Relationship between endolymphatic hydrops and vestibular-evoked myogenic potential

Naomi Katayama; Masako Yamamoto; Masaaki Teranishi; Shinji Naganawa; Seiichi Nakata; Michihiko Sone; Tsutomu Nakashima

doi:10.3109/00016480903573187

Relationship between endolymphatic hydrops and vestibular-evoked myogenic potential

Naomi Katayama, Masako Yamamoto, Masaaki Teranishi, Shinji Naganawa, Seiichi Nakata, Michihiko Sone, Tsutomu Nakashima

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	917-923
Number of pages	7
Journal	Acta Oto-Laryngologica
Volume	130
Issue number	8
DOIs	https://doi.org/10.3109/00016480903573187
Publication status	Published - 08-2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Otorhinolaryngology

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title = "Relationship between endolymphatic hydrops and vestibular-evoked myogenic potential",

abstract = "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.",

author = "Naomi Katayama and Masako Yamamoto and Masaaki Teranishi and Shinji Naganawa and Seiichi Nakata and Michihiko Sone and Tsutomu Nakashima",

year = "2010",

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doi = "10.3109/00016480903573187",

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pages = "917--923",

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AU - Katayama, Naomi

AU - Yamamoto, Masako

AU - Teranishi, Masaaki

AU - Naganawa, Shinji

AU - Nakata, Seiichi

AU - Sone, Michihiko

AU - Nakashima, Tsutomu

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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