Change of Otoacoustic Emissions in Early Stage of Meniere's Disease
Journal of the Korean Balance Society
;
: 15-20, 2006.
Article
in Korean
| WPRIM
| ID: wpr-131279
ABSTRACT
BACKGROUND AND OBJECTIVES:
To determine the clinical application of otoacoustic emissions (OAE) in screening of cochlear function, author studied changes of OAE in Meniere's disease patients. MATERIALS ANDMETHODS:
The author has measured several parameters of OAE with 34 meniere's patients and 15 normal persons. Pass rate, response amplitude, reproducibility were recorded at TEOAE. Amplitude of DP-gram were measured at 2 F2 frequencies-1000, 2000 Hz. The input/output functions of DPOAE were recorded at 2 F2 frequencies -1001, 2002 Hz (respectively DP-1000, DP-2000). Input/output function were determined based on 2 parameters- maximal level and Detection threshold of DPOAE.RESULTS:
1) TEOAE Significant lower rate of positive finding was recorded at involved ears (55.8%, 19/34) than normal ears (100%, 30/30). 2) DP-gram At frequency was 2000 Hz, amplitude of involved ears (n=28, 6.3+/-.5 dB/SPL) was significant smaller than normal ears (n=30, 6.3+/-.5 dB/SPL). 3) DP-input/output function At maximum DP level of DP-2000, response of involved ears (n=11, 51.6+/-.9 dB/SPL) was significant larger than normal ears (n=22, 48.5+/-.0 dB/SPL).CONCLUSION:
Parameters of OAE, such as pass rate of TEOAE, amplitude of DP-gram at 2000 Hz, and maximum DP level of DP-2000 was considered to good indicators for monitoring cochlear function of Meniere's disease. Furthermore, evaluation by changes in the TEOAE & DPOAE combined parameters, appeared to be very useful for detection of subtle change in cochlear function of Meniere's disease.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Mass Screening
/
Ear
/
Meniere Disease
Type of study:
Prognostic study
/
Screening study
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Balance Society
Year:
2006
Type:
Article
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