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Related Experiment Video

Updated: Feb 17, 2026

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
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Postswallow voice modification: compatibility with videofluoroscopy findings.

Karoline Weber Dos Santos1, Betina Scheeren2, Antônio Carlos Maciel2

  • 1Grupo Hospitalar Conceição - Porto Alegre (RS), Brasil.

Codas
|December 7, 2017
PubMed
Summary
This summary is machine-generated.

Voice changes after swallowing correlate with videofluoroscopy findings in patients with oropharyngeal dysphagia. This study confirms the utility of voice analysis alongside videofluoroscopic examination data.

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Area of Science:

  • Otolaryngology
  • Speech-Language Pathology
  • Radiology

Background:

  • Oropharyngeal dysphagia affects swallowing and voice.
  • Videofluoroscopy is a standard tool for dysphagia assessment.
  • Voice analysis may offer complementary diagnostic information.

Purpose of the Study:

  • To determine if voice modifications post-swallowing correlate with videofluoroscopy data.
  • To assess the diagnostic value of voice parameters in oropharyngeal dysphagia.

Main Methods:

  • 27 patients with oropharyngeal dysphagia were studied.
  • Sustained phonation (/a/) was recorded before and after swallowing during videofluoroscopy.
  • Voice was evaluated using the GRBAS scale and wet voice parameter; videofluoroscopy assessed food stasis, laryngeal penetration, and aspiration.

Main Results:

  • Voice analysis revealed decreased dysphonia and asthenia, and increased strain post-swallowing.
  • The wet voice parameter showed no significant change.
  • Voice parameter modifications demonstrated good sensitivity and specificity for detecting laryngeal penetration and tracheal aspiration.

Conclusions:

  • GRBAS scale parameter modifications post-swallowing align well with videofluoroscopy findings.
  • Voice analysis offers a viable adjunct to videofluoroscopy for oropharyngeal dysphagia assessment.