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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)
  1. HoB, head of bed elevation. aCuff pressure values reported as median (first to third quartile).