Flexible Endoscopic Evaluation of Swallowing

A flexible endoscopic evaluation of swallowing (FEES) test checks how well you swallow. In this test, a speech-language pathologist (SLP) uses a thin, flexible tube with a camera and light, passed through your nose into your throat. This lets the SLP see your throat and voice box on a screen.

The FEES test has two parts. In the first part, the SLP observes how well you swallow saliva. In the second part, you swallow food of different textures and sizes, sometimes colored for better viewing. You may need to change positions or try different foods as the SLP assesses your swallowing and throat function.

indications

You may need this test if you have trouble swallowing, known as dysphagia. Dysphagia means your swallowing muscles aren’t working correctly. This can cause food or drink to enter the airway or lungs, leading to problems like pneumonia. Therefore, it’s important to find and treat dysphagia quickly if you have it.

You may require a FEES test if you feel food stuck in your throat or experience pain while swallowing. You might also need a FEES test if you have a medical condition that increases your risk of dysphagia, even without symptoms. Some people with dysphagia may not notice any signs. For example, if you've had a stroke, it’s necessary to check for dysphagia, which might involve a FEES test. Other conditions that can cause dysphagia include:

  • Head and neck cancer.

  • Head injury.

  • Conditions that lead to decreased saliva (such as Sjogren’s syndrome).

  • Parkinson’s disease or other neurologic conditions.

  • Muscular dystrophies.

  • Obstruction in the esophagus (such as from cancer)

risks

All procedures have some risks. The risks of FEES include:

  • Nosebleed.

  • Discomfort.

  • Gagging or vomiting.

  • Brief closure of your airway (laryngospasm).

  • Aspiration (usually only a small amount).

The SLP will work to minimize these risks. Your own risks may vary according to your age, your general health and the reason for your procedure. Talk with the SLP to find out what risks may apply to you.