Table 1 Acid exposure in the esophagus in healthy volunteers
Proximal sensor | ( n= 16) | Distal sensor | ( n= 26) | |
|---|---|---|---|---|
Parameter | Median (range) | 95th percentile | Median (range) | 95th percentile |
Total % time pH<4 | 0.07 (0-0.4) | 0.4 | 0.4 (0.08-1.5) | 1.5 |
% time pH<4 in upright position | 0.02 (0-0.4) | 0.4 | 0.2 (0-3.0) | 3.0 |
% time pH<4 in supine position | 0.12 (0-0.5) | 0.5 | 0.4 (0.07-2.8) | 2.8 |
Total no. of reflux episodes | 6.0 (0-25.0) | 25.0 | 18.0 (2.7-94.2) | 94.2 |
No. of episodes ≥ 5 min | 0 (0-1) | 1.0 | 0 (0-2) | 2.0 |
Duration of longest reflux, min | 0.9 (0-7.8) | 7.8 | 1.9 (0.5-20.6) | 20.6 |
DeMeester score | 0.95 (0.2-4.8) | 4.8 | 3.35 (0.7-11.5) | 11.5 |