Table of contents :
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rebleeding |
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death due to rebleeding |
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aphasia | very frequent | never |
dysarthria | only with paresis of VII-XIII cranial nerves | frequent |
drop attack : sudden loss of balance without loss of consciousness, usually seen in elderly women; various causes are hypothesized. | never | possible |
nystagmus | never | frequent |
diplopia | never | frequent |
alternate paresis | rare | more frequent |
upper limb paralysis | more severe distally | more severe proximally |
headache | not frequent | frequent |
persistent vomiting | rare | frequent |
hemianopia | possible | frequent |
monolateral amaurosis fugax | frequent | never |
bilateral amaurosis fugax | very rare | frequent |
dissociate sensibility | never | sometimes (Wallenberg's syndrome) |
perioral paresthesias | not rare | usually facial |
nucal rigidity and pain | very rare | not rare, often lateralized |
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persistent vegetative state | absent | intact | no intentional movement | none | normal | polymorphic, delta or theta, sometimes slow alpha | reduced by > 50% | according to causes |
locked-in syndrome | present | intact | quadriplegia or pseudobulbar paralysis or syndrome; conserved ocular movements | yes | normal | normal or mildly alterated | mildly alterated | improbable recovery, prolonged survival |
coma | absent | absent | no intentional movement | none | variably depressed | polymorphic delta or theta | reduced by > 50% | recovery, persistent vegetative state, or cerebral death |
cerebral death | absent | absent | none or due to spinal reflexes | none | absent | EEG silence | absent | no recovery |
Web resources : NINDS Coma and PVS
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