Hypertensive crisis

Posterior Reversible Encephalopathy Syndrome (PRES) is a newly recognised clinical entity, accompanied by characteristic depicted findings. Disturbance of consciousness levels, spasms, vomiting and cortical blindness are the clinical manifestations of the syndrome, while the main causes are hypertensive encephalopathy, renal failure, immunosuppressive and cytotoxic drugs. PRES may be displayed with reversible damage (white matter edema), while if infarcts happen, damage is considered irreversible or neuronal. Early MRI and Diffusion-Weighted MRI (DW-MRI) provide instant information, directly related to a prognosis, as DW-MRI can separate the vasogenic edema from the cytotoxic one, which is accompanied by early infarcts.

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