Isolated Environmental Tilt Associated with Lateral Medullary Compression by Dolichoectasia of the Vertebral ArteryIs There a Cause and Effect Relationship?
作者:
Michael,
Slavin Ronald,
期刊:
Journal of Clinical Neuro-Ophthalmology
(OVID Available online 1987)
卷期:
Volume 7,
issue 1
页码: 29-33
ISSN:0272-846X
年代: 1987
出版商: OVID
关键词: Dolichoectasia;Environmental tilt;Ocular counterrolling;Ocular tilt reflex;Otolith
数据来源: OVID
摘要:
An elderly woman with the persistent isolated symptom of monocular and binocular tilting of environmental objects, was found on magnetic resonance imaging to have compression of the lateral medulla by an ectatic vertebral artery. The double Maddox rod test showed no relative torsion of either globe although 5° of right excyclotorsion and left incyclotorsion (rightward ocular counter-rolling) was detected on testing with monocular viewing. There was no accompanying hyperdeviation, nystagmus or other neurologic signs. Symmetrical tilting of each globe associated with head tilt and skew deviation (the ocular tilt reflex) may be caused by lesions involving otolith connections. Isolated environmental tilt may herald the onset of lateral medullary infarction (Wallenberg's syndrome), or may be associated with vertebro-basilar insufficiency. Could compression of otolith connections in the medulla cause persistent ocular counter-rolling without accompanying neurologic signs?
点击下载:
PDF
(428KB)
返 回