(948) Antihypertensive therapy and unplanned postpartum health care utilization in patients with mild chronic hypertension
Friday, February 10, 2023
3:30 PM – 5:00 PM
Objective: To test whether treatment of mild chronic hypertension (CHTN) in pregnancy and postpartum will be associated with lower rates of unplanned healthcare utilization.
Study Design: This was a secondary analysis of CHTN and pregnancy (CHAP) study, a prospective, open-label, pragmatic, multicenter, randomized trial. All patients with a postpartum follow-up assessment were included.The primary outcome was unplanned healthcare utilization, defined as unplanned postpartum clinic visits, Emergency Department or triage visits, or unplanned hospital admissions. Differences in outcomes were compared between study groups (Active Group: blood pressure goal of < 140/90 mmHg, and Control Group: blood pressure goal of < 160/105 mmHg) and factors associated with outcomes were examined with logistic regression.
Results: A total of 2,293 patients were included with 1,157 (50.5%) in the active group and 1,136 (49.5%) in the control group. Rates of unplanned postpartum health care utilization did not differ between treatment and control groups (20.2% vs 23.3%, p=0.072). However, a subgroup of the primary outcome, Emergency Department and triage/maternity evaluation unit visits, were lower in the Active group (p=0.026) (Table 1). Higher BMI at enrollment and cesarean section vs. spontaneous vaginal delivery were associated with higher odds of unplanned postpartum healthcare utilization were (Table 2).
Conclusion: While treatment of mild CHTN during pregnancy and postpartum was not associated with the composite outcome of unplanned healthcare resource utilization, it was associated with lower rates of Emergency Department and triage visits postpartum.
Primary & Presenting Author(s)
Anna Palatnik, MD
Medical College of Wisconsin Milwaukee, Wisconsin, United States