Positional and Positioning Nystagmus

Research in Vestibular Science > Volume 9(0); 2010 > Article

Research in Vestibular Science 2010;9(0): 32-37.

두위성/두위변환성 안진

이종대

순천향대학교 의과대학 이비인후-두경부외과학교실

Positional and Positioning Nystagmus

Jong Dae Lee, MD

Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Bucheon, Korea

ABSTRACT

Positional/positioning nystagmus occurs predominantly with specific head positions. The nystagmus can be attributed to either peripheral or central vestibular dysfunction. Benign paroxysmal postional vertigo (BPPV) is by far the most common cause of the nystagmus, accounting for about 90% of patients. Most central forms of positional vertigo involve the region around the vestibular nuclei and a neuronal loop to the cerebellar vermis. Positional/positioning tests should be performed in all patients with vertigo.