Table.
Characteristics of the Patients
| Baseline characteristics | Belching disorder (n = 10) | GERD (n = 10) | P-value |
|---|---|---|---|
| Age (yr) | 40.5 (28-77) | 58.5 (36-61) | NS |
| Gender | 5 female | 6 female | NS |
| Impedance-pH monitoring data | |||
| Esophageal acid exposure % time | 2.9 (0-7.1) | 5.2 (3.1-11) | NS |
| Composite score | 10.1 (0.8-25.3) | 15.9 (10.3-39.9) | NS |
| Acidic bolus exposure time | 0.75 (0.1-3.2) | 2.4 (1.5-7) | 0.002 |
| Number of liquid reflux | 42 (24-100) | 67 (30-141) | 0.028 |
| SI > 50% for belching | 2 (20) | 9 (90) | 0.0055 |
| SAP ≥ 95% for belching | 7 (70) | 10 (100) | NS |
| SI > 50% for heartburn or regurgitation | 1 (10) | 4 (40) | NS |
| SAP ≥ 95% for heartburn or regurgitation | 0 (0) | 1 (10) | NS |
| High-resolution manometry data | |||
| UES pressure (mmHg) | 34 (9.4-96.3) | 49.3 (20-72.5) | NS |
| Hyper-dynamic UES (pressure differences, mmHg) | 43.85 (4.3-94.9) | 52.6 (18.8-98.3) | NS |
| LES pressure (mmHg) | 13.8 (6-41.7) | 17.6 (2.5-40.2) | NS |
| Integrated relaxation pressure (mmHg) | 52.6 (18.8-98.3) | 10.8 (1.3-13.6) | NS |
| Chicago classification findings | |||
| Ineffective esophageal motility | 5 | 4 | |
| Fragmented peristalsis | 4 | 1 | |
| Absent contractility | 0 | 2 | |
| Hypercontractile esophagus | 1 | 0 | |
GERD, gastroesophageal reflux disease; NS, not significant; SI, symptom index; SAP, symptom association probability; UES, upper esophageal sphincter; LES, lower esophageal sphincter.
Data are presented as median (range) or n (%).