i-gel® from Intersurgical: clinical evidence listing

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

Comparison of i-gel as a conduit for intubation between under fibreoptic guidance and blind endotracheal intubation during cardiopulmonary resuscitation: a randomized simulation study

Choi HY, Kim W, Jang YS, Kang GH, Kim JG, Kim H. Emerg Med Int. 2019 Oct 31;2019:8913093

This prospective randomized crossover manikin study investigated the intubation performance of I-gel blind intubation (IGI) in comparison to I-gel bronchoscopic intubation (IBRI) and intubation using Macintosh Laryngoscope (MCL). 23 emergency physicians carried out intubations with two different types of ET tubes while performing chest compressions. Assessed outcomes included intubation time (primary) cumulative success rate for each intubation time was significantly shorter as compared to the IBRI and MCL using both ET tubes. On the other hand, the performance of polyvinyl chloride and wire reinforced silicon tubes were comparable for each intubation technique. Moreover, the IGI approach reached 100% intubation success rate in a significantly shorter amount of time as compared to the other techniques. Therefore, the IGI technique is a safe and effective approach when carrying out intubations in emergency scenarios that can be used by experienced intubators when administering chest compressions.

Link to abstract.

Comparative study of fiber-optic guided tracheal intubation through intubating laryngeal mask airway LMA FastrachTM and i-gel in adult paralyzed patients

Sood S, Saxena A, Thakur A, Chahar S. Saudi J Anaesth. 2019 Oct-Dec; 13(4): 290–294.

This prospective randomised study aimed to compare the performance of two supraglottic airway devices (SADs) the i-gel and LMA Fastrach when performing fiberoptic-guided intubation in adult paralysed patients. 60 patients were randomly assigned to either i-gel or LMA Fastrach. Several parameters were assessed, which included ease and time taken for fiberoptic-guided intubation (primary outcome), time taken for successful SAD placement, ease of insertion, ease and time of removal, as well as haemodynamic parameters and postoperative complication (secondary outcomes). Findings demonstrated that the Fastrach had a faster tracheal intubation and higher airway sealing pressure. On the other hand, the ETT was easier to insert when using the i-gel as compared to the Fastrach. Haemodynamic parameters were comparable between both devices. In addition, post removal complications were observed in either devices. Therefore, both devices are comparable in terms of performance and efficacy facilitating fiberoptic-guided intubation in adult paralysed patients.

Link to abstract.

Comparative evaluation of I-gel vs. endotracheal intubation for adequacy of ventilation in pediatric patients undergoing laparoscopic surgeries

Kohli M, Wadhawan S, Bhadoria P, Ratan SK. J Anaesthesiol Clin Pharmacol. 2019 Jan-Mar;35(1):30-35

This study aimed to determine the efficacy of the i-gel as compared to the ETT in terms of adequacy of ventilation in 80 children (2-8 years of age) undergoing paediatric laparoscopic surgeries. Several parameters were evaluated including peak airway pressure, end-tidal CO2, minute ventilation, SpO2, as well as desufflation of the peritoneal cavity. These variables were recorded after securing the airway, after carboperitoneum (CP) and after desufflation of the peritoneal cavity. Results showed a significant increase in the partial pressure of mean expired CO2 (PeCo2), peak airway pressure, as well as minute ventilation in both groups after creation of CP. On the other hand, no difference was observed in heart rate or mean arterial pressure. Moreover, the i-gel showed a smaller increase in peak airway pressure and fewer post-operative complications. Thus, both devices were comparable in terms of adequacy of ventilation, but the i-gel was able to provide a safe alternative to the ETT.

Link to abstract.

Comparison of blind intubation with different supraglottic airway devices by inexperienced physicians in several airway scenarios: a manikin study

Bielski A, Smereka J, Madziala M, Golik D, Szarpak L. Eur J Pediatr. 2019 Jun;178(6):871-882

This manikin study aimed to compare the performance of several supraglottic airway devices (SADs) in different blind intubation scenarios performed by 116 inexperienced physicians. The devices used included i-gel, Air-Q laryngeal airway and Ambu AuraGain. The three devices were tested on a paediatric manikin in three different scenarios, which included normal airway without chest compressions (A), normal airway with continuous chest compressions plus the CORPLUS CPR system (CCS) (B), and difficult airway with continuous chest compressions plus CCS (C). Parameters assessed in this investigation included first intubation success rate, median time to SAD placement, time to endotracheal intubation, as well as ease of intubation. Results have shown that the i-gel performed better in every scenario and in all parameters tested as compared to the other devices. Therefore, these data demonstrated that the i-gel is the most effective device for emergency blind intubation performed by inexperienced physicians in paediatric patients.

Link to abstract.

How do different brands of size 1 laryngeal mask airway compare with face mask ventilation in a dedicated laryngeal mask airway teaching manikin?

Tracy MB, Priyadarshi A, Goel D, Lowe K, Huvanandana J, Hinder M. Arch Dis Child Fetal Neonatal Ed. 2018 May;103(3)

This manikin study assessed and compared the delivered ventilation of seven, size 1 LMA devices with two different face masks using self-inflating bags (SIBs). 40 participants carried out resuscitation on a specialised infant training manikin using the LMAs and the face masks in a random fashion. Findings have shown that the i-gel had the highest peak inspiratory pressure and higher PEEP compared to the other devices. In addition, the i-gel showed no insertion failures and all users described it as easy to use. Thus, these results indicate that the i-gel may become the primary resuscitation device used for newborn resuscitation.

Link to abstract.