Home blood pressure monitoring in the antenatal and postpartum period: A systematic review meta-analysis

"I believe it when there is an expert next to me:" a qualitative analysis on the perceptions and experiences of pregnant women to self-monitor blood pressure in Lombok, Indonesia

BACKGROUND

Hypertensive disorders of pregnancy (HDP) are a leading cause of maternal deaths and require close monitoring of blood pressure (BP) to mitigate potential adverse effects. The World Health Organization (WHO) recommends self-monitoring of blood pressure (SMBP) among women with HDP; however, there is limited research on its acceptability and feasibility in low- and middle-income contexts. We explored pregnant women's perceptions and attitudes towards SMBP, as well as practical considerations for SMBP by leveraging a smartphone-based BP measurement application in Lombok, Indonesia.

METHODS

Pregnant women with a current or history of HDPs were randomized to participate in focus group discussions (FGDs) regarding their attitudes towards SMBP or provided with a smartphone BP application to provide feedback on conducting SMBP. In-depth interviews (IDIs) were conducted among a subset of FGD participants to further explore perceptions. A second group of participants were provided with a smartphone application to familiarize themselves with SMBP and invited to IDIs to discuss their experiences. Husbands of this second group also participated in separate FGDs. Interviews were double transcribed in Bahasa Indonesia and translated to English for thematic analysis using inductive and deductive approaches.

RESULTS

We enrolled a total of 71 pregnant women, across 11 FGDs and conducted 15 IDIs with participants who used the smartphone for SMBP. Themes emerged related to (i) understanding of and experiences related to BP; (ii) facilitators and motivations for SMBP; (iii) barriers and concerns with SMBP; and (iv) experiences of using a smartphone-based BP application. While SMBP was perceived favorably by some women for convenience and reassurance in monitoring their BP, participants also expressed their reluctance to self-monitor BP due to factors, such as limited understanding of BP and controlling it, gravity of the consequences for their and fetus' health, self efficacy in conducting SMBP appropriately, trust in BP measurement devices, and being a new diagnosis for some women.

CONCLUSION

For SMBP to be implemented in line with WHO recommendations, efforts are needed to strengthen counselling among women with HDPs, clarify protocols for SMBP and subsequent actions, and provide continued support to pregnant women. Considering varying levels of BP knowledge, future research should examine the implications of introducing SMBP among pregnant women with chronic hypertension versus those with newly onset gestational hypertension, as well as the potential conflation between BP and blood haemoglobin.

Accuracy of the smartphone blood pressure measurement solution OptiBP to track blood pressure changes in pregnant women

INTRODUCTION

Hypertensive disorders present significant morbidity and mortality during pregnancy. Although ambulatory blood pressure measurement remains the standard of care for normotensive women, self-monitoring at home is increasingly prevalent. The widespread use of smartphones worldwide has sparked interest in mobile applications that leverage the built-in hardware for blood pressure estimation, yet few trials have assessed their accuracy.

METHODS

This prospective, longitudinal and monocentric study evaluated the accuracy of the OptiBP algorithm against standard oscillometric blood pressure measurements in a sample of pregnant women. Patients scheduled for elective caesarean sections were enrolled during the preoperative anesthesia consultations. Paired blood pressure measurements using OptiBP and the reference method were obtained at multiple time-points in late pregnancy and the postpartum period. Agreement between methods was assessed using the AAMI/ESH/ISO 81060-2:2018 standard thresholds of 5 ± 8 mmHg for mean ± standard deviation of the error (criterion 1) and patient-specific standard deviation of the mean error (criterion 2) and represented graphically by Bland-Altman scatterplots.

RESULTS

Forty-eight women were enrolled of which 32 completed the protocol, yielding 338 total valid measurement pairs. Mean and standard deviation of the error were -1.78 ± 7.94 and 1.19 ± 7.59, and the patient-specific standard deviation of the mean error was 4.68 and 4.52, for SBP and DBP, respectively.

CONCLUSION

Compared with blood pressure measurements taken with an oscillometric device, OptiBP's blood pressure estimates meet the AAMI/ESH/ISO 81060-2:2018 criteria.

The feasibility of implementing a digital pregnancy and postpartum support program in the Midwestern United States and the association with maternal and infant health

Objective

The benefits of mobile applications in the prenatal period remain understudied. This study assessed associations between the Pregnancy Postpartum Support Program (PPSP), a digital wraparound service, and maternal and infant outcomes in a Medicaid population.

