Table 1 The tracheal AP and transverse diameters at 20 mm above the cuff, the mid-cuff level and 20 mm below the cuff are shown for the HVLP.
Level | Diameter above cuff (mm) | Diameter at mid cuff (mm) | Diameter below cuff (mm) | |||
|---|---|---|---|---|---|---|
| Â | AP | Transverse | AP | Transverse | AP | Transverse |
1 | 14 | 17 | 22 | 20 | 21 | 14 |
2 | 25 | 27 | 27 | 22 | 17 | 19 |
3 | 24 | 15 | 25 | 24 | 18 | 25 |
4 | 16 | 15 | 17 | 16 | 14 | 15 |
5 | 17 | 16 | 21 | 20 | 13 | 16 |
6 | 24 | 21 | 26 | 21 | 20 | 23 |
7 | 17 | 15 | 20 | 18 | 15 | 15 |
Mean (SD) | 19.6 (4.6) | 18 (4.5) | 22.6 (3.6) | 20.1 (2.6) | 16.9 (3.0) | 18.1 (4.3) |