Perceptual and acoustic evaluation of individuals with laryngopharyngeal reflux pre- and post-treatment

J Voice. 2003 Dec;17(4):557-70. doi: 10.1067/s0892-1997(03)00017-1.

Abstract

Thirteen individuals with laryngopharyngeal reflux (LPR) were studied pre- and post-treatment. The effect of treatment on perceptual ratings of voice quality and frequency and intensity measures was examined. Relationships between perceptual and acoustic parameters were assessed descriptively. Results showed a small, but significant improvement in the perception of voice quality post-treatment. No significant differences were found between pre- and post-treatment means for any of the acoustic measures except harmonics-to-noise ratio (HNR). Descriptive analyses showed some association between perceptual ratings and acoustic measures. Discussion of results focuses on severity of LPR.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Auditory Perception*
  • Female
  • Gastroesophageal Reflux / complications*
  • Gastroesophageal Reflux / therapy
  • Humans
  • Male
  • Middle Aged
  • Sound Spectrography
  • Speech Production Measurement
  • Speech Therapy*
  • Tape Recording
  • Treatment Outcome
  • Voice Disorders / etiology
  • Voice Disorders / therapy*
  • Voice Quality*