The Effect of Diet Composition Change on High-Resolution Oesophageal Manometry Metrics in Non-Erosive Gastroesophageal Reflux Disease Patients
Abstract
To evaluate the influence of change of diet composition on esophageal manometry metrics.
The data of 43 NERD patients with low (<20 g/day) baseline dietary fiber intake served as a source data. These patients were examined with the use of standard food frequency questionnaire and high-resolution esophageal manometry. Thirty of them received psyllium 5.0 g TID 10 days in addition of their usual diet within registered clinical trial (NCT01882088). The other 13 were found in the database by diagnosis; their data were eligible in case of the presence of repeated high-resolution esophageal manometry examination and dietary assessments at the same time point and if no significant change in diet composition was revealed. The changes were assessed in accordance to Chicago classification 3.0. Non-parametric statistics (Wilcoxon matched pairs test, Mann-Whitney U-test) were used to assess the change in HRM metrics in these groups.
In those who received psyllium, significant increase of minimal lower esophageal resting pressure at rest and after 10 water swallows was registered: 5.41 ± 10.1 vs 11.3 ± 9.4 mm Hg, P = 0.023 and 14.1 ± 8.0 vs 14.9 ± 6.4 mm Hg, P = 0.008, accordingly. No significant difference was found in the group with no change of diet composition by these parameters. At baseline, ineffective esophageal motility was found in 46.7% patients of the study group and 53.8% in the control group (P = 0.7). Esophageal motility became normal in 71.4% of those who had IEM…
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