Methods

A retrospective analysis was conducted on pregnant patients with Medicaid insurance who received care and delivered in a Midwestern United States healthcare system between 8/1/2022-8/15/2023, comparing outcomes among those who did versus did not opt for PPSP enrollment. Enrolled patients were offered a mobile device app providing weekly education, "twenty-four seven" support from a clinical team, and telehealth provider visits. Adjusted multiple covariate analyses were completed using linear and logistic regressions. Patient engagement, vendor-based interaction and perception of care data were also examined.

Results

1912 patients were evaluated: 397 in the PPSP and 1515 in the control group. PPSP cohort inclusion was associated with 4 % lower maternal length of stay (LOS) (p = 0.05), 14 % lower infant LOS (p < 0.01), higher mean infant birthweight (p < 0.01), lower odds of birthweight <2500 g (p = 0.05) and lower odds of preterm birth (p = 0.04). Nearly 85 % of all enrolled reported being "very satisfied" with the program.

Conclusions

Overall, the program was positively received by PPSP participants. Favorable outcomes associated with enrollment may be due to the program, unmeasured variables, or both. Our study shows the feasibility of offering digital support to pregnant women who voluntarily enrolled in the PPSP and adds to the evidence evaluating virtual care strategies.

Synopsis of the 2023 U.S. Department of VA and U.S. DoD Clinical Practice Guideline for the Management of Pregnancy

INTRODUCTION

This Clinical Practical Guideline provides recommendations based on a systematic review of the evidence to address critical decision points in the management of pregnancy. The guideline is intended to improve patient outcomes and local management of patients who are pregnant. This CPG is based on a systematic review of both clinical and epidemiological evidence and was developed by a panel of multidisciplinary experts. The Work Group provides clear and comprehensive evidence-based recommendations incorporating current information and practices targeting practitioners throughout the DoD and VA Health Care systems. The guideline is intended to improve patient outcomes and local management of patients who are pregnant. This CPG does not address every aspect of routine pregnancy care and is not intended to be a comprehensive guide to all care needed in pregnancy. It also addresses some clinically important and generally accepted standards of pregnancy care interventions that do not have sufficient high-quality evidence to support standalone recommendations. Additionally, it highlights emerging topics that have the potential to impact pregnancy care in the future and identifies gaps in the literature that warrant further research.

MATERIALS AND METHODS

The development of all VA/DoD guidelines is directed by the Evidence-Based Practice Guideline Work Group and adheres to the standards for trustworthy guidelines that were set by the National Academy of Medicine. A patient focus group was convened to assess important aspects of treatment for patients and to gain information about patient values and preferences. The Lewin Group, a contracted third party with expertise in CPG development, facilitated meetings and the development of key questions using the population, intervention, comparison, outcome, timing, and setting format. Consensus was achieved among the Work Group through an iterative process involving discussions on conference calls and in person during the recommendation development meeting. An independent third party, ECRI, conducted the systematic evidence review, which the guideline Work Group then used to develop recommendations using the Grading of Recommendations Assessment, Development and Evaluation system (7-9). The search methods and results are detailed in the full guideline.

RESULTS

This CPG provides 28 clinical practice recommendations that cover selected topics that the Work Group deemed had high priority need for evidence-based standards. The recommendations are divided into 3 main categories: routine care, complicated obstetrics, and mental health. An algorithm delineating recommended interventions and appropriate timing of these interventions over the course of the pregnancy and postpartum period was also created.

CONCLUSION

The CPG is not intended to define standards of care nor address all care needed in pregnancy; it does provide comprehensive guidance for routine pregnancy care. It aligns with the VA and DOD's goal of providing care that is consistent in quality and utilization of resources in efforts to reduce errors and inappropriate variations in practices. In total, the Work Group identified 71 items needing further study, including areas requiring stronger evidence to support current recommendations and newer topics that will guide future guideline development.

The Potential of Tele-Ultrasound, Handheld and Self-Operated Ultrasound in Pregnancy Care: A Systematic Review

OBJECTIVE

To explore the use of tele-ultrasound and handheld or self-operated ultrasound in pregnancy.

METHODS

A systematic search provided 31 studies. The risk of bias for each study was assessed. Results were analyzed and presented in a narrative overview in four domains: tele-ultrasound, patient-operated ultrasound, handheld devices and low- and middle-income countries (LMIC).

RESULTS

The quality of studies was generally low or fair based on the NIH Quality Assessment Tools. Fetal tele-ultrasound services (11 studies) are feasible and especially helpful in rural areas or with increased centralization of specialist care. Three studies with patient-operated ultrasound concluded its feasibility with good-to-high experiences. The use of handheld devices in pregnancy (eight studies) showed similar ultrasound results when compared to standard devices. In LMICs, innovative use of ultrasound (nine studies) can facilitate access to obstetric care performed by trained as well as unskilled caregivers combined with remote evaluation by an expert.

