Lesser T H, Lesser P J
Department of Otolaryngology, University Hospital of Wales, Health Park, Cardiff.
J Laryngol Otol. 1987 Nov;101(11):1165-7. doi: 10.1017/s0022215100103433.
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.
研究了6名患者气管插管前后喉图的频率直方图。这些变化与插管时间相关。术后声音嘶哑表现为低频分布范围增加以及基频升高。后一种变化被认为是对声音嘶哑的一种下意识补偿。通过标准差测量的低频分布范围增加与插管时间成正比。
