慢性中耳炎患者에 있어서 電氣味覺檢査에 關한 硏究
Electrogustometric Study on the Chronic Suppurative Otitis Media Patients
고건성,
소속 상세정보
고건성 ( Koh Keun-Sung )
서울대학교 의과대학 이비인후과학교실
KMID : 0361019760190040001
Abstract
An electrogustometric study was done to the 25 patients of chronic suppurative otitis media who were admitted for middle ear surgery and to the 20 normal-persons as a control group.
The study was done about the following aspects:
1) Relation between the duration of the disease and the threshold of ´EGM:
2) Difference in the threshold of EGM between cholesteatomatous patients and non-choles-teatomatous patients.
3) Relation between the degrees of hearing loss and the EGM threshold.
4) Changes of EGM threshold. after injury to the chorda tympani.
The following results were obtained.
1) The EGM threshold of the control group was markedly increased as age increased.
2) The mean value of the EGM threshold of the control group was 53?A.
3) EGM threshold was high when duration of disease was long.
4) Average threshold in non-cholesteatomatous patients was 6l?A and that of cholesteatomatous patients was 80?A.
5) Degrees of hearing loss and EGM threshold had no specific relation, but in moderate severe hearing loss. (56?70 dB), the EGM threshold showed highest value, 102?A.
6) After chorda tympani was cut, the EGM threshold increased to 25?pA abruptly and there was no recovery.
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