airway devices: an undefined concept and misused term. Time for an updated classification of supraglottic airway devices

Cook TM. Br J Anaesth. 2015 Oct;115(4):633-4

Letter to the editor recommending that the term 'third generation' used when describing supraglottic airway devices is abandoned due to the confusion over the design features that determine the device's advancement. The author makes further suggestion as to how devices should be classified.

Link to abstract

Failed tracheal intubation in obstetric anaesthesia: 2 yr national case–control study in the UK

Quinn AC, Milne D, Columb M, Gorton H and Knight M. Br J Anaesth. 2013 Jan;110(1):74-80

The purpose of this UK-wide study was to further evaluate the predetermined rate that one in 250 obstetric patients suffer failed intubation whilst undergoing general anaesthesia. Due to the lack of national figures, the study used the UK Obstetric Surveillance System (UKOSS) of data collection in centres across the UK to record incidence, risk factors and any reports of failed intubations. All contacted centres responded, equalling 57 completed reports, giving a unit-based estimation of one case in every 224 patients. Univariate analyses also recorded in detail in this report.

Link to abstract.