CONCLUSIONS

Innovations in ultrasound in pregnancy care have shown promising results for application. Although most studies demonstrated benefits for pregnant women or care providers, high-level evidence is scarce. High-quality studies on innovations are needed to assess medical outcomes, patient and provider experiences and costs.

Preeclampsia and eclampsia: Enhanced detection and treatment for morbidity reduction

Preeclampsia is a life-threatening complication that develops in 2-8% of pregnancies. It is characterized by elevated blood pressure after 20 weeks of gestation and may progress to multiorgan dysfunction, leading to severe maternal and fetal morbidity and mortality. The only definitive treatment is delivery, and efforts are focused on early risk prediction, surveillance, and severity mitigation. Anesthesiologists, as part of the interdisciplinary team, should evaluate patients early in labor in order to optimize cardiovascular, pulmonary, and coagulation status. Neuraxial techniques are safe in the absence of coagulopathy and aid avoidance of general anesthesia, which is associated with high risk in these patients. This review aims to provide anaesthesiologists with a comprehensive update on the latest strategies and evidence-based practices for managing preeclampsia, with an emphasis on perioperative care.

Severe Hypertension in Pregnancy: Progress Made and Future Directions for Patient Safety, Quality Improvement, and Implementation of a Patient Safety Bundle

Hypertensive disorders of pregnancy account for approximately 5% of pregnancy-related deaths in the United States and are one of the leading causes of maternal morbidity. Focus on improving patient outcomes in the setting of hypertensive disorders of pregnancy has increased in recent years, and quality improvement initiatives have been implemented across the United States. This paper discusses patient safety and quality initiatives for hypertensive disorders of pregnancy, with an emphasis on progress made and a patient safety tool: the Alliance for Innovation on Maternal Health's Severe Hypertension in Pregnancy patient safety bundle. Future patient safety and quality directions for the treatment of hypertensive disorders of pregnancy will be reviewed.

Feasibility of Remote Blood Pressure Monitoring for Detection and Management of Maternal Hypertension in a predominantly Black, Rural and Medicaid Population in Mississippi

Background: Remote patient monitoring (RPM) has potential in hypertension management, but limited studies have focused on maternal hypertension, especially among vulnerable populations. The objective of this study was to integrate RPM into perinatal care for pregnant patients at elevated risk of hypertensive disorders to show feasibility, acceptability, and safety. Methods: A prospective pilot cohort study was conducted at the University of Mississippi Medical Center 2021-2023. Participants' blood pressure readings were remotely captured and monitored until 8-week postpartum, with timely assessment and intervention. Results: Out of 98 enrollees, 77 utilized RPM, and no maternal or neonatal deaths occurred within 60-day postpartum. High program satisfaction was reported at discharge. Conclusion: This study demonstrates the feasibility and acceptability of RPM for perinatal care in a vulnerable population. Positive outcomes were observed, including high patient satisfaction and no maternal or neonatal deaths. Further research should address patient engagement barriers and develop tailored protocols for improved clinical outcomes.

Rapid implementation of blood pressure self-monitoring in pregnancy at a UK NHS Trust during the COVID-19 pandemic: a quality improvement evaluation

BACKGROUND

This service evaluation describes the rapid implementation of self-monitoring of blood pressure (SMBP) into maternity care at a tertiary referral centre during the COVID-19 pandemic. It summarises findings, identifies knowledge gaps and provides recommendations for further research and practice.

INTERVENTION

Pregnant and postpartum women monitored their blood pressure (BP) at home, with instructions on actions to take if their BP exceeded pre-determined thresholds. Some also conducted proteinuria self-testing.

DATA COLLECTION AND ANALYSIS

Maternity records, app data and staff feedback were used in interim evaluations to assess process effectiveness and guide adjustments, employing a Plan-Do-Study-Act and root cause analysis approach.

RESULTS

Between March 2020 and August 2021, a total of 605 women agreed to self-monitor their BP, including 10 women with limited English. 491 registered for telemonitoring (81.2%). 21 (3.5%) took part in urine self-testing. Engagement was high and increased over time with no safety issues. Biggest concerns related to monitor supply and postnatal monitoring. In December 2020, SMBP was integrated into the standard maternity care pathway.

CONCLUSIONS

This project demonstrated successful integration of SMBP into maternity care. Early stakeholder engagement and clear guidance were crucial and community midwifery support essential. Supplying BP monitors throughout pregnancy and post partum could improve the service and fully digitised maternity records would aid data collection. More research is needed on SMBP in the postnatal period and among non-English speakers. These findings support efforts to implement app-supported self-monitoring and guide future research.

