Correlation between laryngopharyngeal reflux fibro-laryngoscopy signs and laryngopharyngeal reflux symptoms, vocal tract discomfort and perceptual-auditory roughness in singers.
The laryngopharyngeal reflux (LPR) is the retrograde movement of gastric contents into the larynx, pharynx, and upper aerodigestive tract. It is associated with voice disorders and interferes with the singer's vocal production quality. This study aimed to determine the correlation...
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| Autores principales: | , , , , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Universidad Nacional Córdoba. Facultad de Ciencias Médicas. Secretaria de Ciencia y Tecnología
2019
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| Materias: | |
| Acceso en línea: | https://revistas.unc.edu.ar/index.php/med/article/view/25803 |
| Aporte de: |
| Sumario: | The laryngopharyngeal reflux (LPR) is the retrograde movement of gastric contents into the larynx, pharynx, and upper aerodigestive tract. It is associated with voice disorders and interferes with the singer's vocal production quality.
This study aimed to determine the correlation between fibro-laryngoscopic signs of LPR with self-reports of LPR symptoms, the discomfort of the vocal tract and perceptual-auditory vocal quality in singers, Córdoba, 2019.
Descriptive, cross-sectional, correlational study. 38 singers of both genres with a mean age of 24.4, volunteer of 2019 World Voice Day campaign at Hospital Nacional de Clínicas, were assessed. All participants signed the informed consent form and completed the self-assessments: Vocal Tract Discomfort (VTD) and LPR Symptom Index (RSI). Reflux Finding Score (RFS) was used to determine signs of LPR using fibro-laryngoscopy. Vocal quality was determined using the R parameter of the GRBAS perceptual-auditory scale. Statistical analysis was performed in Infostat 2017.
The prevalence of abnormal RFS score was 81.58% and of the RSI, 36.84%. The total score average of VTDs was 16.4 (maximum score: 96). Significant correlation was found between total score of RSI and VTD self-assessments scales with PC = 0.59 (p = 0.0001); and non-significant negative correlation between total scores of RFS and VTD with PC = -0.15 (p = 0.35) and total scores of RFS and RSI with PC = -0.14 (p = 0.4). No statistically significant correlation was found between specific symptoms of self-reports with RFS. Statistically significant correlation was observed between R and total RFS with PC = 0.51 (p = 0.003) and non-significant positive correlation between self-perceived hoarseness and R parameter with PC = 0.15 (p = 0.36).
No correlation was found between self-perceived symptoms and perceptual-auditory and fibro-laryngoscopic signs. The results reveal the diagnostic precision of the perceptual-auditory and fibro-laryngoscopic assessments above the self-perception predictive value of the sample subjects. According to this discrepancy and due to the risk of late detection of possible vocal alterations in voice professionals, the periodic otolaryngological and speech and language therapy controls are justified, even at the absence of symptoms associated with LPR.
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