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WithdrawnNCT00584545Updated Apr 11, 2023

Simultaneous Fluoroscopic and Manometric Measures of the Oropharyngeal Phase of Deglutition

An observational study in Dysphagia, sponsored by University of California, Davis. Withdrawn at 1 site in United States. Open to participants aged 18 Years to 99 Years. Per ClinicalTrials.gov, last updated 2023-04-11.

Sponsored by University of California, Davis · Observational

Why this study was withdrawn
Study never got started.
Study type
Observational
Model
Case-only
Time perspective
Retrospective
Enrollment
0
Ages
18 Years to 99 Years
Sex
All
01

Study summary

To validate the pharyngeal constriction ration, a surrogate measure of pharyngeal strength on fluoroscopy by comparing it with simultaneous pharyngeal manometry.

Read the detailed description

The specific aim of this study is to validate the pharyngeal constriction ration, a surrogate measure of pharyngeal strength on fluoroscopy by comparing it with simultaneous pharyngeal manometry. Combined videofluoroscopic swallowing studies with pharyngeal manometry are commonly used in the evaluation of dysphagia. However, no published study has compared the results of simultaneous pharyngeal manometry with objective timing and displacement measures on videofluoroscopy. These objective measures, such as the pharyngeal constriction ratio, were developed here at UCD and are not yet routinely used by other practitioners. A secondary aim of this study will be to corroborate recent data in the literature suggesting that the presence of feeding tube through the upper esophageal sphincter does not affect the oropharyngeal phase of deglutition. This topic is currently under hot debate in the speech language pathology realm and has important implications for the evaluation of hospitalized patients with dysphagia.

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Conditions studied

  • Dysphagia

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Keywords

  • pharyngeal manometry
  • videofluoroscopy
03

In context

Deglutition Disorders

710 studies on the registry are indexed under Deglutition Disorders; 219 are open to participants now.

Browse Deglutition Disorders studies →

Lead sponsor

University of California, Davis is the lead sponsor of 798 studies on the registry; 146 are open to participants now.

Of its 65 completed or terminated interventional studies of FDA-regulated products, 43 (66%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 99 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

UCDMC otolaryngology primary clinic

Inclusion criteria

  • undergone pharyngeal manometry with simultaneous videofluoroscopy during the period 1/1/06 to 4/30/07

Exclusion criteria

Exclusion Criteria:

  • those who do not meet the inclusion criteria; pregnancy
05

Study design

Observational model
Case-only
Time perspective
Retrospective
Enrollment
0 participants (actual)
06

Study locations

1 site
  • University of California Davis Medical Center
    Sacramento, California 95817, United States
07

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 11, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00584545
Lead sponsor
University of California, Davis
Responsible party
Sponsor
First posted
Jan 2, 2008
Start date
Jun 2007
Primary completion
Jun 2008
Completion
Jun 2008
Last update
Apr 11, 2023

Study contacts

Peter Belafsky, MD, PhD
principal investigator · University of California, Davis

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Apr 2023. You cannot join it, but the record below documents what was studied.

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