Nagashima, Hinami University of Tokushima|Udaka ENT Clinic
Udaka, Jiro University of Tokushima|Udaka ENT Clinic
Shimada, Aki University of Tokushima
Kondo, Eiji University of Tokushima Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Takeda, Noriaki University of Tokushima Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Auditory steady-state response
Conductive hearing loss
Otitis media with effusion
Thesis or Dissertation
Objective: Multiple auditory steady-state responses (ASSRs) to air- and bone-conduction stimuli were recorded in young children with otitis media with effusion (OME). After treatment for OME, differences between pre-treatment bone-conduction ASSR levels and post-treatment conditioned orientation reﬂex (COR) or air-conduction ASSR levels were examined, and compared with ASSR-estimated air-bone gap (ABG) before treatment.
Methods: Navigator Pro with Master was used to assess the threshold of air- and bone-conduction ASSR in both ears at 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz. For bone-conduction ASSR, RadioEar B-71 bone-vibrator placed on the mastoid was used with white-noise masking on the contralateral ear.
Results: After ventilation tube placement, the thresholds of COR got closer to those of pre-treatment bone-conduction ASSR in young children with OME. Moreover, post-treatment air-conduction ASSR thresholds also got closer to those of pre-treatment bone-conduction ASSR. The differences between pre-treatment bone-conduction ASSR thresholds and post-treatment COR or air-conduction ASSR thresholds became much smaller than ASSR-estimated ABG before treatment.
Conclusion: These ﬁndings suggest that bone-conduction ASSR can assess the normal or near normal cochlear sensitivity in young children with conductive hearing loss. It is also suggested that ASSR-estimated ABG can be used clinically to predict their accurate ABG.
Auris Nasus Larynx
内容要旨・審査要旨 : LID201403051001.pdf
論文本文 : k2656_fulltext.pdf
© 2013 Elsevier Ireland Ltd. All right reserved.
|DOI (Published Version)|
|URL ( Publisher's Version )|
LID201403051001.pdf 186 KB
k2656_fulltext.pdf 252 KB
|MEXT report number||
Doctor of Medical Science