Document Detail

Perceptual characteristics of adductor spasmodic dysphonia.
MedLine Citation:
PMID:  10961807     Owner:  NLM     Status:  MEDLINE    
The evaluation of perceptual symptoms is one of the mainstays in the diagnostic workup of adductor spasmodic dysphonia (ADSD). The most widely used perceptual rating system is the GRBAS scale. However, with this system, not all audible features of ADSD can be described. Therefore, we extended the GRBAS system by 6 parameters. The aim of this study was assessment of the perceptual characteristics of ADSD with the "extended" GRBAS system and evaluation of its reproducibility. Seventy-seven patients were scored independently by 3 experienced observers quantifying the voice sound profile. Cluster analysis distinguished 4 different voice types. Intraobserver and interobserver agreement among 8 less-experienced observers appeared fair-to-good. This study demonstrates that the "extended" GRBAS system is suitable for perceptual characterization of ADSD. On the grounds of the fair-to-good interobserver variability, it is appropriate for clinical use. Moreover, 4 different voice clusters of ADSD were identified, with significant differences in voice and demographic parameters.
T P Langeveld; H A Drost; J H Frijns; A H Zwinderman; R J Baatenburg de Jong
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Annals of otology, rhinology, and laryngology     Volume:  109     ISSN:  0003-4894     ISO Abbreviation:  Ann. Otol. Rhinol. Laryngol.     Publication Date:  2000 Aug 
Date Detail:
Created Date:  2000-09-07     Completed Date:  2000-09-07     Revised Date:  2006-05-15    
Medline Journal Info:
Nlm Unique ID:  0407300     Medline TA:  Ann Otol Rhinol Laryngol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  741-8     Citation Subset:  AIM; IM    
Department of Otorhinolaryngology-Head and Neck Surgery, Leiden University Medical Center, The Netherlands.
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MeSH Terms
Aged, 80 and over
Cluster Analysis
Middle Aged
Observer Variation
Otolaryngology / methods
Pain Measurement
Reproducibility of Results
Severity of Illness Index
Speech Perception*
Voice Disorders / classification,  physiopathology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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