Table 1.
High-resolution Manometry Predictors of Esophagogastric Junction Obstruction on Timed Barium Esophagogram
| Parameters (cut-off value) | Sensitivity (%) | Specificity (%) | LR+ | LR− | AUC |
|---|---|---|---|---|---|
| Esophageal pressure (≥ 27.2 mmHg) | 70 | 70 | 2.3 | 0.4 | 0.74 |
| Gastric pressure (≥ 17.9 mmHg) | 40 | 50 | 0.8 | 1.2 | 0.49 |
| Esophageal-gastric gradient (≥ 7.7 mmHg) | 70 | 80 | 3.5 | 0.4 | 0.72 |
| IRP 200 mL (≥ 17mmHg) | 75 | 90 | 7.5 | 0.28 | 0.81 |
| 200 mL duration (≥ 21.8 sec) | 60 | 50 | 1.2 | 0.8 | 0.58 |
| Number of columns greater than 20 mmHg (≥ 12) | 40 | 50 | 0.8 | 1.2 | 0.54 |
| Sum of time greater than 20 mmHg (≥ 16.7 sec) | 65 | 80 | 3.2 | 0.43 | 0.68 |
| Percentage of time with pressure greater than 20 mmHg (≥ 0.74) | 70 | 80 | 3.5 | 0.37 | 0.76 |
LR+, positive likelihood ratio; LR−, negative likelyhood ratio; AUC, area under the curve; IRP, integrated relaxation pressure.