Table 3.
Intraoperative bronchoscopy data*†
| Grade | G ISIS N = 17 | G Evac N = 16* | G Stand N = 16 | P value |
|---|---|---|---|---|
| Dye below vocal cords above the inflated ETT cuff |
|
|
|
0.037* |
| 0 |
4 |
1 |
1 |
|
| 1 |
2 |
8 |
1 |
|
| 2 |
10 |
6 |
12 |
|
| 3 |
1 |
1 |
2 |
|
| Dye in distal trachea below the inflated ETT cuff above carina |
|
|
|
0.367 |
| 0 |
17 |
16 |
14 |
|
| 1 |
0 |
0 |
1 |
|
| 2 |
0 |
0 |
1 |
|
| 3 |
0 |
0 |
0 |
|
| Dye below the carina in the bronchi |
|
|
|
0.349 |
| 0 |
17 |
16 |
15 |
|
| 1 |
0 |
0 |
0 |
|
| 2 |
0 |
0 |
1 |
|
| 3 |
0 |
0 |
0 |
|
| Ischemia of tracheal mucosa below the vocal cords above the inflated ETT cuff |
|
|
|
0.941 |
| 0 |
0 |
0 |
0 |
|
| 1 |
6 |
5 |
7 |
|
| 2 |
9 |
9 |
8 |
|
| 3 |
2 |
2 |
1 |
|
| Blood below the vocal cords above the inflated ETT cuff |
|
|
|
0.824 |
| 0 |
5 |
6 |
7 |
|
| 1 |
9 |
7 |
7 |
|
| 2 |
2 |
3 |
2 |
|
| 3 |
1 |
0 |
0 |
|
| Secretions below the vocal cords above the inflated ETT cuff, external to the ETT |
|
|
|
0.368 |
| 0 |
0 |
2 |
3 |
|
| 1 |
13 |
12 |
9 |
|
| 2 |
4 |
2 |
4 |
|
| 3 |
0 |
0 |
0 |
|
| Secretions in the distal trachea below the inflated ETT cuff above the carina, external to the ETT |
|
|
|
0.377 |
| 0 |
5 |
3 |
3 |
|
| 1 |
6 |
11 |
6 |
|
| 2 |
5 |
2 |
5 |
|
| 3 |
1 |
0 |
2 |
|
| Secretions below the carina in the bronchi |
|
|
|
0.673 |
| 0 |
9 |
11 |
11 |
|
| 1 |
7 |
4 |
3 |
|
| 2 |
0 |
1 |
1 |
|
| 3 |
1 |
0 |
1 |
|
| Secretions within the ETT lumen |
|
|
|
0.388 |
| 0 |
0 |
1 |
0 |
|
| 1 |
8 |
7 |
6 |
|
| 2 |
7 |
6 |
4 |
|
| 3 | 2 | 2 | 6 |
*Abbreviations: GISIS – Teleflex ISIS HVT tube; GEvac – Mallinckrodt TaperGuard Evac tube; GStand –Mallinckrodt Intermediate Hi-Lo tube ETT without suction; ETT – endotracheal tube.
†One bronchoscopy recording in the GEvac group was corrupted and not able to be evaluated.