i-gel® from Intersurgical: clinical evidence listing

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

A comparison of postoperative throat and neck complaints after the use of the i-gel® and the La Premiere® disposable laryngeal mask: A double-blinded, randomized, controlled trial

Keijzer Ch, Buitelaar DR, Efthymiou KM, Sramek M, Ten Cate J, Ronday M, Stoppa T, Huitink JM, Schutte PF. Anesth Analg. 2009; 109(4): 1092-1095

This study from the department of Anesthesiology and Intensive Care at the Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital and the VU University Medical Center in Amsterdam compared the rate of postoperative sore throat and neck complaints with i-gel® to a well known brand of laryngeal mask. Patients were interviewed postoperatively at 1hr, 24hrs and 48 hrs. The authors found significantly lower levels of sore throat with i-gel®, as well as lower levels of dysphagia.

Link to abstract.



SupremeTM laryngeal mask airway vs. the i-gel® supraglottic airway in patients under general anaesthesia and mechanical ventilation with no neuromuscular block: a randomised clinical trial

Fernández Díez A, Prez Villafane A, Bermejo González JC, Marcos Vidal JM. Rev Esp Anestesiol Reanim 2009; 56: 474-478
In this study, 85 patients were randomised into two groups for ventilation via LMA Supreme® or i-gel® supraglottic airways. Ease of insertion, seal pressure, ventilatory parameters and insertion of a gastric tube were all recorded. Both devices were easy to insert, with the SupremeTM and i-gel® being inserted on the first attempt in 95.2 and 86% of cases respectively. Performance was generally comparable.

Abstract text


Biswas S, Mandal S, Mitra T, De Ray S, Chanda R, Sur D.

64 patients were randomly assigned to either the i-gel or ETT group, with venous blood samples taken after induction and 20 minutes following. Authors conclude i-gel is 'a suitable, effective and safe' alternative to ETT in this scenario.

Link to abstract

Evaluation of the new supraglottic airway devices Ambu® Aura OnceTM and Intersurgical i-gel®. Positioning, sealing, patient comfort and airway morbidity

Heuer JF, Stiller M, Rathgeber J, Eich C, Züchner K, Bauer M, Timmermann A. Anaesthesist 2009; 58(8): 813-820

In this study, the i-gel® was compared to the cLMA, ProSeal and Ambu Aura OnceTM supraglottic airways. 40 patients were assigned to each of the four groups for insertion of one of the airways during surgery. Ease of insertion and insertion time were comparable for all devices. The ProSeal and Aura OnceTM airways had significantly better placement and seal pressures. Airway morbidity did not occur in any of the groups. The cLMA was significantly more likely to cause postoperative sore throat.

Link to abstract


i-gel® supraglottic airway for rescue airway management and as a conduit for intubation in a patient with acute respiratory failure

Campbell J, Michalek P, Deighan M. Resuscitation 2009; 80(8): 963

This case report details the case of a 54-year-old man with acute respiratory failure, who had a grade four view at laryngoscopy. He was difficult to bag-mask ventilate and a laryngeal mask was inserted as an airway rescue technique. As ventilation was not possible with this device, it was removed and a size four i-gel® inserted. This allowed good ventilation. A fibrescope was passed down the airway channel and a 7.0mm endotracheal tube passed over the fibrescope and through the i-gel®. The i-gel® was then removed, leaving the airway secure.

Link to abstract.