i-gel® from Intersurgical: clinical evidence listing

Sharma B, Sehgal R, Sahai C, Sood J. Journal Of Anaesthesia And Clinical Pharmacology 2010; 26 (4): 451-457

In this study, the performance of the LMA ProSeal® and i-gel® was compared during laparoscopic surgery. 60 patients were randomised into two groups and had the supraglottic airway inserted by an experienced anaesthesiologist (defined as >500 and >50 insertions for ProSealTM and i-gel® respectively.

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Helmy AM, Atef HM, El-Taher EM, Henidak AM. Saudi J Anaesth 2010; 4(3): 131-136

This study compared the cLMA and i-gel® in 80 healthy adult patients. The patients were randomly assigned to two groups for insertion of one of the devices during surgery. Haemodynamic data, oxygen saturation and end-tidal CO2 were similar in both groups. Leak pressure was significantly higher with the i-gel®, which also had a shorter insertion time. Postoperative complications were generally comparable, however there was a higher incidence of nausea and vomiting in the cLMA group due to gastric insufflation.

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Gasteiger L, Brimacombe J, Perkhofer D, Kaufmann M, Keller C. Anaesthesia 2010; 65(9): 913-916

This study compared the use of the LMA Proseal® and the i-gel® in 152 adult female patients. A duodenal tube guided insertion technique was used for both devices. There was no significant difference between insertion success rates and insertion times of the two devices. Leak pressure was 7cm H2O higher with the ProSeal®, providing a better seal for ventilation.

Link to abstract

Michalek, P, Donaldson, W. Resuscitation 2010; 81(7): 911

This article is a response to Xue et al (2010). The authors generally agree that there are limitations to this study. However, the tracheal tubes used were noticeably longer than the body of the i-gel®. Although the results of manikin studies cannot be extrapolated to clinical practice, they are an important part of the testing needed before a product is used on patients.

Link to abstract.

Zaballos M, Bastida E, del Castillo T, de Villoria JG, Jiménez C. Anaesthesia 2010; 65(6): 569-572

In this study, the artefacts created during MRI by six supraglottic airways, the Classic LMA®, the ProSeal LMA®, the LMA Unique®, the LMA Supreme®, the Ambu® disposable laryngeal mask and the i-gel® were investigated. There were no artefacts with the i-gel® or Ambu® devices.

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