The impact of telehealth applications on pregnancy outcomes and costs in high-risk pregnancy: A systematic review and meta-analysis

INTRODUCTION

Telehealth is an applicable, acceptable, cost-effective, easily accessible, and speedy method for pregnant women. This study aimed to examine the impact of telehealth applications on pregnancy outcomes and costs in high-risk pregnancies.

METHODS

Studies were selected from PubMed, Science Direct, Web of Science, EBSCO, Scopus, and Clinical Key databases according to the inclusion and exclusion criteria from January to February 2021. Cochrane risk-of-bias tools were used in the quality assessment of the studies.

RESULTS

Four observational and eight randomized controlled studies were included in this meta-analysis (telehealth: 135,875, control: 94,275). It was seen that the number of ultrasound (p < 0.01) and face-to-face visits (p < 0.01), fasting insulin (p < 0.01), hemoglobin A1C before delivery (p < 0.01), and emergency cesarean section rates (p = 0.05) were lower in the telehealth group. In the telehealth group, the women's use of antenatal corticosteroids (p = 0.03) and hypoglycemic medication at delivery (p = 0.03), the total of nursing interventions (p < 0.01), compliance with actual blood glucose measurements (p < 0.01), induction intervention at delivery (p = 0.003), and maternal mortality (p < 0.001) rates were higher. Two groups were similar in terms of the use of medical therapy, total gestational weight gain, health problems related to pregnancy, mode and complications of delivery, maternal intensive care unit admission, fetal-neonatal growth and development, neonatal health problems and mortality, follow-up, and care costs.

DISCUSSION

Telehealth and routine care yielded similar maternal/neonatal health and cost outcomes. It can be said that telehealth is a safe technique to work with in the management of high-risk pregnancies.

Detection and Control of Pregnancy Hypertension Using Self-Monitoring of Blood Pressure With Automated Telemonitoring: Cost Analyses of the BUMP Randomized Trials

BACKGROUND

Pregnancy hypertension continues to cause maternal and perinatal morbidity. Two linked UK randomized trials showed adding self-monitoring of blood pressure (SMBP) with automated telemonitoring to usual antenatal care did not result in earlier detection or better control of pregnancy hypertension. This article reports the trials' integrated cost analyses.

METHODS

Two cost analyses. SMBP with usual care was compared with usual care alone in pregnant individuals at risk of hypertension (BUMP 1 trial [Blood Pressure Monitoring in High Risk Pregnancy to Improve the Detection and Monitoring of Hypertension], n=2441) and with hypertension (BUMP 2 trial, n=850). Clinical notes review identified participant-level antenatal, intrapartum, and postnatal care and these were costed. Comparisons between trial arms used means and 95% CIs. Within BUMP 2, chronic and gestational hypertension cohorts were analyzed separately. Telemonitoring system costs were reported separately.

RESULTS

In BUMP 1, mean (SE) total costs with SMBP and with usual care were £7200 (£323) and £7063 (£245), respectively, mean difference (95% CI), £151 (-£633 to £936). For the BUMP 2 chronic hypertension cohort, corresponding figures were £13 384 (£1230), £12 614 (£1081), mean difference £323 (-£2904 to £3549) and for the gestational hypertension cohort were £11 456 (£901), £11 145 (£959), mean difference £41 (-£2486 to £2567). The per-person cost of telemonitoring was £6 in BUMP 1 and £29 in BUMP 2.

CONCLUSIONS

SMBP was not associated with changes in the cost of health care contacts for individuals at risk of, or with, pregnancy hypertension. This is reassuring as SMBP in pregnancy is widely prevalent, particularly because of the COVID-19 pandemic.

REGISTRATION

URL: https://www.clinicaltrials.gov; Unique identifier: NCT03334149.

Facilitators and barriers to home blood pressure monitoring among pregnant women in Ghana: a mixed-methods analysis of patient perspectives

BACKGROUND

The benefit of home blood pressure monitoring during pregnancy and in low-resource settings is incompletely understood. The objective of this study was to explore the experiences, barriers, and facilitators of home blood pressure monitoring among pregnant women in Ghana.

