Clinical Study of Post-Laryngitis Functional Dysphonia

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Key Points

The aim is to examine the clinical characteristics and treatment effects of functional dysphonia that developed post-laryngitis.
Conducted a clinical evaluation of 18 cases of functional dysphonia diagnosed post-laryngitis from January 2021 to December 2023.
Employed direct training using semi-occluded vocal tract exercise (SOVTE) following medical assessment and permission for voice use.
Evaluated treatment effects using Voice Handicap Index-10, maximum phonation time, GRBAS scale, and acoustic analysis with statistical comparisons for 9 cases.
Statistically significant improvements were observed in Voice Handicap Index-10 and GRBAS scale elements: G, B, and A.
Acoustic analysis showed significant reduction in Jitter scores post-treatment.
The findings suggest prolonged voice restriction after acute laryngitis may trigger functional dysphonia, indicating the need for timely voice resumption guidance.

Clinical study examines voice therapy's effect on functional dysphonia after laryngitis, highlighting timely voice resumption's importance.

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杉本美里 et al. (2026) studied this question.

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