White Judith A, Hughes Gordon B, Ruggieri Paul N
Head and Neck Institute, The Cleveland Clinic, Cleveland, Ohio 44195, USA.
Otol Neurotol. 2007 Oct;28(7):911-6.
To describe nystagmus induced by cranial vibration in a case series of 8 patients with superior semicircular canal dehiscence.
Consecutive case series review.
Tertiary vestibular center.
Eight consecutive patients with computed tomographic confirmed superior semicircular canal dehiscence syndrome observed in the last 24 months.
Vertex, bilateral mastoid, and bilateral suboccipital cranial vibration were performed using 100 Hz. Vibration for 10 to 15 seconds on patients in the seated position during office evaluation for vestibular complaints. Nystagmus was monitored by infrared video oculography with digital recording.
All patients demonstrated distinct torsional/vertical vibration-induced nystagmus. Maximal recorded slow-phase velocity was 20 degrees/s. This was observed best with suboccipital vibration on the side of the dehiscence.
Vibration-induced torsional/vertical nystagmus, observed best with ipsilateral suboccipital cranial vibration in the seated position, seems to be a sensitive screening test in the office setting for the presence of superior semicircular canal dehiscence.
在一个包含8例上半规管裂综合征患者的病例系列中描述由颅骨振动诱发的眼球震颤。
连续病例系列回顾。
三级前庭中心。
在过去24个月中连续观察到的8例经计算机断层扫描确诊为上半规管裂综合征的患者。
使用100Hz对头顶、双侧乳突和双侧枕下进行颅骨振动。在门诊对有前庭症状的患者进行评估时，让其坐位，振动10至15秒。通过数字记录的红外视频眼震图监测眼球震颤。
所有患者均表现出明显的扭转/垂直振动诱发的眼球震颤。记录到的最大慢相速度为20度/秒。在裂侧进行枕下振动时观察最为明显。
坐位时同侧枕下颅骨振动诱发的扭转/垂直眼球震颤在门诊似乎是上半规管裂存在的一种敏感筛查试验。
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