Ojala M, Vaheri E, Juntunen J
Institute of Occupational Health, Helsinki, Finland.
Clin Otolaryngol Allied Sci. 1989 Aug;14(4):343-8. doi: 10.1111/j.1365-2273.1989.tb00382.x.
Electronystagmography (ENG) was performed on 127 dizzy patients and the findings were compared with the diagnosis obtained with a comprehensive neurological test battery. ENG was found to be abnormal in 49 (39%) of the patients: 19 with unilateral vestibular hyporeactivity, eight with directional preponderance, 12 with spontaneous or undirectional positional nystagmus, eight with abnormal smooth pursuit, and 13 with other abnormalities. Among the patients with abnormal ENGs, established central nervous system lesions were found in 28 cases (19 of these infratentorial lesions); nine peripheral vestibular lesions and five undefined vestibular lesions were found. Patients with normal ENGs showed fewer peripheral vestibular lesions and more dizziness of psychogenic aetiology. Almost half the patients with infratentorial lesions had normal ENGs. Patients with rotatory vertigo had fewer ENG abnormalities than those with other types of dizziness. These results suggest that ENG alone is of limited value in the diagnosis of dizziness. A comprehensive test battery is needed to establish the diagnosis.
对127例头晕患者进行了眼震电图（ENG）检查，并将检查结果与通过全面神经学检查组合得出的诊断结果进行了比较。发现49例（39%）患者的ENG异常：19例单侧前庭反应减退，8例方向优势，12例自发性或无定向位置性眼震，8例异常视跟踪，13例有其他异常。在ENG异常的患者中，发现28例有明确的中枢神经系统病变（其中19例为幕下病变）；发现9例周围性前庭病变和5例不明前庭病变。ENG正常的患者周围性前庭病变较少，心因性病因导致的头晕较多。几乎一半的幕下病变患者ENG正常。旋转性眩晕患者的ENG异常比其他类型头晕的患者少。这些结果表明，单纯ENG在头晕诊断中的价值有限。需要进行全面的检查组合来确立诊断。
