Long-term outcome of hyperfunctional voice disorders based on a multiparameter approach

Area of Science:

• Otolaryngology
• Speech-Language Pathology
• Voice Science

Background:

• Hyperfunctional voice disorders are common and can impact quality of life.
• Muscle Tension Pattern Type I (MTP I) is a frequent presentation.
• Understanding long-term voice outcomes is crucial for effective treatment planning.

Purpose of the Study:

• To assess the long-term voice outcomes of hyperfunctional voice disorders 6.1 years post-treatment.
• To evaluate persistent pathological findings and functional voice parameters.

Main Methods:

• Recruited 27 subjects with MTP I hyperfunctional voice disorders.
• Conducted perceptual, aerodynamic, and acoustical voice analyses.
• Utilized the Voice Handicap Index (VHI) and Dysphonia Severity Index (DSI).
• Performed laryngovideostroboscopy to assess laryngeal pathology.

Main Results:

• 51% of subjects exhibited persistent pathological laryngological findings.
• The Dysphonia Severity Index (DSI) showed a negative evolution (from -1 to -3.2).
• Increased lowest intensity (I-low) by 8.1 dB, indicating habitual loud speech.
• Voice Handicap Index (VHI) scores suggested minimal psychosocial impact.

Conclusions:

• A substantial portion of patients experience a chronic voice condition with persistent laryngeal abnormalities.
• Habitually loud speech, indicated by increased lowest intensity, is a key factor in negative outcomes.
• The long-term efficacy of intermittent voice rehabilitation requires further investigation.