- PEARLS Preeclampsia Research Laboratories About preeclampsia Preeclampsia (high blood pressure in pregnancy) is the most common reason for women needing treatment and hospitalisation for complications in pregnancy. It is the most common reason for babies to need neonatal intensive care. About 4, 000 women in Australia are severely affected each year. Around 1500 babies have to be delivered ...www.preeclampsia.org.au