Change of Acoustic Parameters Before and After Treatment in Laryngopharyngeal Reflux Patients
- Authors
- Jin, Bong Joon; Lee, Yong Seop; Jeong, Seung Won; Jeong, Jin Hyeok; Lee, Seung Hwan; Tae, Kyung
- Issue Date
- May-2008
- Publisher
- LIPPINCOTT WILLIAMS & WILKINS
- Keywords
- Laryngopharyngeal reflux; acoustic parameter; jitter; shimmer
- Citation
- LARYNGOSCOPE, v.118, no.5, pp.938 - 941
- Indexed
- SCIE
SCOPUS
- Journal Title
- LARYNGOSCOPE
- Volume
- 118
- Number
- 5
- Start Page
- 938
- End Page
- 941
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/178702
- DOI
- 10.1097/MLG.0b013e3181651c3a
- ISSN
- 0023-852X
- Abstract
- Objectives: To evaluate the usefulness of acoustic parameters as an indicator of laryngopharyngeal reflux (LPR) treatment efficacy. Study Design: A prospective case series analysis. Materials and Methods: From January to September 2005, we prospectively analyzed 40 patients who were diagnosed with laryngopharyngeal reflux by 24-hour ambulatory double-probe pH monitoring. Laryngopharyngeal reflux patients were treated medically and voice analysis was conducted three times: before treatment, 1 to 2 months after treatment, and 3 to 4 months after treatment. Jitter, shimmer, and harmonic-to-noise ratio (HNR) were analyzed as the acoustic parameters. Pre- and posttreatment reflux symptom index and reflux finding score were documented. Results: Jitter, shimmer, and HNR had improved significantly at 1 to 2 months after treatment and were maintained at 3 to 4 months after treatment. Jitter was significantly correlated with reflux symptom index. Conclusion: Acoustic parameters can be used as indicators of treatment efficacy for laryngopharyngeal reflux disease.
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