Can I intubate through the LMA-ProSeal?
The airway tube of the LMA-ProSeal has a smaller diameter than that of the LMA-Classic and LMA-Fastrach, but is sufficiently wide and short enough to accommodate endotracheal tubes in an emergency or difficult airway situation, if desired. The size 4 LMA-ProSeal will allow passage of a size 5 uncuffed endotracheal tube and the size 5 LMA-ProSeal will allow passage of a size 6 cuffed endotracheal tube. In general, however, when intubation is anticipated, the LMA-Fastrach should be used.