Postpartum home blood pressure monitoring and lifestyle intervention in overweight and obese individuals the first year after gestational hypertension or pre-eclampsia: A pilot feasibility trial.

OBJECTIVE: To test the feasibility of a randomised trial of home blood pressure monitoring paired with a remote lifestyle intervention (Heart Health 4 New Moms) versus home blood pressure monitoring alone versus control in individuals with a hypertensive disorder of pregnancy in the first year postpartum. DESIGN: Single-blinded three-arm randomised clinical trial. SETTING: Two tertiary care hospitals and a community organisation. POPULATION: Postpartum overweight and obese individuals with a hypertensive disorder of pregnancy and without pre-pregnancy hypertension or diabetes. METHODS: We assessed the feasibility of recruitment and retention of 150 participants to study completion at 1-year postpartum with randomisation 1:1:1 into each arm. Secondary aims were to test effects of the interventions on weight, blood pressure and self-efficacy. RESULTS: Over 23 months, we enrolled 148 of 400 eligible, screened individuals (37%); 28% black or other race and mean pre-pregnancy body mass index (BMI) of 33.4 ± 6.7 kg/m2 . In total, 129 (87%) participants completed the 1-year postpartum study visit. Overall, 22% of participants developed stage 2 hypertension (≥140/90 mmHg or on anti-hypertensive medications) by 1 year postpartum. There were no differences in weight or self-efficacy across the study arms. CONCLUSION: In this pilot, randomised trial, we demonstrate feasibility of HBPM paired with a lifestyle intervention in the first year postpartum. We detected high rates of ongoing hypertension, emphasising the need for the development of effective interventions in this population.

Accuracy of Maternal Self-Report of Recent Preeclampsia Among Healthy Women.

Background: Preeclampsia history signals a higher risk for cardiovascular disease, but its value as a risk marker relies primarily on self-report. To identify the accuracy of maternal self-reports of recent preeclampsia, we conducted a validation study among women recruited to a web-based trial. Methods: Women with preeclampsia in the past 5 years were recruited to Heart Health 4 Moms. Preeclampsia was self-reported through an online recruitment questionnaire and affirmed via phone screen. Accuracy of maternal self-report was quantified using positive predictive value (PPV) versus medical record evidence of preeclampsia using three definitions: (1) documentation of clinician diagnosis, (2) American College of Obstetricians and Gynecologists (ACOG) 2002 diagnostic criteria (gestational hypertension and proteinuria), and (3) ACOG 2013 diagnostic criteria (gestational hypertension and proteinuria or systemic symptoms). Results: Complete medical records were received for 290 women who delivered from 2011 to 2016 and were predominantly non-Hispanic White (81.7%) with a mean age of 31.2 ± 4.8 years. Mean length of recall was 13.6 ± 14.7 months. The majority of women (92.1%) had medical record evidence of preeclampsia using ≥1 of the definitions. Maternal self-report of preeclampsia was validated for 88.3% based on clinician diagnosis, 59.0% with ACOG 2002, and 65.2% with ACOG 2013. Conclusions: In this validation study of U.S. women, the majority accurately self-reported their preeclampsia diagnosis based on medical record review. A higher proportion of self-reports validated by clinician diagnosis than ACOG criteria, suggesting women remember the diagnosis given by their provider and providers may not always follow or document criteria when making a diagnosis.

Randomized Trial to Reduce Cardiovascular Risk in Women with Recent Preeclampsia.

Background: To reduce cardiovascular disease (CVD) risk, we tested an online intervention to improve healthy lifestyle for women with recent preeclampsia. Materials and Methods: We conducted a randomized controlled 9-month clinical trial, Heart Health 4 Moms (HH4M), among 151 U.S. women with preeclampsia within 5 years. Sample size was planned to detect differences of 0.5 standard deviation units in primary outcomes between study arms. Preeclampsia history was validated by medical records; women with chronic hypertension were excluded. The intervention included online educational modules, a community forum, and communication with a lifestyle coach. The control group received internet links to CVD risk reduction information. Primary outcomes were self-efficacy to eat a healthy diet and increase physical activity; change in physical in/activity; adherence to the Dietary Approaches to Stop Hypertension (DASH) diet; and knowledge of and personal control over CVD risk. Secondary outcomes were weight and blood pressure. Results: In the intervention arm, 84% of participants accessed at least one online educational module; 89% completed at least three scheduled calls with the coach. At 9 months, intervention participants reported significantly greater knowledge of CVD risk factors (corrected p = 0.01), increased self-efficacy for healthy eating (p = 0.03), and less physical inactivity than controls (p = 0.0006). The groups did not differ in sense of personal control of CVD risk factors, adherence to the DASH diet, self-efficacy for physical activity, or reported physical activity. There were no differences in secondary outcomes between groups. Conclusions: The HH4M program improved CVD risk knowledge, self-efficacy to achieve a healthy diet, and reduced physical inactivity among women with recent preeclampsia.