1.
Anaesthesia
; 58(10): 1035-6, 2003 Oct.
Article
in English
| MEDLINE
| ID: mdl-12969062
2.
J Laryngol Otol
; 101(11): 1165-7, 1987 Nov.
Article
in English
| MEDLINE
| ID: mdl-3694032
ABSTRACT
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.