i-gel® from Intersurgical: clinical evidence listing

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

Comparison of insertion of the modified i-gel airway for oral surgery with the LMA Flexible: a manikin study.

Sanuki T, Sugioka S, Komasawa N, Ueki R, Kaminoh Y, Kotani J. Anesth Prog. 2014 Winter;61(4):145-9

Manikin study, including novice practitioners, using a modified i-gel device and LMA Flexible. Mean insertion time was significantly shorter for the modified i-gel.

Link to abstract

The quality of cardiopulmonary resuscitation using supraglottic airways and intraosseous devices: a simulation trial

Reiter DA, Strother CG, Weingart SD. Resuscitation 2013; 84(1): 93-7

Emergency Medicine residents split into teams took part in two simulated ventricular fibrillation cardiac arrests using a high fidelity simulator, testing whether use of a laryngeal mask airway improved resuscitation results. Time to airway placement, duration and success rate of airway placement and percent hands off time were among results measured. Authors conclude that use of a laryngeal mask and an IO device led to ‘significantly faster establishment of an airway’


Insertion of six different supraglottic airway devices whilst wearing chemical, biological, radiation, nuclear-personal protective equipment: a manikin study

Castle N, Pillay Y, Spencer N. Anaesthesia 2011; 66(11): 983-8

Six different supraglottic airway devices, including i-gel®, were tested by 58 paramedics for speed and ease of insertion in a manikin, whilst wearing either a standard uniform or chemical, biological, radiation, nuclear-person protective equipment (CBRN-PPE). During the latter test, i-gel® was the fastest of the six to insert with a mean insertion time of 19 seconds. Overall, the wearing of CBRN-PPE has a detrimental effect on insertion time of supraglottic airways.

Link to abstract.




Airway management in simulated restricted access to a patient--can manikin-based studies provide relevant data?

Nakstad AR, Sandberg M.Scand J Trauma Resusc Emerg Med. 2011 13; 19: 36

Twenty anaesthesiologists from the Air Ambulance Department at Oslo University Hospital used i-gel®, laryngeal tube LTSII™ and Macintosh laryngoscopes in two scenarios with either unrestricted (scenario A) or restricted (scenario B) access to the cranial end of the manikin. Technique selected, success rates and time to completion were primary outcomes. Results showed that in scenario B, all physicians secured the airway on first attempt, compared to 80% for ETI, whilst also completing in a quicker time. Authors conclude that ‘ETI was time consuming and had a low success rate’.

Abstract text 

Evaluation of four airway training manikins as patient simulators for the insertion of eight types of supraglottic airway devices

Jackson KM, Cook TM. Anaesthesia. 2007 Apr;62(4):388-93

The airway arm of this trial compared devices including i-gel, Cobra, SLIPA and Laryngeal Tube Suction II. Each device was inserted twice into each manikin by ten anaesthetists, with each insertion scored and ranked. No one manikin outranked the others for all devices. i-gel insertion was 'significantly the easiest'.

Link to abstract