Sudden Onset:
Vascular - commonest cause
Trauma and demyelination- less common
Insidious onset:
Space occupying lesions
Degenerative conditions
Rapidity of onset
Cerebral embolism ------ within seconds
Cerebral thrombosis --- within hours
Cerebral hemorrhage ---- very sudden and progresses
Relentlessly
Time of occurrence of hemiplegia:
During sleep or soon after rising from bed: cerebral thrombosis
During day time: cerebral embolism
During day time after exertion /emotion : cerebral -
hemorrhage
Progress: Quick recovery in embolism
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