How does preeclampsia affect pregnancy?

Thousands of women and babies die or get very sick each year from a dangerous condition called preeclampsia, a life-threatening disorder that occurs only during pregnancy and the postpartum period. Preeclampsia and related disorders such as HELLP syndrome and eclampsia are most often characterized by a rapid rise in blood pressure that can lead to seizure, stroke, multiple organ failure and death of the mother and/or baby.