Table 3 24-hour multi-channel intraluminal impedance and pH measurements
Measurements n = 69 | N (%) |
|---|---|
Abnormal acid exposure time | 43 (62.3) |
Upright ≥6.2% | 18 (26.0) |
Recumbent ≥1.2% | 28 (40.6) |
Total ≥4.2% | 20 (29.0) |
Total proximal reflux events: acid | 714 (50.7) |
            Non-acid | 695 (49.3) |
Patients with abnormal proximal reflux events | 26 (37.7) |
Acid reflux event ≥28 | 5 (7.2) |
Non-acid reflux event ≥13 | 22 (31.9) |
Total reflux event ≥31 | 15 (21.7) |
Total distal reflux: acid | 1187 (43.8) |
        Non-acid | 1524 (56.2) |
Patients with abnormal distal reflux events | 23 (33.3) |
Acid reflux event ≥55 | 0 (0) |
Non-acid reflux event ≥27 | 23 (33.3) |
Total reflux event ≥73 | 5 (7.2) |
DeMeester score: positive | 20 (29.0) |
        Negative | 49 (71.0) |