Laryngeal trauma vs length of intubation.
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.
Lesser
T H
TH
Department of Otolaryngology, University Hospital of Wales, Health Park, Cardiff.
Lesser
P J
PJ
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006685:Hoarseness / Q000209:etiology; D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects*; D007830:Larynx / Q000293:injuries* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D013997:Time Factors