Abstract
A 30-year-old woman with mild migraine, in her 33 weeks’ gestation, experienced a sudden onset parieto occipital headache, and soon developed motor aphasia and right hemiparesis with right homonymous visual field impairment. When admitted, the NIH stroke scale was 16, and the brain MRI revealed DWI high intensity areas in the left PCA distribution including the thalamus, hippocampus, and corona radiata with no visualization distal to P2 segment. Although eclampsia/preeclampsia was excluded, high-dose intravenous magnesium sulfate (20 g/day) was given together with heparin till successful full-term delivery. Her motor aphasia and hemiparesis totally disappeared with some residual homonymous visual field impairment. High-dose intravenous magnesium sulfate is considered to be a choice for reversible cerebral vasoconstriction syndrome associated with peripartum.
