아동의 중이 검사 주파수(226, 678, 1,000 Hz) 영향 분석: 일반 및 특수학교대상 아동을 중심으로

서지정보

ㆍ발행기관 : 한국청각언어재활학회 ㆍ수록지정보 : 청능재활 / 13권 / 1호
ㆍ저자명 : 김춘혁, 김건구, 이승완, 김진숙

목차

INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSIONS
REFERENCES

한국어 초록

사람의 청각기관은 크게 말초와 중추 청각기관으로 나눌 수
있으며, 말초청각기관은 외이, 중이, 내이로 구성되어 있다. 중
이는 고막, 고실, 이소골, 이내근, 이관 등 다섯 가지의 구조물을
포함하고 있다. 그 중 중이의 시작 부분이며 소리 전달에 중요
한 역할을 하는 고막은 외이도와 고실 사이에 존재하는 얇은
막으로 진동을 통해 소리를 고실 내의 이소골로 전달한다(Ko,
2009). 이러한 고막은 중이 상태에 따라 진동이 달라지므로 그
진동현상을 분석하여 중이의 상태를 확인할 수 있는 역할을
한다.

영어 초록

Purpose: This study was to determine effects of three stimulus frequencies on tympanometry and to compare with Distortion Produtct
Otoacoustic Emission (DPOAE) for regular and special school-age children. Methods: A total number of 182 school-age children, 152
recruited from regular elementary school and 30 from special school, participated. All participants were evaluated by tympanogram
and DPOAE. Tympanograms were tested by 226, 678, and 1,000 Hz and analyzed with static compliance (SC) and earcanal volume
(EV). Results: Depending on three stimulus frequencies, SCs and EVs were 0.49, 1.45, and 1.26 ml and 0.92, 2.98, 4.52 cm3 in regular
school-age group and 0.56, 1.58, 1.29 ml and 0.98, 3.0, 4.48 cm3 in special school-age group. There were statistical significant differences
among three frequencies but no difference between regular and special school-age groups for both SCs and EVs (p < 0.05). The
pass and fail rate of DPOAE was 87.2% and 12.8% for regular school-age group and 57.6% and 42.4% for special school-age group,
showing a statistical significant difference between groups (p < 0.05). Agreement rate between tympanograms and DPOAE results was
the highest in 678 Hz. Conclusion: While there was no difference in middle ear status between groups, DPOAE results referred that the
inner ear status could be poor for the special school-age group. Therefore, more interests of hearing status should be aroused to the special
school-age children. Additionally, the 678 Hz seems to be more useful for screening school-age children. Further, more data with pure
tone examination be supplemented for the certain conclusion.

참고 자료

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