Improvement in Acoustic Voice Characteristics in Functional Dysphonia After Therapy

Functional Voice Disorder Clinical Trial

Official title: Which Instrumental Acoustic Voice Parameters Indicate Vocal Improvement After Voice Therapy in Patients With Functional Dysphonia

Status Completed

Clinical Trial Summary

In a retrospective analysis of already existing clinical assessment data from patients with functional voice disorders the following aspects will be sampled, encoded and analysed: Outcomes pre and post treatment of

1. subjective voice symptoms measured by Voice Handicap Index (VHI-9i),

2. perceptual voice symptoms according to Grading-Roughness-Breathiness-Asthenia-Strain Scale (GRBAS Scale),

3. instrumental acoustic analysis parameters Jitter (%), speaking voice profile: mean and range of speaking pitch and intensity, max. intensity and mean pitch of calling voice, singing voice: min./max. and range of pitch and intensity, maximum phonation time, Dysphonia Severity Index (DSI).

Clinical Trial Description

n/a

Study Design

Observational Model: Cohort, Time Perspective: Retrospective

Related Conditions & MeSH terms

• Functional Voice Disorder
• Voice Disorders

• NCT number: NCT02518425
• Study type: Observational
• Source: University of Zurich
• Status: Completed
• Phase: N/A
• Start date: April 2015
• Completion date: December 2015