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Updated: Jan 5, 2026
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Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
Published on: March 1, 2015
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Capturing infant swallow impairment on videofluoroscopy: timing matters.
Katlyn Elizabeth McGrattan1,2, Heather C McGhee3,4, Keeley L McKelvey3,4
1Department of Speech-Language and Hearing Sciences, University of Minnesota, 164 Pillsbury Drive SE, Minneapolis, MN, 55455, USA. kmcgratt@umn.edu.
Pediatric Radiology
|October 26, 2019
Summary
Infant swallowing function and airway protection decline during bottle-feeds. Videofluoroscopic swallow studies (VFSSs) must assess swallows throughout the entire feed to accurately diagnose infant dysphagia.
Area of Science:
- Pediatric Medicine
- Speech-Language Pathology
- Diagnostic Imaging
Background:
- Infant videofluoroscopic swallow studies (VFSSs) assess swallowing deficits through limited fluoroscopic views.
- Airway protection is known to degrade during bottle-feeds, but timing data is scarce, hindering protocol development.
Purpose of the Study:
- To evaluate the stability of swallow physiology and airway protection at standardized timepoints during infant VFSS.
- To determine if swallow function changes significantly throughout a bottle-feed in infants.
Main Methods:
- Thirty bottle-fed infants with dysphagia underwent VFSS.
- Swallows were visualized at 0:00, 0:30, 1:30, and 2:30 minutes:seconds.
- Key physiological components and airway protection (penetration, aspiration) were assessed.
Main Results:
- All swallow physiology components changed significantly throughout the VFSS (P≤0.0005).
- Findings included increased sucks per swallow, incomplete bolus hold, and delayed swallow initiation.
- Increased bolus airway entry (penetration/aspiration) was observed.
Conclusions:
- Infant swallow physiology and airway protection degrade during bottle-feeds.
- Limiting VFSS to initial swallows reduces diagnostic validity.
- Evidence-based protocols are crucial for accurate infant dysphagia diagnosis and treatment.
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