Esophageal motility study

Esophageal motility study
Diagram of esophageal motility study in 'nutcracker esophagus'. The disorder shows peristalsis with high pressure esophageal contractions exceeding 180 mmHg and contractile waves with a long duration exceeding 6 seconds.
ICD-9-CM89.32
OPS-301 code1-313
MedlinePlus003884

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).

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