A Study of Negative Pressure Suction to Reduce Aspiration (inhaling food into lungs) Oropharyngeal Dysphagia (swallowing disorder)

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"An ear nose and throat study for people with stomach tubes"
Age: 18 years or older
Healthy Volunteers: No
Keywords: Swallow, Aspiration, Chocking
Type: Device study
10 Participants
We invite you to take part in a research study because you have difficulty swallowing all food consistencies. You also use a stomach tube for feeding and all medical and surgical treatments did not fix your problem.
This study requires

This study will use suction in the back of the throat during a Videofluoroscopic study. We hope it will reduce choking in patients who have difficulty swallowing.

A videofluoroscopic study is a dynamic swallow study performed as part of your routine care. During this study, you will be asked to swallow barium-coated foods of different volumes and consistencies. Barium will allow the food to show better on X-rays. Your doctor can then see changes in the shape of your tongue, back of your throat and upper esophagus. It helps visualize the muscular activity during swallowing.

Who can participate

Inclusion criteria:

  • Patients with videofluoroscopic evidence of aspiration with Rosenbek Penetration Aspiration Scale (PAS) greater than 5 for all tested food consistencies.
  • Gastrostomy tube dependence.
  • Exhaustion of conventional treatment options (physical, medical, and surgical therapies).

Exclusion criteria:

  • Complete PES stricture
  • Inability to follow commands
  • Current malignant disease
  • No gastrostomy tube present
  • Less than two years of cancer-free survival (if applicable)
  • Vulnerable populations: Adults unable to consent, Pregnant women, and Prisoners
Benefits and risks of participating

We cannot promise any benefits to you as a result of taking part in this research study.


The study doctor will discuss the risks associated with taking part in this research study.
You will not be paid to take part in this research study.
Study duration and period
We expect that being in this research will add approximately an additional 10 minutes during the course of a routine videofluoroscopic swallowing study.
UC Davis Medical Center
2315 Stockton Boulevard
Sacramento, CA 95817
Research Topic
  • Oropharyngeal Dysphagia

Have any questions or want to learn more? Leave your contact details below and the research team will reach out to you.


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