LMA-Unique

i-gel

p

Tidal volume-inspired, ml

537 (76)

543 (88)

0.96

Tidal volume expired, ml

514 (69)

509 (82)

0.99

Leak volume, ml

23 (16)

34 (30)

0.36

Leak volume in %

4%

6%

 

Peak airway pressure, cm H2O

15 (3)

14 (3)

0.34

Airway leak pressure, cm H2O

21 (4)

20 (3)

0.39
no significant difference
Table 3: The tidal volume, leak volume, peak airway pressure and airway leak pressure; mean (SD) for LMA-Unique and i-gel.