i-gel™ (n = 55) | LMA-Protector™ (n = 55) | P-value | |
---|---|---|---|
Number of insertion attempts | |||
one | 51 (93) | 50 (91) | 1.000 |
two | 4 (7) | 5 (9) | |
three | 0 (0) | 0 (0) | |
Insertion time (sec) | 19 (16) | 27 (16) | < 0.001 |
Airway leak pressure (cmH2O) | 27 (6) | 31 (7) | 0.016 |
Ease of insertion | |||
Easy | 45 (82) | 37 (67) | 0.125 |
Fair | 10 (18) | 18 (33) | |
Difficult | 0 (0) | 0 (0) | |
Fibreoptic examination | |||
Only vocal cords | 44 (80) | 9 (16) | < 0.001 |
Vocal cords and posterior part of the epiglottis | 8 (15) | 28 (51) | |
Vocal cords and anterior part of the epiglottis | 3 (5) | 11 (20) | |
Vocal cords not seen, but adequate ventilation | 0 (0) | 7 (13) | |
Ease of gastric tube insertion | |||
First attempt | 51 (93) | 27 (49) | < 0.001 |
Second attempt | 3 (5) | 19 (35) | |
Impossible | 1 (2) | 9 (16) | |
Blood staining on the device | 4 (7) | 13 (24) | 0.033 |