Faculty of Medicine, Clinic of ENT and Eye Diseases, Vilnius University, Vilnius, Lithuania.
Eur Arch Otorhinolaryngol. 2013 Jan;270(1):205-10. doi: 10.1007/s00405-012-2130-4. Epub 2012 Aug 3.
The objective of the study was to assess and perceive the vocal and pharyngeal symptoms and acoustic changes of voice after short-term endotracheal intubation and to evaluate the relation between these changes and the endotracheal tube parameters, number of intubation attempts, duration of anaesthesia, experience of anaesthesiologist. A total of 108 patients were evaluated preoperatively, 1-2 and 24 h after extubation. The vocal and pharyngeal symptoms, voice acoustic characteristics and maximum phonation time (MPT) were evaluated to find the relationship with endotracheal tube parameters, number of intubation attempts, duration of anaesthesia, experience of anaesthesiologist. All vocal and pharyngeal symptoms increased significantly at 24 h and remained significantly increased at 24 h after general anaesthesia. The vocal acoustic parameters changed significantly at 1-2 h: decrease of MPT and increase relative average perturbation were recorded. The day after the short-term intubation: only noise to harmony ratio and habitual pitch remains significantly changed. The most important endotracheal tube parameters that affect significantly (P value <0.05) the vocal function were the size of tube, cuff volume and number of intubation attempts. In relation to the anaesthesia, the changes of the acoustic parameters did not associate significantly with the anaesthesia-related parameters. No statistically significant relationship between experience of an anaesthesiologist and changes of the voice after anaesthesia was detected. Though being short-term, endotracheal anaesthesia is an invasive procedure, and its temporary influence on vocal function is important.
本研究旨在评估和感知短期气管内插管后咽喉部症状和嗓音声学变化，并评估这些变化与气管内导管参数、插管次数、麻醉持续时间、麻醉医师经验之间的关系。共 108 例患者在术前、拔管后 1-2 小时和 24 小时进行评估。评估了咽喉部症状、嗓音声学特征和最长发声时间（MPT），以发现与气管内导管参数、插管次数、麻醉持续时间、麻醉医师经验之间的关系。所有咽喉部症状在全麻后 24 小时显著增加，并持续至 24 小时后。嗓音声学参数在 1-2 小时显著变化：记录到 MPT 下降和相对平均扰度增加。短期插管后一天：仅噪声和谐比和习惯性音高仍显著改变。显著影响嗓音功能的最重要的气管内导管参数是管的大小、套囊体积和插管次数。与麻醉相关的参数，声学参数的变化与麻醉相关参数无显著相关性。麻醉医师的经验与麻醉后嗓音变化之间也未检测到统计学上的显著关系。尽管气管内麻醉是一种有创性的程序，但它对嗓音功能的短暂影响很重要。
