Abstract
Objectives
The objective is to study the usefulness of acoustic measurements as therapeutic outcomes for patients with dysphonia related to laryngopharyngeal reflux (LPR).
Methods
From September 2019 to April 2021, 120 patients with LPR at the hypopharyngeal-esophageal multichannel intraluminal impedance pH-monitoring (HEMII-pH) were prospectively recruited from three University Hospitals. They were divided in two groups regarding the presence of dysphonia. The treatment consisted of a combination of diet, proton-pump inhibitors, magaldrate and alginate for 3–6 months. The following clinical and acoustic evaluations were studied regarding groups at baseline, 3- and 6-month posttreatment: reflux symptom score (RSS), reflux sign assessment (RSA), percent jitter, percent shimmer and noise-to-harmonic ratio (NHR).
Results
A total of 109 patients completed the evaluations, accounting for 49 dysphonic and 60 non-dysphonic individuals. HEMII-pH, gastrointestinal endoscopy, baseline clinical and acoustic features were comparable between groups. RSS and RSA significantly improved from pre- to 3-month posttreatment in both groups. Jitter, Shimmer and NHR significantly improved from pre- to 3-month posttreatment in dysphonic patients, without additional 3- to 6-month posttreatment changes. Acoustic parameters did not change throughout treatment in patients without dysphonia.
Conclusion
Acoustic measurements may be an interesting indicator of treatment in LPR patients who reported dysphonia. In this group of individuals, the evolution of acoustic parameters was consistent with the evolution of symptoms and findings.
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Vesale Grant & IRIS-Recherche Grant (Foundation Roi Baudouin).
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This research has been subsidized by the Vesale Grant and the IRIS-Recherche Grant.
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Lechien, J.R., Saussez, S., Nowak, G. et al. Acoustic measurements are useful therapeutic indicators of patients with dysphonia-related to reflux. Eur Arch Otorhinolaryngol 279, 3543–3549 (2022). https://doi.org/10.1007/s00405-022-07283-0
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DOI: https://doi.org/10.1007/s00405-022-07283-0