Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 11/6/2025

I-Gel Device Characteristics and Clinical Performance

Device Description and Technical Considerations

  • The I-Gel is a second-generation supraglottic airway with high oropharyngeal seal pressure, making it suitable for critically ill patients and rescue airway scenarios, according to the British Journal of Anaesthesia guidelines 1, 2

Insertion Technique and Airway Management

  • Insert the I-Gel after loss of consciousness to avoid coughing, as recommended by Anaesthesia 3, 4
  • Confirm placement with waveform capnography, as suggested by Circulation 5, 6

Critical Airway Management Context

  • If using the I-Gel as a rescue device after failed intubation, limit yourself to one optimal attempt at SGA placement before considering front-of-neck access, according to the British Journal of Anaesthesia guidelines 1, 2
  • The I-Gel can serve as a conduit for fiberoptic-guided intubation if needed, though this should be limited to a single attempt, as recommended by the British Journal of Anaesthesia 1, 7, 8
  • When used for fiberoptic-guided intubation, a 6.0 mm internal diameter endotracheal tube can typically be passed through the device, according to the British Journal of Anaesthesia 1, 8