Pre and three month post procedure means for 24 hour oesophageal pH values, lower oesophageal sphincter (LOS) pressure, and LOS lengths
| Measurement | n* | Baseline | 3 months | p Value† |
|---|---|---|---|---|
| Values are mean (SEM). | ||||
| *Number of patients (one patient excluded as failed to attend for follow up pH post procedure). | ||||
| †Wilcoxon signed rank test. | ||||
| DeMeester acid score | 21 | 44.1 (4.338) | 33.32 (4.73) | 0.028 |
| DeMeester acid score for group off PPIs | ||||
| At 12 months | 13 | 41.36 (5.59) | 27.28 (5.71) | 0.039 |
| DeMeester acid score for group on PPIs | ||||
| At 12 months | 8 | 48.04 (7.05) | 42.06 (7.54) | 0.374 |
| Upright (%) | 21 | 13.47 (1.26) | 9.09 (1.14) | 0.002 |
| No of episodes of acid reflux | 21 | 177.35 (14.03) | 118.2 (13.42) | 0.002 |
| Supine (%) | 21 | 8.17 (2.02) | 7.06 (1.7) | NS |
| Total time pH <4 (%) | 21 | 11.11 (1.03) | 9.34 (1.36) | NS |
| LOS pressure (mm Hg) | 21 | 10.78 (1.05) | 10.84 (0.99) | NS |
| LOS length (cm) | 21 | 3.913 (0.23) | 3.45 (0.21) | NS |