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Peak flow and voice pathology.

P S Phillips1, S P Hirani, R Epstein

  • 1Royal National Throat Nose and Ear Hospital/Institute of Laryngology and Otology, Bromley, Kent BR2 9SB, UK. seamusphillips@hotmail.com

Journal of Voice : Official Journal of the Voice Foundation
|May 13, 2008
PubMed
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This study found a small link between voice problems and lung function (peak flow) in some patients. Peak flow measurement may benefit those with severe voice handicap.

Area of Science:

  • Otolaryngology
  • Pulmonology
  • Speech-Language Pathology

Background:

  • Voice quality is influenced by lung function.
  • Understanding the relationship between respiratory capacity and voice disorders is crucial for diagnosis and treatment.

Purpose of the Study:

  • To investigate the correlation between subjective voice pathology and lung function (peak expiratory flow rate).
  • To assess if peak flow measurement is a relevant diagnostic tool for patients with voice problems.

Main Methods:

  • Prospective, multigroup study design.
  • Inclusion of three patient groups: new voice pathology patients, general Ear, Nose, and Throat (ENT) patients, and asthmatics.
  • Measurement of peak expiratory flow rate and Voice Handicap Index (VHI) in all participants.

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Main Results:

  • A small, statistically significant negative correlation was observed between VHI and percentage of expected peak flow in voice pathology patients (r=-0.304, P=0.016).
  • No significant correlation was found between VHI and peak flow in the general ENT or asthmatic groups.
  • These findings suggest peak flow is not a universal indicator for all voice clinic patients.

Conclusions:

  • Routine peak flow measurement is not recommended for all voice clinic patients.
  • Peak flow assessment and optimization may be beneficial for individuals with the most severe voice handicap (VHI).
  • Further research could explore the specific mechanisms linking lung function and voice impairment in specific patient populations.