Abstract
Posterior reversible encephalopathy syndrome (PRES) has been described as a neurological condition observed in a variety of clinical settings and is characterized by focal neurological deficits, seizures, headaches, altered mental status, and visual impairment, associated with transient typical lesions on neuroimaging, predominantly in the posterior part of the brain. The most common risk factors for PRES are hypertension, renal diseases, and the use of calcineurin inhibitors. The incidence of PRES in children with renal disorders varies between 4 and 9%, according to different reports. Vasogenic cerebral edema is considered the major pathophysiological mechanism of PRES. There are two main theories regarding the genesis of this edema: (1) hyperperfusion, due to autoregulatory failure of the cerebral vasculature, and (2) hypoperfusion, due to vasoconstriction of the cerebral arteries. In addition, PRES might also be the result of a systemic inflammatory state causing endothelial dysfunction. The management of PRES includes BP control, treatment of seizures, and removal of or reduction in calcineurin inhibitors. Intravenous administration of antihypertensive therapy is preferred, and various drugs have been used in this regard, including nicardipine, labetalol, sodium nitroprusside, and hydralazine. The prognosis of PRES is usually benign, except for rare cases with intracranial hemorrhage.
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Gavrilovici, C., Miron, I., Voroneanu, L. et al. Posterior reversible encephalopathy syndrome in children with kidney disease. Int Urol Nephrol 49, 1793–1800 (2017). https://doi.org/10.1007/s11255-017-1684-x
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DOI: https://doi.org/10.1007/s11255-017-1684-x