Vestibular-evoked myogenic potentials in patients with dehiscence of the superior semicircular canal.

Vestibular-evoked myogenic potentials in patients with dehiscence of the superior semicircular canal.
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上半规管裂开患者的前庭诱发肌源性电位。

DOI:
10.1080/00016489950180559
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发表时间:
1999
影响因子:
1.4
通讯作者:
A. Tribukait
A. Tribukait
中科院分区:
医学4区
文献类型:
--
作者:
K. Brantberg;J. Bergenius;A. Tribukait

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最近,Minor及其同事描述了由于覆盖在上级半规管上的骨裂开而引起的声音和压力引起的眩晕的患者。识别这种“新的”前庭实体的患者是重要的,不仅因为症状可能非常失能,而且因为它们是可以手术治疗的。我们提出了三个这样的患者的症状和结果。在暴露于声音时,特别是在0.5-1 kHz的频率范围内,他们表现出类似于刺激上级半规管的垂直/扭转眼球运动。他们还表现出异常大的声音诱导前庭诱发肌源性电位(VEMP),即短潜伏期胸锁乳突肌反应被认为是囊状起源。VEMP也具有低阈值,特别是在0.5-1 kHz的频率范围内。然而,响应于通过颅骨敲击的囊状刺激,即当绕过中耳路径时,VEMP没有扩大。这表明,声音引起的反应和颅骨敲击引起的反应之间的关系可以区分一个大的,但正常的VEMP从一个异常大的反应,由于骨裂开覆盖的迷路,因为只有后者会产生大的声音引起的VEMP相比,由颅骨敲击引起的。
Recently Minor and co-workers described patients with sound- and pressure-induced vertigo due to dehiscence of bone overlying the superior semicircular canal. Identifying patients with this "new" vestibular entity is important, not only because the symptoms can be very incapacitating, but also because they are surgically treatable. We present symptoms and findings for three such patients. On exposure to sounds, especially in the frequency range 0.5-1 kHz, they showed vertical/torsional eye movements analogous to a stimulation of the superior semicircular canal. They also showed abnormally large sound-induced vestibular-evoked myogenic potentials (VEMP), i.e. the short latency sternomastoid muscle response considered to be of saccular origin. The VEMP also had a low threshold, especially in the frequency range 0.5-1 kHz. However, in response to saccular stimulation by skull taps, i.e. when the middle ear route was bypassed, the VEMP were not enlarged. This suggests that the relation between the sound-induced and the skull tap-induced responses can differentiate a large but normal VEMP from an abnormally large response due to dehiscence of bone overlying the labyrinth, because only the latter would produce large sound-induced VEMP compared to those induced by skull taps.
前庭功能的新测试。
DOI: 10.1111/j.1749-6632.2001.tb03764.x
发表时间: 2001
影响因子: 5.2
作者:
Demer,JL;Crane,BT;Tian,JR;Wiest,G
通讯作者: Wiest,G
由于上半规管骨裂开而引起的声音和/或压力引起的眩晕
DOI: 10.1001/archotol.124.3.249
发表时间: 1998-03-01
影响因子: --
作者:
Minor, LB;Solomon, D;Zee, DS
通讯作者: Zee, DS
哺乳动物前庭系统初级传入神经元的声音诱发活动。
DOI: --
发表时间: 1997
期刊: The American journal of otology.
影响因子: --
作者:
McCue,MP;GuinanJr,JJ
通讯作者: GuinanJr,JJ