METHODS

This concurrent triangulation mixed-methods study was conducted at an urban tertiary hospital in Ghana. Participants were recruited from adult pregnant women presenting for routine antenatal care. Upon enrollment, participants' demographics and history were collected. At the next study visit, participants received audiovisual and hands-on training on using an automatic blood pressure monitor; they then monitored and logged their blood pressure daily at home for 2-4 weeks. At the final study visit, verbally administered surveys and semi-structured interviews assessed participant's experiences. Quantitative data were analyzed using R version 4.2.2, and frequencies and descriptive statistics were calculated. Qualitative data were imported into DeDoose 9.0.78 for thematic analysis.

RESULTS

Of 235 enrolled participants, 194 completed surveys; of those, 33 completed in-depth interviews. Participants' mean age was 31.6 (SD 5.3) years, 32.1% had not previously given birth, and 31.1% had less than a senior high school education. On a 4-point Likert scale, the majority reported they "definitely" were able to remember (n = 134, 69.1%), could find the time (n = 124, 63.9%), had the energy (n = 157, 80.9%), could use the blood pressure monitor without problems (n = 155, 79.9%), and had family approval (n = 182, 96.3%) while engaging in home blood pressure monitoring. 95.88% (n = 186) believed that pregnant women in Ghana should monitor their blood pressure at home. Qualitative thematic analysis demonstrated that most participants liked home blood pressure monitoring because of increased knowledge of their health during pregnancy. While most participants found measuring their blood pressure at home doable, many faced challenges. Participants' experiences with five key factors influenced how easy or difficult their experience was: 1) Time, stress, and daily responsibilities; 2) Perceived importance of BP in pregnancy; 3) Role of family; 4) Capability of performing monitoring; 5) Convenience of monitoring.

CONCLUSIONS

Among pregnant women in urban Ghana, home blood pressure monitoring was perceived as positive, important, and doable; however, challenges must be addressed.

Impact of early preeclampsia prediction on medication adherence and behavior change: a survey of pregnant and recently-delivered individuals

BACKGROUND

Behavior change and medication adherence represent potential barriers to optimal prevention of pregnancy complications including preeclampsia. We sought to evaluate baseline sentiments on pregnancy care and medication amenability, and how these measures would be impacted by early predictive testing for preeclampsia.

METHODS

We developed a digital survey to query participants' baseline sentiments on pregnancy care, knowledge about pregnancy complications, and views on a hypothetical test to predict preeclampsia. The survey was administered online to pregnant and recently-delivered individuals in the United States. Survey data were analyzed using pooled two-sample proportion z-tests with adjustment for multiple comparisons.

RESULTS

One thousand and twenty-two people completed the survey. 84% reported they were satisfied with their pregnancy care. Self-assessed knowledge about preeclampsia was high, with 75% of respondents reporting they have a "good understanding" of preeclampsia, but measured knowledge was low, with only 10% able to identify five common signs/symptoms of preeclampsia. Notably, 40% of participants with prior preeclampsia believed they were at average or below-average risk for recurrence. 91% of participants desired early pregnancy predictive testing for preeclampsia. If found to be at high risk for preeclampsia, 88% reported they would be more motivated to follow their provider's medication recommendations and 94% reported they would desire home blood pressure monitoring. Increased motivation to follow clinicians' medication and monitoring recommendations was observed across the full spectrum of medication amenability. Individuals who are more medication-hesitant still reported high rates of motivation to change behavior and adhere to medication recommendations if predictive testing showed a high risk of preeclampsia. Importantly, a high proportion of medication-hesitant individuals reported that if a predictive test demonstrated they were at high risk of preeclampsia, they would feel more motivated to take medications (83.0%) and aspirin (75.9%) if recommended.

CONCLUSION

While satisfaction with care is high, participants desire more information about their pregnancy health, would value predictive testing for preeclampsia, and report they would act on this information. Improved detection of at-risk individuals through objective testing combined with increased adherence to their recommended care plan may be an important step to remedy the growing gap in prevention.

Hypertensive Disorders of Pregnancy: Innovative Management Strategies

Hypertensive disorders of pregnancy (HDP) complicate 13% to 15% of pregnancies in the United States. Historically marginalized communities are at increased risk, with preeclampsia and eclampsia being the leading cause of death in this population. Pregnant individuals with HDP require more frequent and intensive monitoring throughout the antepartum period outside of routine standard of care prenatal visits. Additionally, acute rises in blood pressure often occur 3 to 6 days postpartum and are challenging to identify and treat, as most postpartum individuals are usually scheduled for their first visit 6 weeks after delivery. Thus, a multifaceted approach is necessary to improve recognition and treatment of HDP throughout the peripartum course. There are limited studies investigating interventions for the management of HDP, especially within the United States, where maternal mortality is rising, and in higher-risk groups. We review the state of current management of HDP and innovative strategies such as blood pressure self-monitoring, telemedicine, and community health worker intervention.

