Table 2 Outcomes. Data are presented as mean (standard deviation), median (quartiles), and frequency (%)
Ramped group (n = 30) | Modified ramped group (n = 30) | P value | |
|---|---|---|---|
Relatively difficult mask ventilation | 25 (83%)* | 6 (20%) | < 0.001 |
Difficult laryngoscopy | 14 (47%)* | 1 (3%) | < 0.001 |
Time till vocal cord visualization (seconds) | 17 (2)* | 12 (3) | < 0.001 |
Time till endotracheal tube insertion (seconds) | 42 (3)* | 33 (2) | < 0.001 |
Cormak-Lehane view without cricoid pressure | IIb (IIa-IIb) * | IIa (I-IIb) | 0.01 |
Cormack-Lehane view with cricoid pressure | I (I-IIa) * | I (I-I) | 0.03 |
Cormack-Lehane view without cricoid pressure | |||
I | 5 (17%) | 14 (47%) | 0.04 |
II(a) | 7 (24%) | 8 (27%) | |
II(b) | 12 (40%) | 5 (17%) | |
III | 6 (20%) | 3 (10%) | |
Cormack-Lehane view with cricoid pressure | |||
I | 16 (53%) | 24 (80%) | 0.09 |
II(a) | 11 (37%) | 5 (17%) | |
II(b) | 3 (10%) | 1 (3%) | |
III | |||
Number of intubation trials | 1 (1,1) | 1 (1,1) | 1 |
First end-tidal CO2 reading (mmHg) | 35.1 (4.4) | 34.9 (3.9) | 0.88 |