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An esophageal motility study (EMS) or esophageal manometry is a test to assess motor function of the upper esophageal sphincter (UES), esophageal body and lower esophageal sphincter (LES). [ 1 ] Indications
Functional Lumen Imaging Probe (FLIP) is a test used to evaluate the function of the esophagus, by measuring the dimensions of the esophageal lumen using impedance planimetry. Typically performed with sedation during upper endoscopy , FLIP is used to evaluate for esophageal motility disorders , such as achalasia , diffuse esophageal spasm , etc ...
High-resolution manometry (HRM) is a gastrointestinal motility diagnostic system that measures intraluminal pressure activity in the gastrointestinal tract using a series of closely spaced pressure sensors. For a manometry system to be classified as "high-resolution" as opposed to "conventional", the pressure sensors need to be spaced at most 1 ...
In gastroenterology, esophageal pH monitoring is the current gold standard for diagnosis of gastroesophageal reflux disease (GERD). It provides direct physiologic measurement of acid in the esophagus and is the most objective method to document reflux disease, assess the severity of the disease and monitor the response of the disease to medical or surgical treatment.
EGJOO is diagnosed using esophageal manometry. [2] High resolution esophageal manometry will show elevated pressure at the LES with normal peristalsis. [2] The LES pressure is evaluated immediately following a swallow, when the sphincter should relax. [3]
The diagnosis is made by an esophageal motility study (esophageal manometry), which evaluates the pressure of the esophagus at various points along its length. The term "nutcracker esophagus" comes from the finding of increased pressures during peristalsis , with a diagnosis made when pressures exceed 180 mmHg; this has been likened to the ...
Schematic of manometry in achalasia showing aperistaltic contractions, increased intraesophageal pressure, and failure of relaxation of the lower esophageal sphincter. Because of its sensitivity, manometry ( esophageal motility study ) is considered the key test for establishing the diagnosis.
Diffuse esophageal spasm (DES), also known as distal esophageal spasm, is a condition characterized by uncoordinated contractions of the esophagus, which may cause difficulty swallowing or regurgitation. In some cases, it may cause symptoms such as chest pain, similar to heart disease. In many cases, the cause of DES remains unknown.