Yu Hong, Tong Busheng, Zhang Qing, Zhu Wei, Duan Maoli
Department of Otolaryngology, Head and Neck Surgery, First Hospital of Jilin University , Changchun , China.
Acta Otolaryngol. 2014 Sep;134(9):943-6. doi: 10.3109/00016489.2014.927591. Epub 2014 Jun 23.
Noise induced by drilling during cochleostomy is of high level and can cause acoustic trauma to the inner ear, particularly after the membranous labyrinth has been exposed. Our method utilizes non-invasive noise measurement and the equipment that is connected to the operative area can be sterilized, thus it can be applied to intraoperative recordings.
To investigate the noise level generated by otological electrical drills during the cochleostomy procedure and to further explore the feasibility of noise monitoring in vivo.
Acoustic measurements during drilling on the promontory of cochleae were carried out on 16 human cadavers (19 ears) using an ER7C probe microphone system.
The peak noise level generated during cochleostomy differed obviously from specimen to specimen and ranged from 85.9 to 131.5 dB SPL. We found three cases in which the peak noise level exceeded 130 dB SPL when the running burr touched the endosteal membrane.
耳蜗造孔术中钻孔产生的噪声水平很高，可对内耳造成声损伤，尤其是在膜迷路暴露后。我们的方法采用非侵入性噪声测量，且连接手术区域的设备可进行消毒，因此可应用于术中记录。
研究耳蜗造孔术过程中耳用电钻产生的噪声水平，并进一步探讨体内噪声监测的可行性。
使用ER7C探头麦克风系统对16具人类尸体（19只耳朵）的耳蜗岬进行钻孔时的声学测量。
耳蜗造孔术中产生的峰值噪声水平在不同标本间差异明显，范围为85.9至131.5 dB SPL。我们发现有3例在运转的钻头接触骨内膜时峰值噪声水平超过130 dB SPL。
