TY - JOUR
T1 - Relationship between endolymphatic hydrops and vestibular-evoked myogenic potential
AU - Katayama, Naomi
AU - Yamamoto, Masako
AU - Teranishi, Masaaki
AU - Naganawa, Shinji
AU - Nakata, Seiichi
AU - Sone, Michihiko
AU - Nakashima, Tsutomu
N1 - Funding Information:
This study was supported by research grants from the Ministry of Health, Labour and Welfare and the Ministry of Education, Culture, Sports, Science & Technology in Japan.
PY - 2010/8
Y1 - 2010/8
N2 - Conclusion: Vestibular-evoked myogenic potential (VEMP) can be used to examine endolymphatic hydrops, especially in the vestibule. Objective: To investigate the relationship between the degree of endolymphatic hydrops revealed by magnetic resonance imaging (MRI) and VEMP. Methods: Gadolinium diluted with saline was injected intratympanically in 49 ears (40 patients). One day after the injection, the endolymphatic space in the vestibule and the cochlea was visualized by 3 Tesla MRI. A VEMP test was done, and VEMP was judged as absent when the VEMP was within the noise level. Results: VEMP was present in 21 ears and absent in 28 ears. Endolymphatic hydrops was significantly associated with the disappearance of VEMP. Endolymphatic hydrops in the vestibule had a stronger effect than endolymphatic hydrops in the cochlea. Five patients with extremely large vestibular hydrops showed no response of VEMP.
AB - Conclusion: Vestibular-evoked myogenic potential (VEMP) can be used to examine endolymphatic hydrops, especially in the vestibule. Objective: To investigate the relationship between the degree of endolymphatic hydrops revealed by magnetic resonance imaging (MRI) and VEMP. Methods: Gadolinium diluted with saline was injected intratympanically in 49 ears (40 patients). One day after the injection, the endolymphatic space in the vestibule and the cochlea was visualized by 3 Tesla MRI. A VEMP test was done, and VEMP was judged as absent when the VEMP was within the noise level. Results: VEMP was present in 21 ears and absent in 28 ears. Endolymphatic hydrops was significantly associated with the disappearance of VEMP. Endolymphatic hydrops in the vestibule had a stronger effect than endolymphatic hydrops in the cochlea. Five patients with extremely large vestibular hydrops showed no response of VEMP.
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U2 - 10.3109/00016480903573187
DO - 10.3109/00016480903573187
M3 - Article
C2 - 20105111
AN - SCOPUS:77954632708
VL - 130
SP - 917
EP - 923
JO - Acta Oto-Laryngologica
JF - Acta Oto-Laryngologica
SN - 0001-6489
IS - 8
ER -