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作者用声管测量法连续观察鼓室插管术后的咽鼓管功能变化,并探讨此法是否有助于分泌性中耳炎的预后判断。其法为经橄榄球将持续的6、7或8 kHz的纯音导人鼻腔,吞咽时试验声通过咽鼓管,在耳罩内装置传声器,耳道内安放大小合适的探头,传声器放大后的声音经一窄频带通滤波器以降低背景噪声,用录音机记录声压级。振幅改变表示管开放。正常耳90～95%为阳性(声音通过咽鼓管)。有些正常人吞咽不能达到中耳通气,但张口、动下颌,(扌省)鼻或捏鼻鼓气时可达到通气。研究对象为84例4～14岁分泌性中耳炎患儿,共131耳。其中9例、15耳伴腭裂,已事先进行过修补术。于鼓室插管术前、术后1、3、
The author uses the sound tube method to continuously observe the eustachian tube function changes after the tympanic intubation, and to explore whether this method contributes to the prognosis of secretory otitis media. The method is the rugby will be sustained 6,7 or 8 kHz pure tone guided nasal cavity, swallowing test sound through the eustachian tube, microphone installed in the earmuffs, the ear canal placed the right size probe, the microphone amplified sound by A narrow band pass filter to reduce the background noise, using a recorder to record the sound pressure level. The change in amplitude indicates that the tube is open. 90-95% of normal ears are positive (sound through the eustachian tube). Some normal people can not reach the middle ear pharynx swallowing, but the mouth, move the jaw, nasal 或 (扌 province) or pinch the nasal gas can reach ventilation. The subjects were 84 children with secretory otitis media between 4 and 14 years old, with a total of 131 ears. Nine of them, 15 ears with cleft palate, had been previously repaired. In the tympanic intubation before and after surgery 1,3,