Clinical signs

- Altered Consciousness . Confusion / obtundation

82 % : 20 % : 11 % : 25 % : 26 % : 47 % : 32 % : 16 % : 11 % : 10 %

. light coma (GCS > 10) . moderate coma (GCS 6-10) . deep coma (GCS <6)

- Motor deficit

- Pyramidal signs

- Seizures

- Hypertonia

- Neuro-vegetative signs

Once consciousness is regained, a complex clinical picture can be observed including motor deficits, sensory or cognitive disorders, ataxia, very frequently visual disorders (amaurosis, hemianopia, scotomata, or cortical blindness).

So the usual picture is one of cortical cerebral insult, frequently affecting the areas within the posterior circulation of the brain.

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