Beleña JM, Núñez M, Vidal A, Gasco C, Alcojor A, Lee P, Pérez JL. Anaesthesist. 2015 Apr;64(4):271-6
140 patients split into device groups, with speed of insertion, success rates, leak pressure and tidal volume evaluated. i-gel proved quicker to insert and generally the results were comparable.
Link to abstract.