LOS pressure and inspiratory augmentation pressure in hiatus hernia and control groups
| Hiatus hernia | Controls | p Value | |
|---|---|---|---|
| Peak LOSP on inspiration (mm Hg) (IQR) | |||
| FU | 36.9 (20.78) | 32.2 (21.41) | 0.870 |
| FS | 30.7 (13.21) | 35.6 (10.24) | 0.345 |
| PPU | 29.4 (12.74) | 30.1 (16.48) | 0.838 |
| PPS | 27.4 (10.63) | 34.2 (9.09) | 0.137 |
| Peak LOSP on expiration (mm Hg) (IQR) | |||
| FU | 27.8 (22.04) | 21.6 (14.25) | 0.683 |
| FS | 26.0 (16.52) | 24.2 (7.10) | 0.461 |
| PPU | 22.9 (11.74) | 18.2 (7.04) | 0.074 |
| PPS | 24.8 (13.92) | 24.9 (8.57) | 0.775 |
| Inspiratory augmentation pressure (mm Hg) | |||
| FU | 6.97 (7.76) | 10.4 (11.15) | 0.624 |
| FS | 5.12 (7.98) | 6.12 (12.2) | 0.137 |
| PPU | 6.59 (9.07) | 12.18 (14.8) | 0.217 |
| PPS | 3.82 (9.08) | 8.52 (4.61) | 0.037 |
FS, fasting supine; FU, fasting upright; LOS, lower oesophageal sphincter; LOSP, lower oesophageal sphincter pressure; PPS, postprandial supine; PPU, postprandial upright.