Long-Term Outcome of Hyperfunctional Voice Disorders Based on a Multiparameter Approach |
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Authors: | KM Van Lierde S Claeys M De Bodt P van Cauwenberge |
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Institution: | Department of Otorhinolaryngology, University Hospital Gent, Gent, the Netherlands. kristiane.vanlierde@ugent.be |
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Abstract: | SUMMARY: The purpose of this study is to determine the long-term voice outcome (6.1 years after a well-defined voice treatment program) of hyperfunctional voice disorders in 27 subjects. All patients showed a muscle tension pattern type I (MTP I). Perceptual ratings, aerodynamic and acoustical analyses, Voice Handicap Index (VHI) value, and a determination of the Dysphonia Severity Index (DSI) were performed. The laryngovideostroboscopic images indicated that 51% of the subjects still show pathological laryngological findings. The negative evolution of the DSI from -1 to -3.2 is in agreement with this finding. Analysis of the components of the DSI shows that the main responsible variable for this negative change is the lowest intensity (I-low) that increased with 8.1 dB, indicating that subjects generally speak too loud, which is a typical problem for vocal hyperfunction. The VHI-score indicates an unimportant psychosocial impact of the voice disorder. The more objective and laryngostroboscopic findings indicate a chronic situation for a substantial part of the subjects and even a worse situation for some of them. Whether the long-term voice outcome results can be changed with the insertion of several follow-up voice rehabilitation sessions over the years remains unanswered and is a subject for further research. |
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Keywords: | Long-term voice outcome Hyperfunctional voice disorders Muscle Tension Pattern Dysphonia Severity Index Voice therapy |
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