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 |