The Effectiveness of Voice Therapy on Voice-Related Handicap: A Network Meta-Analysis
Clinical Otolaryngology
Barsties v. Latoszek, B., Watts, C. R., et al. (2020).
Clinical Otolaryngology, 45(5), 796-804.
This meta-analysis investigates the effects of voice therapy on Voice Handicap Index-30 in adolescents and adults with non-organic or organic voice disorders.
Not stated
Database inception to 2019
Randomized controlled trials
13
<div>Findings supported stretch and flow phonation (Mean pre-post difference [MD]: -28.37) to have the largest effect on Voice Handicap Index - 30 (VHI-30) score for individuals with dysphonia. However, the following interventions were also effective in improving VHI-30 scores:</div>
<ul>
<li>resonant voice (MD= -21.84);</li>
<li>comprehensive voice rehabilitation program (MD= -22.01); and</li>
<li>vocal function exercises (MD= -13.00).</li>
</ul>
<div>Findings demonstrated the following interventions not yielding significant or clinically relevant effects on the VHI-30:</div>
<ul>
<li>respiratory muscle training;</li>
<li>lip trill;</li>
<li>water resistance therapy;</li>
<li>vocal hygiene; and</li>
<li>tube phonation in air.</li>
</ul>
