Table 1 List of current available diagnostic tools in the management of GERD
| Exam | Advantages | Disadvantage |
|---|---|---|
| 24 h Esophageal pH monitoring |
Gold standard for acid reflux Reference data available Reproducibility Portability |
The probe is often disconfortable Non acid or gas reflux are not detected |
| Esophageal manometry |
Identification of the GER mechanisms Evaluation of the esophageal and sphincter motility pattern Measurement of esophageal length Portability |
Limited availability Trained personnel |
| Endoscopy |
Description of esophageal mucosal damage Biopsy allows histological description |
Anesthesia is needed Trained personnel |
| Rx series | Fine definition of anatomy |
Poor information on the GER mechanism Possible aspiration Rx exposure Not portable |
| Scintigraphy | Study of gastric emptying |
Radiation exposure Not portable |