Affiliation:
1. University of Washington, Seattle
2. Department of Anesthesiology, University of Washington, Seattle
Abstract
Certain acoustical consequences of endotracheal intubation were examined in 13 male cardiovascular-surgery patients. Each subject recorded three tokens of a sustained vowel 1 day before intubation, 1 day after, upon discharge, and during a follow-up visit. Eight acoustical measures were obtained from the audio-recorded vowels: (a) mean fundamental frequency (Fo), (b) Fostandard deviation, (c) Foperturbation quotient, (d) mean sound pressure level (SPL), (e) SPL standard deviation, (f) SPL perturbation quotient, (g) spectral flatness of the residue signal, and (h) coefficient of excess. Mean Fo, Fostandard deviation, mean SPL, SPL standard deviation, and coefficient of excess did not differ significantly across recording sessions, although certain predictable trends were apparent. Foperturbation quotient, SPL perturbation quotient, and spectral flatness of the residue signal varied significantly across sessions, implying that these acoustical measures may be useful in the identification and monitoring of even minor intubation-related laryngeal trauma.
Publisher
American Speech Language Hearing Association
Reference50 articles.
1. BAKEN R. J. (1987) Clinicalmeasurement of speech and voice. Boston: College-Hill Press.
2. Intubation granuloma;BALESTRIERI F.;OtolaryngologicClinicsof North America,1982
3. Observation on the pathogenesis of laryngeal granuloma due to endotracheal anesthesia;BARTON R. T.;New England Journalof Medicine,1953
4. Pitch perturbation as a function of subjective vocal constriction;BECKETT R. L.;FoliaPhoniatrica,1969
5. Laryngeal effects of prolonged intubation;BISHOP M. J.;Anesthesia and Analgesia,1984
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