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Related Experiment Video

Updated: May 3, 2026

A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis ALS
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Construct Validity of the Amyotrophic Lateral Sclerosis Bulbar Dysfunction Index-Remote.

Timothy Pommée1,2,3, Liziane Bouvier1,2,3, Carolina Barnett-Tapia4,5

  • 1Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.

American Journal of Speech-Language Pathology
|June 3, 2025
PubMed
Summary
This summary is machine-generated.

The Amyotrophic Lateral Sclerosis Bulbar Dysfunction Index-Remote (ALSBDI-R) is a valid tool for assessing bulbar dysfunction in ALS patients remotely. It accurately correlates with other measures and distinguishes disease severity, aiding clinical use and research.

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Area of Science:

  • Neurology
  • Clinical Assessment
  • Biostatistics

Background:

  • Bulbar dysfunction is a critical component of amyotrophic lateral sclerosis (ALS) progression.
  • Remote assessment tools are increasingly important for patient monitoring in ALS.
  • The Amyotrophic Lateral Sclerosis Bulbar Dysfunction Index-Remote (ALSBDI-R) was developed for remote clinician-administered assessment.

Purpose of the Study:

  • To evaluate the construct validity of the ALSBDI-R.
  • To examine the correlation of ALSBDI-R with established clinical measures.
  • To assess the ALSBDI-R's ability to discriminate between different bulbar disease severities.

Main Methods:

  • 92 ALS patients were recruited from two multidisciplinary clinics.
  • Participants completed ALSBDI-R, ALSFRS-R, CNS-BFS, Sentence Intelligibility Test, and EAT-10.
  • Construct validity was assessed using Spearman correlations and group comparisons.

Main Results:

  • ALSBDI-R total scores showed strong correlations with ALSFRS-R bulbar subscore (r = -.85), CNS-BFS (r = .85), and EAT-10 (r = .77).
  • The ALSBDI-R effectively discriminated between asymptomatic, mild, moderate, and severe bulbar dysfunction groups.
  • These findings support the construct validity of the ALSBDI-R.

Conclusions:

  • The ALSBDI-R is a valid instrument for the remote assessment of bulbar dysfunction in ALS patients.
  • Its ability to differentiate severity levels makes it valuable for clinical practice and research.
  • The tool offers a standardized method for remote monitoring of ALS progression.