The influence of positional effects on the spontaneous decrease of downbeat nystagmus in the course of the day
R Spiegel, R Kalla, N Rettinger, E Schneider, D Straumann, S Marti, J Claassen, S Glasauer, T Brandt, M Strupp · Klinische Neurophysiologie · 2010 · Heft 03
Bibliografische Angaben
Zusammenfassung
Introduction: Downbeat nystagmus (DBN), often being caused by cerebellar degeneration (1), is the most frequent central spontaneous nystagmus (1, 2). Prior research has indicated that slow-phase velocity (SPV) of DBN is dependent on head position relative to gravity (3, 4) and that it decreases during the daytime when the head is in upright position (5). Based on these results, we examined patients in different resting positions (sitting upright, lying supine/prone) to determine whether the position has an effect on the DBN-decrease in the course of the day. Methods: Nine patients (five females, 44 to 72 years o…
