The recommendations for pregnancies between 34 and 36 weeks gestation are also unclear.
The Hypertension and Preeclampsia Intervention Trial at Term (HYPITAT) study group completed a multicenter, randomized, controlled trial of 756 women to compare the outcomes of induction of labor versus expectant management in pregnancy-induced hypertension and mild preeclampsia.
Women enrolled were between 36 and 41 weeks gestation and were included if blood pressure was below 170/110 mm Hg.
Women in the expectant management group had a higher percentage use of antihypertensive medications and had a significantly higher composite adverse maternal outcome, including significantly increased incidence of severe hypertension.