title: Posterior reversible encephalopathy syndrome.
abstract: The posterior reversible encephalopathy syndrome (PRES) is a neurological disorder of (sub)acute onset characterized by varied neurological symptoms, which may include headache, impaired visual acuity or visual field deficits, disorders of consciousness, confusion, seizures, and focal neurological deficits. In a majority of patients the clinical presentation includes elevated arterial blood pressure up to hypertensive emergencies. Neuroimaging, in particular magnetic resonance imaging, frequently shows a distinctive parieto-occipital pattern with a symmetric distribution of changes reflecting vasogenic edema. PRES frequently develops in the context of cytotoxic medication, (pre)eclampsia, sepsis, renal disease or autoimmune disorders. The treatment is symptomatic and is determined by the underlying condition. The overall prognosis is favorable, since clinical symptoms as well as imaging lesions are reversible in most patients. However, neurological sequelae including long-term epilepsy may persist in individual cases.
authors.affiliation: Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany. mar.fischer@uke.de.
authors.forename: Marlene
authors.identifier: http://orcid.org/0000-0001-5275-9252
authors.initials: M
authors.lastname: Fischer
authors.affiliation: Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria.
authors.forename: Erich
authors.initials: E
authors.lastname: Schmutzhard
mesh_terms: D006801:Humans; D054038:Posterior Leukoencephalopathy Syndrome / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*
keywords: Chemotherapy; Encephalopathy; Hypertensive encephalopathy; Preeclampsia; Vasogenic edema