Improving obstetric and perinatal outcomes with a remote patient monitoring program for hypertension in a large integrated care system

OBJECTIVE

To determine the effect of a remote patient monitoring program for hypertension (RPM HTN) in patients diagnosed with hypertensive disorders of pregnancy.

STUDY DESIGN

We used a matched retrospective cohort design to evaluate differences in obstetric and perinatal outcomes using data from electronic medical records. Patients enrolled in RPM HTN between November 1, 2019, and October 31, 2021, who delivered a pregnancy at ≥20 weeks gestation were compared to a cohort of patients matched by age, race, HTN and diabetes status, who delivered in the 48-month period before implementation of RPM HTN.

RESULTS

1030 patients were enrolled in RPM HTN and 937 were matched to historical controls. Five hundred and seventeen (50.2 %) were enrolled in the antepartum period and 513 (49.8 %) were enrolled postpartum. Patients in the RPM HTN cohort were more likely to have a post-hospital discharge blood pressure (BP) measured within the first 20 days after delivery (RR 1.56, 95 % CI: 1.47-1.65: p < 0.01) and were more likely to have that BP be normal (RR 1.43, 95 % CI: 1.31-1.55: p = 0.05). They were also more likely to be taking antihypertensives postpartum (RR 1.27, 95 % CI: 1.15-1.40; p < 0.01) and to be evaluated by an obstetric clinician within 20 days of delivery (RR 1.50, 95 % CI 1.42-1.58; p < 0.01).

CONCLUSIONS

A remote HTN monitoring program for 937 obstetric patients was associated with improved BP monitoring, better postpartum BP control, and improved linkages to clinician care after delivery, when compared to historical controls.

Using self-monitoring to detect and manage raised blood pressure and pre-eclampsia during pregnancy: the BUMP research programme and its impact

Raised blood pressure affects around ten percent of pregnancies worldwide, causing maternal and perinatal morbidity and mortality. Self-monitoring of blood pressure during higher-risk or hypertensive pregnancy has been shown to be feasible, acceptable, safe, and no more expensive than usual care alone. Additionally, self-testing for proteinuria has been shown to be just as accurate as healthcare professional testing, creating the potential for monitoring of multiple indicators through pregnancy. The work suggests however, that an organisational shift is needed to properly use and see benefits from self-monitored readings. This paper describes the findings from a large programme of work examining the use of self-monitoring in pregnancy, summarising the findings in the context of the wider literature and current clinical context. The BUMP Research Programme developed and tested self-monitoring and self-testing interventions for pregnancy. The work showed that self-monitoring during pregnancy was feasible, acceptable, safe, and no more expensive, but did not improve the detection or control of hypertension.

Exploring perceptions and operational considerations for use of a smartphone application to self-monitor blood pressure in pregnancy in Lombok, Indonesia: protocol for a qualitative study

INTRODUCTION

Hypertensive disorders of pregnancy (HDP) are a leading cause of maternal deaths globally and require close monitoring of blood pressure (BP) to mitigate potential adverse effects. Despite the recognised need for research on self-monitoring of blood pressure (SMBP) among pregnant populations, there are very few studies focused on low and middle income contexts, which carry the greatest burden of HDPs. The study aims to understand the perceptions, barriers, and operational considerations for using a smartphone software application to perform SMBP by pregnant women in Lombok, Indonesia.

METHODS AND ANALYSIS

This study includes a combination of focus group discussions, in-depth interviews and workshop observations. Pregnant women will also be provided with a research version of the smartphone BP application to use in their home and subsequently provide feedback on their experiences. The study will include pregnant women with current or past HDP, their partners and the healthcare workers involved in the provision of antenatal care services within the catchment area of six primary healthcare centres. Data obtained from the interviews and observations will undergo thematic analyses using a combination of both inductive and deductive approaches.

ETHICS AND DISSEMINATION

The study was approved by the World Health Organization (WHO) and Human Reproduction Programme (HRP) Research Project Review Panel and WHO Ethical Review Committee (A65932) as well as the Health Research Ethics Committee, Faculty of Medicine, Universitas Mataram in Indonesia (004/UN18/F7/ETIK/2023).Findings will be disseminated through research publications and communicated to the Lombok district health offices. The analyses from this study will also inform the design of a subsequent impact evaluation.

