A research recommendation from the 2010 guideline which was superseded by these new research recommendations was deleted, and 3 research recommendations where research was now underway or had been completed were also deleted. Key recommendations for research 1 Management of chronic hypertension in pregnancy In women who need treatment for chronic hypertension in pregnancy, what is the effectiveness and safety of antihypertensive agents (compared in head-to-head trials) in improving maternal and perinatal outcomes? [2019] To find out why the committee made the research recommendation on pre-eclampsia, see rationale and impact. 2 Management of hypertension in pregnancy In women who need treatment for hypertension in pregnancy, what are the adverse neonatal outcomes associated with maternal use of beta blockers (or mixed alpha-beta To find out why the committee made these research recommendations on chronic hypertension, see rationale and impact. 3 Management of pre-eclampsia In which women with pre-eclampsia is inpatient management associated with better outcomes for women and babies? [2019] To find out why the committee made the research recommendation on pre-eclampsia, see rationale and impact. 4 Antihypertensive treatment during the postnatal period In women who need treatment for high blood pressure after birth, what is the effectiveness and safety (including in breastfeeding women) of antihypertensive agents in achieving adequate blood pressure control? [2019] To find out why the committee made the research recommendation on antihypertensive treatment during breastfeeding, see rationale and impact. 5 Fetal monitoring In women with hypertensive disorders of pregnancy, what is the optimal fetal monitoring strategy to detect small for gestational age infants? [2019] To find out why the committee made the research recommendation on fetal monitoring, see rationale and impact. 