Trials / Completed
CompletedNCT02518425
Improvement in Acoustic Voice Characteristics in Functional Dysphonia After Therapy
Which Instrumental Acoustic Voice Parameters Indicate Vocal Improvement After Voice Therapy in Patients With Functional Dysphonia
- Status
- Completed
- Phase
- —
- Study type
- Observational
- Enrollment
- 50 (actual)
- Sponsor
- University of Zurich · Academic / Other
- Sex
- All
- Age
- 20 Years – 70 Years
- Healthy volunteers
- Not accepted
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).
Conditions
Timeline
- Start date
- 2015-04-01
- Primary completion
- 2015-12-01
- Completion
- 2015-12-01
- First posted
- 2015-08-07
- Last updated
- 2016-05-16
Locations
1 site across 1 country: Switzerland
Source: ClinicalTrials.gov record NCT02518425. Inclusion in this directory is not an endorsement.