著者

小宮山 櫻子 中原 はるか 津田 幸子 吉村 恵理子 室伏 利久

出版者

一般社団法人 日本めまい平衡医学会

雑誌

Equilibrium Research (ISSN:03855716)

巻号頁・発行日

vol.72, no.6, pp.493-500, 2013

被引用文献数

2

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The purposes of this study was to elucidate the clinical characteristics of patients suffering from migraine-associated vertigo (MAV) including results of cervical vestibular evoked myogenic potential (cVEMP) and ocular VEMP (oVEMP). Thirty patients diagnosed as having MAV based on the diagnostic criteria by Sakata et al. were enrolled. We performed a retrospective chart review. These patients underwent medical history taking and examinations including cVEMP, oVEMP and a caloric test. All examinations were performed during a symptom-free interval. Twenty one patients (70%) experienced rotatory vertigo, 5 patients (17%) had floating dizziness and 4 patients (13%) had both. Twenty six patients (87%) reported tinnitus and/or aural fullness unilaterally or bilaterally. Their vertigo or dizziness lasted under 60 minutes in 10 patients (34%), 1 hour to 24 hours in 14 patients (46%), and over one day in 5 patients (17%). Canal paresis in the caloric test was observed in 5 patients (17%). Concerning cVEMP, 4 of the 30 patients (13%) showed absent cVEMPs bilaterally, 2 patients (7%) showed absent cVEMPs reflexes unilaterally, and one (3%) demonstrated decreased cVEMP amplitudes unilaterally. Only one patient showed prolonged cVEMP latencies. Concerning oVEMP, 6 of the 30 patients (20%) had absent oVEMP reflexes bilaterally, 2 (7%) had absent oVEMP reflexes unilaterally, and one (3%) had decreased oVEMP amplitudes unilaterally. In 2 patients prolonged oVEMP latencies were observed. No significant correlation was observed among cVEMP, oVEMP and the caloric test. This study showed abnormal vestibular reflexes could be shown by oVEMP as well as the caloric test and cVEMP. It was suggested that a portion of those patients with MAV have abnormal otolith-ocular reflexes.

著者

中原 はるか 竹森 節子 鶴岡 尚志

出版者

Japan Society for Equilibrium Research

雑誌

Equilibrium Research (ISSN:03855716)

巻号頁・発行日

vol.57, no.4, pp.435-442, 1998 (Released:2009-10-13)

参考文献数

17

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Spatial orientation is influenced by many factors such as vision, hearing, vestibular input, and so on. However, the details of when and which factor exert influence on this process remain mostly unknown. We investigated the influence of height on spatial orientation under various conditions.Body movement was recorded by stabilometry for 30 seconds under each of three visual conditions (eyes open without gaze fixation, eyes closed, and eyes open with gaze fixation) at 0 m, 1 m, 2 m, and 10 m22 cm high in 30 normal volunteers (14 males and 16 females) who had no history of vertigo or dizziness. Eight of subjects claimed to be acrophobic.The total length of the gravity center movements reflected the body sway best. The sway was minimal with eyes open and gaze fixated, and maximal with eyes closed. The sway increased at 10 m22 cm high, but was almost the same at 1 m and 2 m high. The acrophobic group was clearly worse than the non-acrophobic group at 10 m22 cm high. Their total shifting length increased because they became tense and shivered fractionally.Visual information which served as the base was useful for spatial orientation, and the mental factor of fear caused tension and the sway increased especially in the acrophobic group at 10 m22 cm high.

著者

坂田 阿希 中原 はるか 室伏 利久

出版者

一般社団法人 日本めまい平衡医学会

雑誌

Equilibrium Research (ISSN:03855716)

巻号頁・発行日

vol.67, no.1, pp.13-17, 2008 (Released:2008-05-02)

参考文献数

14

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Intratympanic instillation of gentamicin is currently a well-established treatment for intractable vertigo in patients with Meniere's disease. There are, however, only a few reports of this therapy in patients with non-Meniere type of vertigo. We report the case of a 68-year-old woman with the lateral semicircular canal type of benign paroxysmal positional vertigo (BPPV) following right idiopathic sudden hearing loss. The patient was annoyed by the positional vertigo for one and a half years and was successfully treated by intratympanic gentamicin instillation. She had profound hearing loss on the right side and direction-changing apogeotropic positional nystagmus. Her caloric response on the right side was severely decreased (canal paresis 80%). Intratympanic gentamicin instillation therapy was undertaken (30mg/ml/day × 5 days), following which her positional vertigo was abolished. We propose that intratympanic instillation of gentamicin may also be applicable to selected patients with long-lasting BPPV.

著者

小宮山 櫻子 中原 はるか 津田 幸子 吉村 恵理子 室伏 利久

出版者

一般社団法人 日本めまい平衡医学会

雑誌

Equilibrium Research (ISSN:03855716)

巻号頁・発行日

vol.72, no.6, pp.493-500, 2013-12-31 (Released:2014-02-01)

参考文献数

17

被引用文献数

2 2

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The purposes of this study was to elucidate the clinical characteristics of patients suffering from migraine-associated vertigo (MAV) including results of cervical vestibular evoked myogenic potential (cVEMP) and ocular VEMP (oVEMP). Thirty patients diagnosed as having MAV based on the diagnostic criteria by Sakata et al. were enrolled. We performed a retrospective chart review. These patients underwent medical history taking and examinations including cVEMP, oVEMP and a caloric test. All examinations were performed during a symptom-free interval. Twenty one patients (70%) experienced rotatory vertigo, 5 patients (17%) had floating dizziness and 4 patients (13%) had both. Twenty six patients (87%) reported tinnitus and/or aural fullness unilaterally or bilaterally. Their vertigo or dizziness lasted under 60 minutes in 10 patients (34%), 1 hour to 24 hours in 14 patients (46%), and over one day in 5 patients (17%). Canal paresis in the caloric test was observed in 5 patients (17%). Concerning cVEMP, 4 of the 30 patients (13%) showed absent cVEMPs bilaterally, 2 patients (7%) showed absent cVEMPs reflexes unilaterally, and one (3%) demonstrated decreased cVEMP amplitudes unilaterally. Only one patient showed prolonged cVEMP latencies. Concerning oVEMP, 6 of the 30 patients (20%) had absent oVEMP reflexes bilaterally, 2 (7%) had absent oVEMP reflexes unilaterally, and one (3%) had decreased oVEMP amplitudes unilaterally. In 2 patients prolonged oVEMP latencies were observed. No significant correlation was observed among cVEMP, oVEMP and the caloric test. This study showed abnormal vestibular reflexes could be shown by oVEMP as well as the caloric test and cVEMP. It was suggested that a portion of those patients with MAV have abnormal otolith-ocular reflexes.