Esophageal Manometry, or motility study, is a catheter-based diagnostic test that helps evaluate the muscular function of the esophagus. It is used primarily to evaluate symptoms or problems in relation to swallowing, but may also be used to evaluate reflux, regurgitation and atypical chest pain.
Manometry is performed by placing a catheter through the nose and into the stomach. This study is done without sedation, as the patient has to swallow multiple times on command in order to obtain the necessary study information. A numbing agent may be applied to the nasal passages to ease discomfort. During these timed swallows, pressure and volume information is transmitted for analysis of esophageal muscle function.
This analysis may allow your physician to diagnose you with an esophageal motility disorder, which may have very targeted therapy including medication, dilation or even surgery.
How to prepare for esophageal manometry?
This test usually requires the patient be fasting for at least 6-8 hours. Certain medications can affect study results and may need to be discontinued prior to the test. These medications include but are not limited to, pain medications, sedative medications, anxiolytic medications, and prokinetic agents.