Swallowing Problems

Fiberoptic Endoscopic Evaluation of Swallowing with Sensory Testing (FEESST)

During the fiberoptic endoscopic evaluation of swallowing, a patient usually undergoes sensory testing as well to evaluate sensation in the throat. During this portion of the test, air pulses that vary in intensity are delivered through a small opening in the endoscope. The vocal folds (cords) close reflexively in response to the air pulses. If the vocal folds don't close, the test shows that sensation in the throat is impaired, which may cause liquids and foods to go into the airway.

This test is particularly helpful for evaluating swallowing problems in patients with anatomical changes from surgery on the throat, impaired vocal fold movement, feeling of excess phlegm accumulation or a history of reflux.