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Laryngeal trauma vs length of intubation

  • T. H. J. Lesser (a1) and P. J. A Lesser (a2)


The frequency histograms of six patients' laryngographs were studied pre- and post-endotracheal intubation. The changes were correlated with the length of intubation. The post-operative hoarse voice was seen as an increase in the spread of the lower frequencies, and an increase in the fundamental frequency. The latter change was thought to be a subconscious compensation for the hoarseness. The increased lower frequency spread as measured by standard deviation was directly proportional to the length of intubation.


Corresponding author

T. H. J. Lesser, Department of Otolaryngology, University Hospital of Wales, Health Park, Cardiff CF4 4XW.


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Fourcin, A. J. (1981) Laryngographic assessment of phonatory function. In Ludlow, C. L. (ed.), Conference on assessment of vocal pathology. Maryland, ASHA. Reports, 11: 116127.
Gleeson, M. J., and Fourcin, A. J. (1983) Clinical analysis of Laryngeal Trauma Secondary to Intubation. Journal of the Royal Society of Medicine, 76: 928932.
Lesser, T. H. J., Williams, R. G., and Hoddinott, C. (1986) Laryngographic changes following endotracheal intubation in adults. British Journal of Disorders of Communication, 21: 239244.
Wechsler, E. (1977) Laryngographic study of voice disorders. British Journal of Disorders of Communication, 12: 922.
Wechsler, E., Neil, W. F., and Fourcin, A. J.(1976) Laryngographic analysis of pathological vocal fold fibration. Proceeding of the Institute of Acoustics, 2-16-1 to 2-16-4. Edinburgh.
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The Journal of Laryngology & Otology
  • ISSN: 0022-2151
  • EISSN: 1748-5460
  • URL: /core/journals/journal-of-laryngology-and-otology
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