Baloh R W, Jacobson K, Honrubia V
Department of Neurology, UCLA School of Medicine.
Neurology. 1993 Dec;43(12):2542-9. doi: 10.1212/wnl.43.12.2542.
We report the clinical features and results of quantitative eye-movement testing in 13 patients with episodic positional vertigo and nonfatiguing direction-changing horizontal positional nystagmus (beating to the right with the head turned to the right and beating to the left with the head turned to the left). The benign history and lack of associated neurologic findings support a peripheral localization of the lesion. This syndrome probably represents a horizontal semicircular canal variant of benign positional vertigo. Free-floating debris in one horizontal canal may explain many of the clinical and oculographic findings.
我们报告了13例发作性位置性眩晕且伴有非疲劳性变向性水平位置性眼球震颤（头转向右侧时眼球震颤向右，头转向左侧时眼球震颤向左）患者的临床特征及定量眼动测试结果。良性病史及无相关神经系统表现支持病变的外周定位。该综合征可能代表良性位置性眩晕的一种水平半规管变体。一个水平半规管内的自由漂浮碎片可能解释许多临床及眼震电图表现。
