i-gel® from Intersurgical: clinical evidence listing

Dingley J, Stephenson J, Allender V, Dawson S, Williams D. Anaesthesia. 2018 Jul;73(7):856-862

To investigate the hypothesis that i-gel cuff softening occurs during warming to body temperature, this study used a probe to measure cuff hardness and resilience on devices mounted in a monitored water bath to provide 105,864 data points at 11 temperatures. Authors conclude that hardness and resilience reduced with warming, but at levels that may not be encountered during clinical use.

Link to abstract.

Lopez NT, McCoy SK, Carroll C, Jones E, Miller JA. Mil Med. 2018 Jun 19 [Epub ahead of print]

Prospective crossover study on cadavers to measure airway exchange on three pre-placed supraglottic airways: King LT, i-gel and LMA Unique. Participants, recruited from emergency medical personnel in a training lab, rated the difficulty level of placement of each airway device. Successful exchange equalled proper placement of the ETT in the trachea. Authors conclude the i-gel superior for blind airway exchange with an ETT in this set up.

Link to abstract.

Jain RA, Parikh DA, Malde AD, Balasubramanium B. Indian J Anaesth. 2018 Apr;62(4):269-279

This survey was sent to over 16,000 members of the Indian Society of Anaesthesiologists and given to delegates at the Asian Society of Paediatric Anaesthesiologists conference 2017. Percentage, mean and standard deviation were calculated. Results showed i-gel was the most commonly used device (60%) and 75% of respondents had access to second-generation supraglottic airways.

Link to abstract.