A systematic review of posterior reversible encephalopathy syndrome in pregnant women with severe preeclampsia and eclampsia.

Background: The association of posterior reversible encephalopathy syndrome (PRES) and severe preeclampsia/eclampsia has been established but the frequency is uncertain.

Objectives: To determine the frequency of PRES in severe preeclampsia or eclampsia.

Methods: We searched published articles in PubMed, Cochrane library, Embase, and CINAHL from 1990 to 2020.