New advances in prediction and surveillance of preeclampsia: role of machine learning approaches and remote monitoring

Preeclampsia, a multisystem disorder in pregnancy, is still one of the main causes of maternal morbidity and mortality. Due to a lack of a causative therapy, an accurate prediction of women at risk for the disease and its associated adverse outcomes is of utmost importance to tailor care. In the past two decades, there have been successful improvements in screening as well as in the prediction of the disease in high-risk women. This is due to, among other things, the introduction of biomarkers such as the sFlt-1/PlGF ratio. Recently, the traditional definition of preeclampsia has been expanded based on new insights into the pathophysiology and conclusive evidence on the ability of angiogenic biomarkers to improve detection of preeclampsia-associated maternal and fetal adverse events.However, with the widespread availability of digital solutions, such as decision support algorithms and remote monitoring devices, a chance for a further improvement of care arises. Two lines of research and application are promising: First, on the patient side, home monitoring has the potential to transform the traditional care pathway. The importance of the ability to input and access data remotely is a key learning from the COVID-19 pandemic. Second, on the physician side, machine-learning-based decision support algorithms have been shown to improve precision in clinical decision-making. The integration of signals from patient-side remote monitoring devices into predictive algorithms that power physician-side decision support tools offers a chance to further improve care.The purpose of this review is to summarize the recent advances in prediction, diagnosis and monitoring of preeclampsia and its associated adverse outcomes. We will review the potential impact of the ability to access to clinical data via remote monitoring. In the combination of advanced, machine learning-based risk calculation and remote monitoring lies an unused potential that allows for a truly patient-centered care.

Patient and provider perception of home blood pressure monitoring kits

BACKGROUND

Pregnant patients of racial/ethnic minorities have higher preeclampsia rates. Home blood pressure monitoring (HBPM) has been investigated for disparity reduction. Smaller studies showed patients find HBPM to be a helpful intervention postpartum. Further investigation is needed to define the role of HPBM in an at-risk and diverse population antepartum.

OBJECTIVE

To assess patient perception of HBPM among diverse patients at high risk of disease development.

STUDY DESIGN

Prospective study conducted from April 2020-September 2021. HBPM kits were advertised and interested parties across the United States responded. Cuff Kits were then distributed to participating providers. Providers distributed the kits to patients meeting high-risk criteria for disease development, prioritizing those of racial/ethnic minorities. Surveys were distributed quarterly to providers and patients to assess HBPM perception.

RESULTS

2910 Cuff Kits were distributed to patients at 179 sites in 14 states. Of those, 1160 were distributed to Black patients, 1045 to White patients, and 500 to Hispanic patients. 117 patients completed surveys, with most patients finding Cuff Kits "very valuable" or "valuable" (68.4% and 19.7%, respectively). Most providers (73.4%) felt the Cuff Kits influenced patient care.

CONCLUSIONS

Most patients receiving Cuff Kits reported a beneficial impact on disease understanding and most belonged to racial/ethnic groups at higher risk of adverse outcomes. Providers found HBPM had a beneficial impact on care. Though more research is needed to illustrate the impact of HBPM on outcomes, this study suggests that among racial/ethnic minorities and those at the high risk, HBPM is a well-received intervention.

Effect of telehealth-integrated antenatal care on pregnancy outcomes in Australia: an interrupted time-series analysis

BACKGROUND

During the COVID-19 pandemic, rapid integration of telehealth into antenatal care occurred to support ongoing maternity care. A programme of this scale had not been previously implemented. We evaluated whether telehealth-integrated antenatal care in an Australian public health system could achieve pregnancy outcomes comparable to those of conventional care to assess its safety and efficacy.

METHODS

Routinely collected data for individuals who gave birth at Monash Health (Melbourne, VIC, Australia) during a conventional care period (Jan 1, 2018, to March 22, 2020) and telehealth-integrated period (April 20, 2020, to April 25, 2021) were analysed. We included all births that occurred at 20 weeks' gestation or later or with a birthweight of at least 400 g (if duration of gestation was unknown). We excluded multiple births, births for which private antenatal care was received, and births to individuals transferred from other hospitals or who had no antenatal care. Baseline demographics, telehealth uptake, and pregnancy complications (related to pre-eclampsia, fetal growth restriction [FGR], gestational diabetes, stillbirth, neonatal intensive care [NICU] admission, and preterm birth [<37 weeks' gestation]) were compared using comparative statistics and an interrupted time-series analysis. Results were stratified by care stream, with high-risk models consisting of obstetric specialist-led care, and all other streams categorised as low-risk models. The impact of the integrated period on outcomes was also assessed with stratification by parity.

