title: Uses of esophageal function testing: dysphagia.
abstract: Esophageal function testing should be used for differential diagnosis of dysphagia. Dysphagia can be the consequence of hypermotility or hypomotility of the muscles of the esophagus. Decreased esophageal or esophagogastric junction distensibility can provoke dysphagia. The most well established esophageal dysmotility is achalasia. Other motility disorders can also cause dysphagia. High-resolution manometry (HRM) is the gold standard investigation for esophageal motility disorders. Simultaneous measurement of HRM and intraluminal impedance can be useful to assess motility and bolus transit. Impedance planimetry measures distensibility of the esophageal body and gastroesophageal junction in patients with achalasia and eosinophilic esophagitis.
authors.affiliation: Centre for Digestive Diseases, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK; Gastrointestinal Physiology Unit, Barts Health NHS Trust, Royal London Hospital, London, UK.
authors.forename: Etsuro
authors.initials: E
authors.lastname: Yazaki
authors.affiliation: Centre for Digestive Diseases, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK; Gastrointestinal Physiology Unit, Barts Health NHS Trust, Royal London Hospital, London, UK.
authors.forename: Philip
authors.initials: P
authors.lastname: Woodland
authors.affiliation: Centre for Digestive Diseases, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK; Gastrointestinal Physiology Unit, Barts Health NHS Trust, Royal London Hospital, London, UK. Electronic address: d.sifrim@qmul.ac.uk.
authors.forename: Daniel
authors.initials: D
authors.lastname: Sifrim
mesh_terms: D003680:Deglutition Disorders / Q000175:diagnosis* / Q000503:physiopathology; D017097:Electric Impedance; D057765:Eosinophilic Esophagitis / Q000175:diagnosis* / Q000503:physiopathology; D004931:Esophageal Achalasia / Q000175:diagnosis / Q000503:physiopathology; D004943:Esophagogastric Junction / Q000503:physiopathology; D004947:Esophagus / Q000503:physiopathology*; D006801:Humans; D008365:Manometry
keywords: Dysphagia; Esophageal motility; High-resolution manometry; Impedance planimetry