Fiberoptic Endoscopic Evaluation of Swallowing (FEES)

Endoscopic evaluation of swallowing involves the transnasal passage of a flexible fiberoptic endoscope into the hypopharynx to allow for a superior view of the structures of the pharynx and the larynx. Swallow function is observed prior to onset and after completion of the pharyngeal phase of swallowing. It is important for Speech–Language pathologists to know about this examination because individuals with swallowing disorders are seen across a variety of clinical settings, including hospitals, skilled nursing facilities, home health, and schools.


Endoscopic examination of swallowing was first introduced in the late 1980s. It was developed as an adjunct to the videofluoroscopic swallow study. During endoscopic examination of swallowing, a flexible fiberoptic endoscope, usually 3.4 mm in diameter, is passed through the nose, past the hard and ...

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