Maier W, Münker G, Strutz J
HNO-Klinik, Universität Freiburg.
Laryngorhinootologie. 1993 Jan;72(1):39-42. doi: 10.1055/s-2007-997851.
The influence of topical anaesthesia of the tympanic membrane on Eustachian tube function was investigated using the pressure chamber impedance method, thus obtaining quantitative data. Anaesthesia was performed by application to the tympanic membrane of small cotton balls containing lidocaine and dimethylsulfoxide. We did not observe significant alterations of tubal parameters after unilateral or bilateral anaesthesia. Our observations are in contrast to investigations published by Nagai. We suppose that differences in methods of topical anaesthesia are responsible for this discrepancy. Our technique of topical anaesthesia of the tympanic membrane excludes any effect on the Eustachian tube, thereby avoiding negative consequences of middle ear pressure on wound healing.
采用压力室阻抗法研究鼓膜表面麻醉对咽鼓管功能的影响，从而获得定量数据。通过将含有利多卡因和二甲基亚砜的小棉球敷于鼓膜进行麻醉。我们未观察到单侧或双侧麻醉后咽鼓管参数有明显改变。我们的观察结果与永井发表的研究结果相反。我们推测这种差异是由表面麻醉方法的不同所致。我们的鼓膜表面麻醉技术排除了对咽鼓管的任何影响，从而避免了中耳压力对伤口愈合的负面影响。
