Fernández Díez A, Prez Villafane A, Bermejo González JC, Marcos Vidal JM. Rev Esp Anestesiol Reanim 2009; 56: 474- 478
In this study, 85 patients were randomised into two groups for ventilation via LMA Supreme® or i-gel® supraglottic airways. Ease of insertion, seal pressure, ventilatory parameters and insertion of a gastric tube were all recorded. Both devices were easy to insert, with the SupremeTM and i-gel® being inserted on the first attempt in 95.2 and 86% of cases respectively. Performance was generally comparable.
Theiler LG, Kleine-Brueggeney M, Kaiser D, Urwyler MD, Luyet C, Vogt A, Greig R, Unibe MME. Anesthesiology 2009; 111(1): 55-62
This study looked at a simulated difficult airway scenario by using a neck collar to limit both mouth opening and neck movement. Both devices were placed in random order in each of 60 patients. The primary outcome was overall success rate. Other measurements included time to successful ventilation, seal pressure, fibreoptic view and adverse events.The authors concluded the two devices tested had a ‘similar insertion success and clinical performance in the simulated difficult airway situation’. The i-gel® enabled better fibreoptic laryngeal view and less epiglottic downfolding.
Link to abstract.