Nystagmus of Paroxysmal Positional Vertigo
| Autor: | A. Katsarkas, J. S. Outerbridge |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Adult
medicine.medical_specialty Eye Movements genetic structures Posture Nystagmus Audiology Nystagmus Pathologic 03 medical and health sciences 0302 clinical medicine medicine Humans 030212 general & internal medicine Clockwise 030223 otorhinolaryngology medicine.diagnostic_test business.industry Movement (music) Electronystagmography Oblique case Eye movement General Medicine Middle Aged Gaze eye diseases Otorhinolaryngology Positional vertigo Vertigo sense organs medicine.symptom business |
| Zdroj: | Annals of Otology, Rhinology & Laryngology. 92:146-150 |
| ISSN: | 1943-572X 0003-4894 |
| DOI: | 10.1177/000348948309200210 |
| Popis: | During attacks of paroxysmal positional vertigo in 12 patients, nystagmus in different gaze positions was observed visually and recorded by electronystagmography (eyes open, fixating). Visually observed eye movement was similar in all cases, with oblique (upward and horizontal) and rotatory (clockwise during leftward movement) components in the fast phase; rotation dominated on ipsilateral gaze (toward the lower ear) and oblique movement dominated on contralateral gaze. However, ENG recordings showed greater variability and were often inconsistent with visual observation; the horizontal component often reversed with change in gaze position, and dissociated eye movements, as well as down-beating nystagmus, were sometimes seen. More sophisticated measurement and strict attention to gaze position is required to resolve these discrepancies. |
| Databáze: | OpenAIRE |
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