The BP2 (Blood Pressure Postpartum) Study - commencing January 2019

Who for? Women who have recently had a hypertensive disorder of pregnancy (HDP) i.e. preeclampsia, gestational hypertension, chronic hypertension in pregnancy.

Why? Women who have had HDP are at increased risk of cardiovascular disease. This risk begins within a few years after HDP, but there is no trial evidence in this population to guide us regarding appropriate, effective management of this increased risk in the postpartum period.

Where? St George Hospital, Royal Hospital for Women, Royal Prince Alfred Hospital, Liverpool Hospital, and Campbelltown Hospitals.

When? Women will be offered the study as soon after birth as possible, then enrolled in the study by six months postpartum. 

What? Participating women will be randomly allocated to one of three different types of follow-up after hypertensive pregnancy. (Note: all women will still receive whatever immediate follow-up and referrals for their HDP that the hospital team thinks is appropriate, the study is extra).

  • Group 1: Optimised usual care – These women will receive information packs, as will their nominated GP, and we will ask them to have a BP and weight check with their GP at six months postpartum (ideally to coincide with six months baby check/vaccinations).
  • Group 2: Brief Education intervention – These women will receive information packs, and come with their babies to a one-off postpartum clinic at the study hospitals six months postpartum, where they will see an obstetric physician and a dietician
  • Group 3: Extended Lifestyle intervention – As well as coming to the postpartum clinic, this group will also be enrolled into a six month lifestyle behaviour change program.

All groups then come to the study hospitals 12 months postpartum for blood tests, physical check-up and baby check-up. All copies of consultations and test results will be sent to the womens nominated GPs. 

What are the researchers hoping to find?

The researchers hope to find which of these follow-up programs, if any, is effective in promoting positive lifestyle behaviour change (as measured primarily by weight and/or waist circumference change) and a decrease in blood pressure, in women in the first 12 months after hypertensive pregnancy.

What would the researchers like GPs to do?

  • Be aware that the study is happening
  • Be encouraging of study participation if your patients mention it!
  • For the women in group 1, who will come to see their GP at six months, ensure that their BP and weight is recorded (plus baby weight, height and head circumference), and be aware that the BP2 study midwives will contact you for this information (and supply you with a copy of the woman’s consent form showing that she consents to this information being given to the study coordinators) 

Questions/further information?

Lynne Roberts, Project Manager and Research Midwife or 9113 2117 

Dr Amanda Henry 

Study coordinator