Esophageal High Resolution Manometry and Dysphagia

Inclusion Criteria: * Male or female older than 18 years * Patient with unexplained dysphagia * Patient without cause of dysphagia on eso-gastro-duodenal endoscopy * Patient referred for esophageal manometry * Patient with health insurance * Informed consent signed Exclusion Criteria: * Patient younger than 18 years * Allergy to one component of manometry catheter * Drug intake which can modify the esophageal motricity within 12 hours preceding the realization of the manometry * Patient unable to give his consent or legally incompetent * Patient non qualified according to the investigator * Patient refusal or absence of informed consent signed * Concomitant participation to another study