Gasteiger L, Brimacombe J, Perkhofer D, Kaufmann M, Keller C. Anaesthesia 2010; 65(9): 913-916
This study compared the use of the LMA Proseal® and the i-gel® in 152 adult female patients. A duodenal tube guided insertion technique was used for both devices. There was no significant difference between insertion success rates and insertion times of the two devices. Leak pressure was 7cm H2O higher with the ProSeal®, providing a better seal for ventilation.
Link to abstract