i-gel® from Intersurgical: clinical evidence listing

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

Supraglottic airways and pulmonary aspiration: the role of the drain tube

Drolet P. Can J Anesth 2009; 56(10): 715-720

This article discusses the gastric channel or drain tube as a safety feature provided in supraglottic airways. Although pulmonary aspiration of gastric contents is a relatively rare event, it can be made rarer with the use of devices that include a gastric channel, particularly if they are inserted using a bougie. i-gel® is discussed.

Link to abstract.


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.



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.

Pre-hospital resuscitation using the i-gel®

Thomas M, Benger J. Resuscitation 2009; 80(12): 1437

This correspondence article describes 12 attempts to ventilate patients in cardiac arrest using the i-gel®. The device could usually be inserted on the first attempt; however, on seven out of 12 occasions ventilation was then found to be inadequate. The i-gel®s were correctly positioned, but there were large leaks. The authors state that the reason for this is unclear, but that the device may be harder to position correctly when patients are not in the most appropriate position for insertion. An alternative explanation is that higher pressure is needed to ventilate the lungs after cardiac arrest, in which case other supraglottic airways should have the same problem.

Link to abstract.