Brantberg Krister, Bergenius Johan
Department of Audiology, Karolinska Hospital, Stockholm, Sweden.
Acta Otolaryngol. 2002 Jan;122(1):28-30. doi: 10.1080/00016480252775698.
A 75-year-old man with incapacitating anterior canal benign paroxysmal positional vertigo (BPPV) was relieved of symptoms following anterior semicircular canal occlusion using a transmastoid approach. The preoperative symptoms were similar to those of posterior canal BPPV. The preoperative findings on Dix-Hallpike's maneuver were a paroxysmal torsional nystagmus with a down-beating component that increased when the patient's gaze was directed towards the affected ear. The most provoking head movement for the vertigo/nystagmus was Dix-Hallpike's maneuver with the affected ear lowermost.
一名75岁男性患有导致失能的前半规管良性阵发性位置性眩晕（BPPV），采用经乳突入路进行前半规管闭塞术后症状得到缓解。术前症状与后半规管BPPV相似。术前Dix-Hallpike试验的结果是阵发性扭转性眼球震颤，伴有下跳成分，当患者目光指向患侧耳朵时震颤加剧。对眩晕/眼球震颤最具诱发作用的头部动作是患侧耳朵在最下方的Dix-Hallpike试验。
