Duration of oesophageal pressure waves recorded during short term and prolonged manometry and during complete lower oesophageal sphincter (LOS) relaxations
|
Wet swallows (short term manometry) |
Fasting period (prolonged manometry) | Complete LOS relaxations (prolonged manometry) | |
| No patients | 10 | 11 | 7 |
| Duration proximal (s) | 5.4 (4.7–6.9) | 4.5 (3.9–5.3) | 8.8 (7.5–15.5)a b |
| Duration mid (s) | 5.4 (4.7–6.9) | 4.3 (4.2–5.5) | 12.1 (9.3–16.5)a b |
| Duration distal (s) | 5.4 (4.7–6.9) | 5.2 (4.4–5.4) | 14.1 (12.3–17.2) a b |
2-a p<0.05 versus short term manometry;
2-b p<0.02 versus prolonged manometry.