TABLE 3.

Possible combinations for intubation of TTs through SGAs

*air-Q #3.5 corresponds to SGA #4 and air-Q #4.5 corresponds to SGA #5

Feasibility and ease of insertion of 13 different TT brands, sizes (ID) 6.5, 7.0, 7.5, and 8.0 mm and (OD), through SGAs size #4 and #5 of different brands. TT passage through SGAs is classified as follows: green squares = easy passage; yellow squares = passage with resistance but possible; and red squares = passage not possible. Locations of resistance are classified as A for proximal SGA inlet, B for SGA tube, and C for distal SGA outlet. Squares marked with thicker lines and “X” indicate a combination of TT size and SGA not recommended by the manufacturer. ID = internal diameter; OD = outer diameter; SGA = supraglottic airway device; TT = tracheal tube