Perverted Head Shaking Nystagmus in a Patient with Cerebellar Infarction

J Korean Neurol Assoc > Volume 22(6); 2004 > Article

Journal of the Korean Neurological Association 2004;22(6): 646-648.

소뇌경색 환자에서 관찰된 두진후 이상안진

안규환, 김지수 문소영 박성호 정대수† 구자원

서울대학교 의과대학 신경과학교실, 이비인후과학교실*, 부산대학교 의과대학 신경과학교실†

Perverted Head Shaking Nystagmus in a Patient with Cerebellar Infarction

Kyu-Whan Ahn

Department of Neurology, Otolaryngology, Head and Neck Surgery*, Seoul National University College of Medicine, Seoul; Department of Neurology, Pusan National University College of Medicine†, Busan, Korea

Abstract

Perverted head shaking nystagmus (pHSN) refers to a phenomenon that the head shaking nystagmus occurs in a different plane than the vestibular stimulus. pHSN signifies central vestibular dysfunction. The authors describe a patient who showed an isolated downbeat head shaking nystagmus from a focal cerebellar infarction in the territory of the medial posterior inferior cerebellar artery. Head shaking maneuver should be applied to all patients with isolated vertigo from a presumed vascular origin. Key Words: Head shaking nystagmus, Vertigo, Cerebellum