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Related Concept Videos

Larynx01:21

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A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis ALS
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Phonatory aerodynamics in connected speech.

Jackie L Gartner-Schmidt1, Ryoji Hirai2, Christina Dastolfo1

  • 1University of Pittsburgh Voice Center, Department of Otolaryngology.

The Laryngoscope
|July 23, 2015
PubMed
Summary
This summary is machine-generated.

Patients with unilateral vocal fold paralysis (UVFP) show altered aerodynamic measures. Laryngeal augmentation improves voice but does not fully restore measures to healthy control levels.

Keywords:
Outcomesaerodynamicairflowglottal incompetenceimmobilityparalysisphonatoryspeechunilateral vocal fold paralysis

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Area of Science:

  • Investigates phonatory aerodynamics in connected speech.
  • Focuses on voice disorders and treatment outcomes.

Background:

  • Unilateral vocal fold paralysis (UVFP) significantly impacts voice production.
  • Aerodynamic assessment is crucial for understanding voice function.
  • Limited data exists on aerodynamic changes in connected speech for UVFP patients.

Purpose of the Study:

  • To establish phonatory aerodynamic data for healthy controls (HCs).
  • To compare aerodynamic measures between HCs and untreated UVFP patients.
  • To evaluate the impact of laryngeal augmentation on aerodynamic measures and voice quality in UVFP patients.

Main Methods:

  • Retrospective, single-blinded study design.
  • Involved 20 healthy controls and 20 patients with UVFP.
  • Aerodynamic measures (breaths, airflow rate, durations) were recorded during connected speech (Rainbow Passage); Voice Handicap Index-10 (VHI-10) was also used.

Main Results:

  • Preoperative UVFP patients exhibited significantly increased phonatory aerodynamic measures compared to HCs.
  • Post-laryngeal augmentation, UVFP patients showed reduced breath frequency, lower airflow rates, and shorter inspiratory durations.
  • Voice Handicap Index-10 scores significantly improved after augmentation, though aerodynamic measures did not fully normalize to HC levels.

Conclusions:

  • The study presents novel aerodynamic data for UVFP patients in connected speech.
  • Laryngeal augmentation offers significant functional improvement for UVFP patients.
  • The methodology enhances aerodynamic voice assessment for clinical application in UVFP.