Optimal Blood Pressure Treatment Thresholds Postpartum

The investigators will determine the feasibility of conducting a randomized controlled trial of tight blood pressure control (<135/85 mmHg on home BP monitoring) vs. standard of care (<150/100 mmHg on home BP monitoring) in postpartum individuals following a HDP with assessment of individuals who are eligible, enrolled, and remain in the study until six weeks postpartum. Individuals who are retained in the study for 6 months postpartum. Lastly, investigators will analyze effect outcomes to inform the sample size for a subsequent large-scale randomized trial. This will be done through analysis of mean arterial pressure (MAP), systolic blood pressure, and diastolic blood pressure of participants at 6 weeks and at 6 months postpartum. The study will be conducted on the postpartum unit of Magee-Womens Hospital. Participants will be enrolled at the time of postpartum hospitalization with study visit #1 occurring in the hospital. At this study visit, participants will be administered questionnaires, will provide a blood sample, and BP will be measured. Study visit #2 will be a remote study visit conducted via telemedicine or a telephone call at 6 weeks postpartum. At this visit, participants will provide questionnaires and blood pressure data. Study visit #3 will be a remote study visit conducted via telemedicine or a telephone call at 6 months postpartum. At this visit, participants will again provide questionnaires and blood pressure data.

Inclusion criteria

• Postpartum individuals ≥18 years old
• Preeclampsia or gestational hypertension diagnosis (complying ACOG criteria)
• Enrolled in remote BP management program.

Exclusion criteria

• Pre-pregnancy hypertension
• Pre-pregnancy diabetes
• Maternal cardiac disease
• Chronic kidney disease