Table 2.
Endotracheal tubes and intubation data*
| Characteristics | G ISIS N = 17 | G Evac N = 17 | G Stand N = 16 | P value |
|---|---|---|---|---|
| ETT size (mm) |
7.6 ± 0.5 |
7.5 ± 0.5 |
7.4 ± 0.6 |
0.590 |
| Time to intubate the trachea (min) |
0.85 ± 0.31 |
0.83 ± 0.27 |
0.73 ± 0.29 |
0.441 |
| ETT depth (cm) |
22.6 ± 1.5 |
22.3 ± 1.7 |
21.5 ± 1.9 |
0.286 |
| Number of intubation attempts |
|
|
|
|
| 1 |
14 |
15 |
15 |
0.664 |
| 2 |
2 |
2 |
1 |
|
| 3 |
1 |
0 |
0 |
|
| Insertion into the trachea |
|
|
|
0.235 |
| easy |
11 |
15 |
14 |
|
| moderate |
4 |
2 |
2 |
|
| difficult |
2 |
0 |
0 |
|
| use of stylet |
2 |
2 |
1 |
0.832 |
| Intubation Cormack-Lehane grade view |
|
|
|
0.334 |
| I |
12 |
14 |
11 |
|
| II |
4 |
3 |
2 |
|
| III |
1 |
0 |
3 |
|
| Distance between ETT distal end and the carina (mm) |
30.8 ± 6.5 |
26.8 ± 5.5 |
26.0 ± 6.8 |
0.067 |
| Cuff pressure (mmHg) | 21.2 ± 2.7 | 20.2 ± 1.8 | 21.2 ± 2.5 | 0.389 |
*Abbreviations: GISIS – Teleflex ISIS HVT tube; GEvac – Mallinckrodt TaperGuard Evac tube; GStand –Mallinckrodt Intermediate Hi-Lo tube ETT without suction; ETT – endotracheal tube.