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Updated: Sep 29, 2025
Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
Published on: March 1, 2015
Developing a Protocol for Quantitative Analysis of Liquid Swallowing in Children
Anna Miles1, Isuru Dharmarathna1,2, Laura Fuller1
1Speech Science, School of Psychology, Faculty of Science, The University of Auckland, New Zealand.
Insights
A new videofluoroscopic swallow study (VFSS) protocol standardizes objective measures for pediatric dysphagia assessment. This protocol ensures reliable and efficient analysis of swallow biomechanics in children.
Area of Science:
- Pediatric Swallowing Disorders
- Clinical Measurement Science
- Biomechanical Analysis
Background:
- Videofluoroscopic swallow studies (VFSSs) offer objective quantification of swallow biomechanics.
- Existing VFSS measures are numerous, lacking standardization for pediatric populations.
- A need exists for an efficient, clinically relevant pediatric VFSS protocol.
Purpose of the Study:
- To establish a standardized protocol for quantitative VFSS analysis in children.
- To identify vital, time-efficient, and clinically relevant measures for pediatric VFSS.
- To develop a protocol suitable for diverse pediatric age groups.
Main Methods:
- Systematic literature review to identify 22 quantitative and 8 descriptive measures.
- Development of a pediatric VFSS database from 553 children.
- Evaluation of measures for rater reliability and internal consistency using Cronbach's alpha.
Main Results:
- 17 measures met acceptable interrater and intrarater reliability.
- Six measures were removed due to redundancy in internal consistency testing.
- A final protocol included 6 objective quantitative and 3 descriptive measures, with age-specific adaptations for infants and older children.
Conclusions:
- A standardized, quantitative VFSS protocol for children (≤9 months and >9 months) has been developed.
- Consistent VFSS administration and reporting facilitate longitudinal and cross-group assessment.
- Future research should explore clinical application for individualized treatment plans in pediatric dysphagia.
Purpose:
Objective measures in videofluoroscopic swallow studies (VFSSs) can quantify swallow biomechanics. There are a wide array of validated measures studied in infants, children, and adults. There is a need for a pediatric VFSS protocol that consists of a small number of vital, time efficient, and clinically relevant measures. In this study, we aimed to establish a standard protocol for quantitative VFSS analysis in children.
Method:
Protocol development began with a systematic literature review, which identified 22 quantitative and eight descriptive measures available in the literature. A pediatric VFSS database of 553 children was collected using a standardized VFSS protocol. Studies were evaluated using the 30 previously reported measures covering displacement and timing parameters as well as penetration-aspiration and residue. Measures were tested for rater reliability and internal consistency. Measures meeting acceptable values for protocol inclusion were included in the final protocol (Cronbach's alpha > .53).
Results:
Interrater and intrarater reliability of 17 measures met acceptable reliability levels. During internal consistency testing, we removed six further measures based on Cronbach's alpha levels indicating that two or more measures were equivalent in measuring the same aspect of swallow biomechanics in children. A VFSS protocol of reliable, valid, and obtainable objective quantitative (n = 6) and descriptive measures (n = 3) with separate protocols for young infants (≤ 9 months) and older children was established.
Conclusions:
A standardized quantitative VFSS protocol for children has been developed to suit two age groups (≤ 9 and > 9 months old). Consistent VFSS administration and reporting support assessment over time and across disease groups. Future research should focus on how this information can be used by clinicians to produce individualized treatment plans for children with swallowing impairment.
