Dysphagia other diagnostic studies
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Hamid Qazi, MD, BSc [2], Feham Tariq, MD [3]
Overview
Other diagnostic studies for dysphagia include esophageal manometry, electromyography, and electroglottograpghy.
Other Diagnostic Studies
Other diagnostics studies for dysphagia are as follows:[1][2]
- Electromyography (EMG)
- Electroglottography (EGG) (records vocal fold movement)
- Manometry
Esophageal manometry
Manometry is performed to assess motor function of the esophagus.
- High resolution manometry is recommended.
- Most commonly indicated for diagnosing esophageal dysphagia.
- Uses miniature, multichannel, water-perfused catheters or solid-state catheters
- Pressures gradients are recorded along the esophageal body and the gastroesophageal junction
- Computerized interpolation generates esophageal pressure isocontour lines.
- Facilitates differentiation between a restrictive disorder and muscular weakness in the pharyngoesophageal segment.{{#ev:youtube|795yXyvZaAs}}
Electromyography
- Electromyography has limited use clinically in diagnosing dysphagia.
- Two subtypes:
- Swallowing electromyography
- Laryngeal electromyography
References
- ↑ Pandolfino, John E; Ghosh, Sudip K; Rice, John; Clarke, John O; Kwiatek, Monika A; Kahrilas, Peter J (2008). "Classifying Esophageal Motility by Pressure Topography Characteristics: A Study of 400 Patients and 75 Controls". The American Journal of Gastroenterology. 103 (1): 27–37. doi:10.1111/j.1572-0241.2007.01532.x. ISSN 0002-9270.
- ↑ Omari, T.; Bakewell, M.; Fraser, R.; Malbert, C.; Davidson, G.; Dent, J. (1996). "Intraluminal micromanometry: an evaluation of the dynamic performance of micro-extrusions and sleeve sensors". Neurogastroenterology & Motility. 8 (3): 241–245. doi:10.1111/j.1365-2982.1996.tb00263.x. ISSN 1350-1925.