Abstract
Purpose
This scoping review aims to synthesize all of the currently available information on how xerostomia correlates with vocal function and the mechanisms that underpin it.
Methods
Our scoping review used PubMed, Scopus, Embase, and Web of Science databases to review articles published between January 1999 and July 2022 in accordance with the PRISMA-ScR guidelines. In addition to the academic databases, we also conducted a manual search of Google Scholar. Further investigation was conducted on studies that examined the relationship between xerostomia and vocal function.
Results
Of the 682 initially identified articles, 21 met our inclusion criteria. Among the included studies, two articles (n = 2) revealed the mechanistic relationship between xerostomia and vocal function. Most studies (n = 12) focused on xerostomia secondary to other underlying conditions or treatments, among which radiotherapy and Sjögren’s syndrome were commonly investigated. Seven studies (n = 7) provided details about common vocal parameters measured in studies of xerostomia and the voice.
Conclusion
The literature currently lacks publications regarding the relationship between xerostomia and vocal function. Most of the studies included in this review were about xerostomia secondary to other conditions or medical treatments. Therefore, the impacts on the voice that were observed were very multifaceted and the role of xerostomia alone in phonation could not be ascertained. Nevertheless, it is clear that dryness in the mouth plays some role in vocal function and further research should focus on clarifying and finding the underlying mechanism behind this relationship by incorporating high-speed imaging and cepstral peak prominence analyses.
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Acknowledgements
MAS is a recipient of the DenburTech, New Jersey Health Foundation, and TechAdvance Awards. This publication is dedicated to the memory of Dr. H. Afsar Lajevardi [35], a legendary pediatrician (1953–2015) who passed. We will never forget Dr. H Afsar Lajevardi's kindness and support. The views expressed in this paper are those of the authors and do not necessarily reflect the views or policies of the affiliated organizations. The authors hereby announce that they have active cooperation in this scientific study and preparation of the present manuscript. The authors confirm that they have no financial involvement with any commercial company or organization with direct financial interest regarding the materials used in this study.
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Saghiri, M.A., Vakhnovetsky, A. & Vakhnovetsky, J. Scoping review of the relationship between xerostomia and voice quality. Eur Arch Otorhinolaryngol 280, 3087–3095 (2023). https://doi.org/10.1007/s00405-023-07941-x
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DOI: https://doi.org/10.1007/s00405-023-07941-x