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Effect of caffeine on the vocal folds: a pilot study

Published online by Cambridge University Press:  29 June 2007

S. Akhtar ,
G. Wood ,
J. S. Rubin ,
P. E. O'Flynn  and
P. Ratcliffe
S. Akhtar*
Affiliation:
Department of Otolaryngology/Head and Neck Surgery, Royal National Throat, Nose and Ear Hospital, London, UK.
G. Wood
Affiliation:
Department of Speech and Language Therapy, Royal National Throat, Nose and Ear Hospital, London, UK.
J. S. Rubin
Affiliation:
Department of Otolaryngology/Head and Neck Surgery, Royal National Throat, Nose and Ear Hospital, London, UK.
P. E. O'Flynn
Affiliation:
Department of Otolaryngology/Head and Neck Surgery, Royal National Throat, Nose and Ear Hospital, London, UK.
P. Ratcliffe
Affiliation:
Department of Speech and Language Therapy, Royal National Throat, Nose and Ear Hospital, London, UK.
*
Address for correspondence: Ms Shadaba Akhtar, F.R.C.S., E.N.T. SpR, Royal National Throat Nose and Ear Hospital, 330–331 Gray's Inn Road, London WC1X 8DA.
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Abstract

Caffeine is considered to be a dehydrating agent with detrimental effects on the quality of voice of persons ingesting it. This has led medical personnel dealing with voice disorders, especially in the case of professional voice users, to give advice against the use of caffeine. Yet this is an anecdotal truth as an extensive Medline literature search did not reveal any scientific evidence of caffeine being proven to have adverse effects on the vocal folds. We, therefore, initiated this pilot study to ascertain the connection between caffeine and voice quality on a laboratory basis. Two hundred and fifty mg of caffeine were provided to eight volunteers in tablet form, and blood levels along with laryngograph readings were recorded to document the changes produced. Analysing the irregularities of frequencies in a) free speech b) a reading passage and c) singing ‘Happy Birthday’, substantial changes were seen to authenticate the fact that caffeine does produce alterations in voice quality but these alterations have considerable intrasubject variability. A full study with wider parameters is to be performed on this subject as we consider it to be of importance in the management of voice disorders.

Keywords

CaffeineDehydrationVocal fold
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 113 , Issue 4 , April 1999 , pp. 341 - 345
Copyright
Copyright © JLO (1984) Limited 1999

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References

Barry, W. J., Goldsmith, M., Fourcin, A. J., Fuller, H. (1991). Stability of voice frequency measures in speech. Twelfth International Congress in Phonetic Science 2: 38–41.Google Scholar
Bastian, R. W., Lawrence, V. L. (1984) Hoarseness in singers. National Association of Teachers of Singing Bulletin 40(3): 26–27.Google Scholar
Benninger, M. S., Jacobson, B. H., Johnson, A. F. (1993) In Vocal Arts Medicine. The care and prevention of professional voice disorders. 1st Edition, Thieme Medical Publishers, New York, pp 295–300.Google Scholar
Bough, D. Jr, Heur, R. J., Sataloff, R. T., Hills, J. R., Cater, J. R. (1996) Intra-subject variability of objective voice measures. Journal of Voice 10(2): 166–174.CrossRefGoogle Scholar
Bradley, M. (1980) Prevention and correction of vocal disorders in singers. National Association of Teachers of Singing Bulletin 36(5): 38–41.Google Scholar
Carlson, E. (1995) Electrolaryngography in the assessment and treatment of incomplete mutation (puberphonia) in adults. European Journal of Communication 30: 140–148.Google ScholarPubMed
Hardman, J. G., Limbird, L. E., Molinoff, P. B., Ruddon, R. W., Gilman, A. G. (eds.) (1995) Goodman and Gilman's: The Pharmacological Basis of Therapeutics, 9th Edition. McGraw Hill Co., New York, pp 670–680.Google Scholar
Gillies, H. C., Rogers, H. J., Spector, R. G., Trounce, J. R. (1986). A Textbook of Clinical Pharmacology. 2nd Edition. Hodder and Stoughton, London. pp 860–861.Google Scholar
Lawrence, V. L. (1981) Handy household hints: to sing or not to sing. National Association of Teachers of Singing Bulletin 37(3): 23–25.Google Scholar
PCLX Laryngograph Manual (1992) page 2.39.Google Scholar
Sataloff, R. T. (1987) The professional voice: part I. Anatomy, function, and general health. Journal of Voice 1(1): 92–104.CrossRefGoogle Scholar
Titze, I. R., Talkin, D. T. (1979) A theoretical study of the effects of various laryngeal configurations on the acoustics of phonation. Journal of the Acoustic Society of America 66(1): 60–74.CrossRefGoogle ScholarPubMed
Verdolini, K. (1988) Practice good vocal health and prevent those voice disorders. Choristers Guild Letters 2: 40–44.Google Scholar
Verdolini-Marston, K., Sandage, M., Titze, I. R. (1994a) Effect of hydration treatments on laryngeal nodules and polyps and related voice measures. Journal of Voice 8: 30–47.CrossRefGoogle ScholarPubMed
Verdolini-Marston, K., Titze, I. R., Fennell, A. (1994b) Dependence of Phonatory effort on hydration level. Journal of Speech and Hearing Research 37: 1001–1007.CrossRefGoogle Scholar