Table 1 Endotracheal tube cuff pressure values following patient position changes
From: Effect of body position changes on endotracheal tube cuff pressure in ventilated patients
|  | Cuff pressure (cmH2O)a | P for Δ from start position (25 cmH2O) | Measurements >30 cmH2O (n(%)) |
|---|---|---|---|
Anteflexion head | 33.5 (27.5 to 42.0) | 0.005 | 9 (75) |
Hyperextension head | 30.5 (27.5 to 42.0) | 0.004 | 6 (50) |
Lateral flexion head, left | 26.5 (25.3 to 28.8) | 0.025 | 1 (8) |
Lateral flexion head, right | 27.0 (25.3 to 29.8) | 0.049 | 2 (17) |
Rotation head, left | 27.0 (26.3 to 33.8) | 0.003 | 3 (25) |
Rotation head, right | 28.0 (26.3 to 38.8) | 0.02 | 4 (33) |
Semirecumbent, 45° HoB | 28.0 (25.3 to 31.5) | 0.009 | 2 (17) |
Recumbent, 10° HoB | 28.0 (25.3 to 31.5) | 0.016 | 3 (25) |
Horizontal back rest | 28.5 (25.3 to 31.5) | 0.011 | 3 (25) |
Trendelenburg, 10° | 29.0 (25.3 to 32.0) | 0.008 | 5 (42) |
Left lateral position, 30° | 30.5 (25.3 to 32.0) | 0.01 | 6 (50) |
Left lateral position, 45° | 30.5 (27.3 to 32.8) | 0.005 | 6 (50) |
Left lateral position, 90° | 34.0 (27.0 to 36.8) | 0.006 | 7 (58) |
Right lateral position, 30° | 31.0 (27.0 to 34.5) | 0.003 | 6 (50) |
Right lateral position, 45° | 32.5 (28.3 to 35.8) | 0.002 | 8 (50) |
Right lateral position, 90° | 31.0 (29.3 to 35.0) | 0.003 | 7 (58) |
Total (192 measurements) | - | - | 78 (40.6) |