
What is FEES?
Flexible Endoscopic Evaluation of Swallowing (FEES) is an instrumental swallow study that uses a flexible endoscope. During the exam, the scope is passed through the nose and into the back of the throat where a camera is used to visualize the pharynx, larynx, and upper esophageal opening. The patient is given various items to eat and drink, dyed green to evaluate the swallowing function, determine safest diet level, and presence of aspiration. The exam is performed by a qualified and licensed Speech Language-Pathologist (SLP) for patients with dysphagia (swallowing disorder).


FEES vs. MBSS
Why choose FEES over MBSS?
Exposure risks.
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FEES does not use barium and involves no radiation exposure. Food/drink is dyed using FDA approved green food coloring. This allows for its distinction against laryngeal and pharyngeal structures.
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MBSS is completed under video fluoroscopy (moving X-ray), which involves radiation exposure. To limit patient exposure, the x-ray image is turned on for short periods of time and the duration of the exam is limited to only a few minutes. This time constraint can sometimes limit clinical findings (e.g., fatigue factors, increased respiratory/swallow discoordination, reflux findings, etc.).
Positioning limitations.
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FEES is an endoscopic exam that is portable and thus can be performed at the patient’s bedside. FEES is completed in any position the patient will be in during eating.
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MBSS is completed in a radiology suite, thus, patients must be transported to the hospital. Patients are seated upright to clearly view swallowing structures. This process is less conducive for specific populations (e.g., bariatric, ventilator-dependent, easily fatigued, painful wounds, etc.).
Poor respiratory status with concern of aspiration during exam.
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Aspiration of secretions is the biggest predictor for aspiration pneumonia (7).
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FEES can examine secretion (saliva) management and can detect aspiration of a patient’s own secretions. FEES is a sensitive and conservative exam. Aspiration of secretions and ice chips can be evaluated to gain critical information on a patient’s anatomic and physiologic swallow impairments. Even conservative exams can yield appropriate therapy plans! No need to delay testing for patients who have severe-profound dysphagia.
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MBSS does not detect secretions, thus cannot detect aspiration of secretions before testing foods/liquids.
Timely.
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Due to its portability, FEES can be conducted in any setting. Patients do not need to be transported to an outside facility, and with SCOPE Speech-Language Pathology, the FEES can be completed within 1-3 business days. This means no delays in scheduling due to coordination with busy radiology departments.
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MBSS is scheduled with the radiology department. This can sometimes result in delayed access to this essential exam, which in turn can result in misdiagnosis and higher risk for re-hospitalization due to dysphagia-related complications.
Pictures are priceless.
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FEES completed by SCOPE Speech-Language Pathology will provide you with a report the same day. The report will also include pictures of significant findings.
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MBSS reports must be requested through a facility’s medical records department. This can results in delayed access to detailed results.
Cost benefits for nursing homes and residents.
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No cost for transportation outside of a nursing home or rehab facility. We come to you and complete the exam at the bedside.
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MBSS is performed in outpatient setting. Therefore, the facility must pay for transportation to and from the exam.
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FEES is performed by a speech language-pathologist (SLP). The exam does not require presence of a Doctor.
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MBSS is performed by a SLP, Radiologist, and Radiology Technician. The cost to complete this exam includes the cost of all three team members.
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FEES with SCOPE Speech-Language Pathology is billed as a one-time flat charge, with no hidden costs. Ask us about our billing process and how your facility can be reimbursed and spend significantly less overall.
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With FEES, the facility does not miss out on designated treatment minutes. The facility’s SLP is able to bill their therapy treatment code while assisting with the exam. This means that completing the FEES will not disrupt productivity for skilled residents or result in denial of facility SLP claims for managed care residents.
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With MBSS, the procedure takes only a few minutes, however the patient is gone from the facility for multiple hours. While the patient is gone, the patient and facility lose designated therapy minutes for the day, affecting patient's progress towards goals, therapist's productivity, and ultimately affecting the RUG level.

FAQ
Who would benefit from FEES?
FEES can be performed on any patient with dysphagia. Including patients with dementia, tube feeding, isolation precautions, tracheostomy, ventilator dependent, challenging positioning, and other complex medical needs.
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Is FEES new?
FEES is not new. FEES was first implemented in 1986 by Susan Langmore, Ph.D, CCC-SLP, BCS-S, and her research team. Langmore first published data demonstrating the effectiveness of FEES in 1988 (1).
FEES is within the scope of practice of the Speech-Language Pathologist, and is a highly sensitive and effective instrumental assessment for evaluation of swallowing disorders.
The American Speech-Language Hearing Association (ASHA) endorses the procedure and created guidelines in May of 1991. View ASHA Position Statement (2).
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Does it hurt?
Typically, FEES does not hurt. Topical anesthesia can be used if desired by the patient and when ordered by the physician.
Research by Leder, et al. (1997) noted no significant difference in comfort levels when topical anesthetics or vasoconstrictors were applied, versus a placebo or nothing at all (3).
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When is FEES contraindicated?
FEES is not recommended on patients with bilateral nasal obstructions; facial, maxillary, or nasal fractures; or with history of severe epistaxis (nose bleeds).
What if the patient is unable to sit upright?
No problem. FEES can be performed in any position the patient is accustomed to eating.
Can FEES be used to detect reflux?
Evidence of reflux can be observed during FEES because reflux-related changes (redness, swelling, etc.) can be directly visualized during FEES. Reflux can be graded using the Reflux Finding Scale.
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When findings are consistent with esophageal disorders, appropriate referral is made to Gastroenterology. When abnormal laryngeal findings are observed, referral is made to ENT. In this way, FEES can guide the direction of the patient’s clinical management.
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Is FEES safe to perform during COVID-19?
Yes. Currently, evidence is insufficient to fully determine the risk of aerosol generation during procedures such as FEES. ASHA recommends performing procedures that present a higher infection risk with additional caution and only with use of appropriate PPE recommended by the CDC (4).
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The Center for Medicare & Medicaid Services (CMS) revised guidance does not recommend delaying endoscopic procedures (5). Instead, CMS encourages risk assessment with consideration to conserve critical resources (i.e., PPE and ventilators) and limit the risk of exposure of patients and staff to the coronavirus. The Center for Disease Control and Prevention (CDC) has released a similar assessment protocol (6).
As always, we utilize a very strict infection control protocol. Additional steps have been implemented, as recommended by the CDC. Universal precautions, including utilization of PPE, are being used with all patients as indicated by the facility’s infectious disease team.