Conjugate eye deviation after acute hemispheric stroke: Delayed recovery after previous contralateral frontal lobe damage
✍ Scribed by Israel Steiner; Dr Eldad Melamed
- Book ID
- 101465324
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 318 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0364-5134
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✦ Synopsis
In 42 patients with acute unilateral ischemic or hemorrhagic hemispheric stroke, conjugate eye deviation toward the lesioned side was usually of brief duration. It subsided within 48 hours in 24 patients (57%) and lasted no longer than 5 days in 38 patients (!No%). Early disappearance of conjugate eye deviation was an isolated phenomenon and preceded any improvement in the other focal neurological deficits, which persisted in their initial severity. In 6 additional patients with stroke, conjugate eye deviation was remarkably prolonged, lasting from 13 to more than 43 days. In all 6 there was evidence for preexisting damage to the contralateral frontal region. Our study suggests that early recovery of conju- gate eye deviation in patients with acute hemispheric stroke may be mediated by the contralateral unaffected frontal eye field.
Steiner I, Melamed E Conjugate eye deviation after acute hemispheric stroke: delayed recovery after previous contralateral frontal lobe damage. Ann Neurol 16:509-511, 1984 '\ Conjugate eye deviation (CED) toward the side of the lesion is one of the focal neurological manifestations associated with acute completed hemispheric stroke. Clinical experience indicates that, unlike other neurological signs, CED is usually of short duration and subsides early after stroke onset r2, 31. Furthermore, CED subsides despite frequent persistence of accompanying focal neurological deficits. The mechanism responsible for the relatively short duration of strokeinduced CED, particularly when there is no apparent change in the location and size of the causative lesion, is unknown. We have recently encountered 6 patients with stroke in whom CED was unusually prolonged. In all 6 there was evidence of previous damage to the contralateral frontal lobe. The clinical features of these From the Department of Neurology, H a d a s s a h