Which Instrumental Acoustic Voice Parameters Indicate Vocal Improvement After Voice Therapy in Patients With Functional Dysphonia
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 50
- 试验地点
- 1
- 主要终点
- Instrumental acoustic voice parameters
研究概览
简要总结
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
- subjective voice symptoms measured by Voice Handicap Index (VHI-9i),
- perceptual voice symptoms according to Grading-Roughness-Breathiness-Asthenia-Strain Scale (GRBAS Scale),
- 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).
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 20 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •informed consent; patients 20 to 70 years with functional voice disorder; -diagnostics and voice therapy at University Hospital Zurich;
- •full pre- and post treatment voice assessment (videostroboscopy, subjective self- assessment, instrumental acoustic and perceptual analysis).
排除标准
- •known neurologic and psychiatric disease,
- •hearing disorder,
- •surgery of the head and neck area or intubation (for any reason) in last 18 months.
结局指标
主要结局
Instrumental acoustic voice parameters
时间窗: Before (initial diagnosis) and after voice therapy, expected average of 11-20 weeks after initial diagnosis)
Instrumental acoustic parameters are determined by a computer-assisted analysis of voice recordings. In the present study the following parameters are measured before and after voice therapy: Jitter % (deviation of fundamental frequency), mean and range of speaking pitch and intensity, maximum intensity and mean pitch of calling voice, minimum and max. and range of pitch and intensity of the singing voice, and the composite measure Dysphonia Severity Index (DSI).
次要结局
- Perceptual voice symptoms(Before (initial diagnosis) and after voice therapy, expected average of 11-20 weeks after initial diagnosis))
- Subjective voice symptoms(Before (initial diagnosis) and after voice therapy, expected average of 11-20 weeks after initial diagnosis))