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自 Perlman(1951)介绍用记录外耳道声压变化以检查咽鼓管机能以来,经一些学者的研究改进,已成为灵敏,客观、生理的咽鼓管机能检查方法。作者从1978年起,用国产 XDH—2型心电图仪,外加音频振荡和选频放大装置,试制成功外耳道声压描记仪,并对50例(91耳)鼓膜外观正常者,以及7例(10耳)渗出性中耳炎有典型的咽鼓管机能障碍者进行测定。现将初步研究结果报告于下。
Since Perlman (1951) introduced the use of recording changes in the sound pressure of the external auditory canal to examine the function of the eustachian tube, this study has been developed by some scholars and has become a sensitive, objective and physiological method of eustachian tube function examination. The authors made a successful external auditory canal pressure sphygmomanometer with a homemade XDH-2 electrocardiograph and an audio frequency oscillation and frequency selective amplifier from 1978 onwards, and evaluated the appearance of 50 cases (91 ears) Ear) exudative otitis media with a typical eustachian tube dysfunction were measured. Now the preliminary findings are reported below.