i-gel® from Intersurgical: clinical evidence listing

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

Design and implementation of the AIRWAYS-2 trial

Taylor J, Black S, Brett S, Kirby K, Nolan JP, Reeves BC, Robinson M, Rogers CA, Scott LJ, South A, Stokes EA, Thomas M, Voss S, Wordsworth S, Benger JR. Resuscitation. 2016 Sep 30. pii: S0300-9572(16)30476-2

Patient enrollment began in June 2015 for this study comparing the use by paramedics of the i-gel against endotracheal intubation in OHCA in the UK. The primary outcome is the modified Rankin Scale score at hospital discharge. The trial will enrol 9070 patients over two years.

Link to abstract.

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.

A comparison of QTc intervals after laryngoscopic intubation and i-gel insertion during propofol-sevoflurane anaesthesia

Byon HJ, Song J, Shinn HK, Song K, Lee C, Lim H. Minerva Anestesiol. 2016 Sep;82(9):950-6

Patients were randomly assigned to either the i-gel or intubation group and induced using propofol or sevoflurane. Peak QTc interval was lowever in the i-gel group. Authors conclude the i-gel 'may be advantageous' to patients at risk of QTc prolongation.

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

Laryngeal mask airway ProSeal provides higher oropharyngeal leak pressure than i-gel in adult patients under general anesthesia: a meta-analysis

Maitra S, Baidya DK, Arora MK, Bhattacharjee S, Khanna P. J Clin Anesth. 2016 Sep;33:298-305

Meta-analysis of 10 RCTs to assess results when comparing the oropharyngeal leak pressure of each device. LMA ProSeal returned more favourable results, although i-gel deemed easier to insert. ProSeal also reported higher blood staining.

Link to abstract.