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Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
Published on: February 9, 2022
Effectiveness of an Eclectic Voice Therapy Approach and Vocal Function Exercise (VFE)-Normative Range Cutoff Value
Shenbagavalli Mahalingam1, Prakash Boominathan2, Ravikumar Arunachalam3
1Oklahoma State University, Oklahoma.
Summary
The Comprehensive Voice Habilitation Program (CVHP) demonstrated significant benefits for hyperfunctional voice disorders, with more participants achieving complete lesion recovery and improved vocal parameters compared to Vocal Function Exercise (VFE). Long-term outcomes warrant further investigation.
Area of Science:
- Speech and Hearing Sciences
- Otolaryngology
- Voice Disorders
Background:
- Hyperfunctional voice disorders present a significant challenge in voice rehabilitation.
- The Comprehensive Voice Habilitation Program (CVHP) and Vocal Function Exercise (VFE) are established voice therapy approaches.
- Comparing multidimensional outcomes of these therapies is crucial for evidence-based practice.
Purpose of the Study:
- To compare the multidimensional outcomes of the Comprehensive Voice Habilitation Program (CVHP) and Vocal Function Exercise (VFE) for hyperfunctional voice disorders.
- To evaluate treatment efficacy using normative range cutoff values for various voice parameters.
- To assess the impact of both therapies on acoustic, perceptual, and self-reported vocal measures.
Main Methods:
- Secondary analysis of a randomized controlled trial involving 60 participants with hyperfunctional voice disorders.
- Participants were randomized into two groups: CVHP (n=30) and VFE (n=30), undergoing 6 weeks of therapy.
- Outcomes measured included videostroboscopy, acoustic analysis, perceptual assessments, and self-reported vocal symptoms, compared against normative data.
Main Results:
- A greater number of participants in the CVHP group achieved complete lesion recovery and improved acoustic measures (e.g., cepstral measures, harmonics-to-noise ratio).
- CVHP also showed statistically significant improvements in the Dysphonia Severity Index, dynamic range, frequency measures, and perceptual ratings of overall grade, asthenia, and strain.
- Significant improvements were observed in self-reported symptoms, Voice Disorder Outcome Profile (V-DOP), and specific factors of the Vocal Fatigue Index (VFI-T) in the CVHP group.
Conclusions:
- The Comprehensive Voice Habilitation Program (CVHP) is an effective treatment for hyperfunctional voice disorders.
- CVHP demonstrated superior outcomes in lesion recovery and several multidimensional voice parameters compared to VFE.
- Further research on the long-term efficacy of CVHP is recommended.
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