Baloh R W, Honrubia V, Jacobson K
Neurology. 1987 Mar;37(3):371-8. doi: 10.1212/wnl.37.3.371.
We report the clinical and oculographic features in 240 patients with benign positional vertigo (BPV). In each case, after a rapid position change from the sitting to head-hanging position, a stereotyped torsional paroxysmal positional nystagmus was visually observed and recorded with electronystagmography (ENG). The mean age of onset was 54 years, with a range of 11 to 84 years. In slightly more than one-half of the cases (122/240) a likely diagnosis was determined. The most common identifiable causes were head trauma (17%) and viral neurolabyrinthitis (15%). Females outnumbered males approximately two to one in the idiopathic group. Abnormalities on bithermal caloric testing were found in 47% of patients. Only two patients, both with well-documented neurologic disorders, had central signs on ENG. Our data are consistent with a peripheral, posterior semicircular canal origin of BPV.
我们报告了240例良性阵发性位置性眩晕（BPV）患者的临床和眼震图特征。在每例患者中，从坐位快速变换至头悬垂位后，通过肉眼观察并使用眼震电图（ENG）记录典型的扭转性阵发性位置性眼震。发病的平均年龄为54岁，范围为11至84岁。略超过半数的病例（122/240）确定了可能的诊断。最常见的可识别病因是头部外伤（17%）和病毒性神经迷路炎（15%）。特发性组中女性数量约为男性的两倍。47%的患者冷热试验异常。仅2例患者（均有明确记录的神经系统疾病）在ENG上有中枢性体征。我们的数据与BPV起源于外周后半规管一致。