FINDINGS

17 873 births occurred in the conventional period and 8131 in the integrated period. Compared with the conventional period, women giving birth during the integrated period were slightly older (30·63 years vs 30·88 years) and had slightly higher BMI (25·52 kg/m2vs 26·14 kg/m2), and more Australian-born women gave birth during the integrated period (37·37% vs 39·79%). There were no significant differences in smoking status or parity between the two groups. 107 (0·08%) of 129 514 antenatal consultations in the conventional period and 34 444 (45·94%) of 74 982 in the integrated period were delivered by telehealth. No significant differences between the conventional and integrated periods were seen in median gestational age at pre-eclampsia diagnosis (low-risk models 37·4 weeks in the conventional period vs 37·1 weeks in the integrated period, difference -0·3 weeks [-0·7 to 0·1]; high-risk models 35·5 weeks vs 36·3 weeks, difference 0·3 weeks [-0·3 to 1·1]), incidence of FGR below the 3rd birthweight percentile (low-risk models 1·62% vs 1·74%, difference 0·12 percentage points [-0·26 to 0·50]; high-risk 4·04% vs 4·13%, difference 0·089 percentage points [-1·08 to 1·26]), and incidence of preterm birth (low-risk models 4·99% vs 5·01%, difference 0·02% [-0·62 to 0·66]; high-risk models 15·76% vs 14·43%, difference -1·33% [-3·42 to 0·77]). Parity did not affect these findings. Interrupted time-series analysis showed a significant reduction in induction of labour for singletons with suspected FGR among women in low-risk models during the integrated period (-0·04% change per week [95% CI -0·07 to -0·01], p=0·0040), and NICU admission declined after telehealth integration (low-risk models -0·02% change per week [-0·03 to -0·003], p=0·018; high-risk models -0·10% change per week, -0·19 to -0·001; p=0·047). No significant differences in stillbirth rates were observed. The proportion of women diagnosed with gestational diabetes was significantly higher in the integrated period compared with the conventional period for both low-risk care models (22·28% vs 25·13%, difference 2·85 percentage points [1·60 to 4·11]) and high-risk care models (28·70% vs 34·02%, difference 5·32 percentage points [2·57 to 8·07]). However overall, when compared with the conventional period, there was no significant difference in proportion of women with gestational diabetes requiring insulin therapy (low-risk models 8·08% vs 7·73%, difference -0·35 percentage points [-1·13 vs 0·44]; high-risk models 14·81% vs 15·71%, difference 0·89 percentage points [-1·23 to 3·02]), or proportion of women with gestational diabetes who gave birth to a baby with macrosomia in the integrated period (low-risk models 3·16% vs 2·33%, difference -0·83 percentage points [-1·77 to 0·12]; high-risk models 5·58% vs 4·81%, difference -0·77 percentage points [-3·06 to 1·52]).

INTERPRETATION

Telehealth-integrated antenatal care replaced around 46% of in-person consultations without compromising pregnancy outcomes. It might be associated with a reduction in labour induction for suspected FGR, particularly for women in low-risk models, without compromising FGR detection or perinatal morbidity. These findings support the ongoing use of telehealth in providing flexible antenatal care.

FUNDING

None.

Routine Prenatal Care

The one-size-fits-all model of prenatal care has remained largely unchanged since 1930. New models of prenatal care delivery can improve its efficacy, equity, and experience through tailoring prenatal care to meet pregnant people's medical and social needs. Key aspects of recently developed prenatal care models include visit schedules based on needed services, telemedicine, home measurement of routine pregnancy parameters, and interventions that address social and structural drivers of health. Several barriers that affect the individual, provider, health system, and policy levels must be addressed to facilitate implementation of new prenatal care delivery models.

Prediction and prevention of preeclampsia in women with preexisting diabetes: the role of home blood pressure, physical activity, and aspirin

Women with type 1 or type 2 (preexisting) diabetes are four times more likely to develop preeclampsia compared with women without diabetes. Preeclampsia affects 9%-20% of pregnant women with type 1 diabetes and 7%-14% of pregnant women with type 2 diabetes. The aim of this narrative review is to investigate the role of blood pressure (BP) monitoring, physical activity, and prophylactic aspirin to reduce the prevalence of preeclampsia and to improve pregnancy outcome in women with preexisting diabetes. Home BP and office BP in early pregnancy are positively associated with development of preeclampsia, and home BP and office BP are comparable for the prediction of preeclampsia in women with preexisting diabetes. However, home BP is lower than office BP, and the difference is greater with increasing office BP. Daily physical activity is recommended during pregnancy, and limiting sedentary behavior may be beneficial to prevent preeclampsia. White coat hypertension in early pregnancy is not a clinically benign condition but is associated with an elevated risk of developing preeclampsia. This renders the current strategy of leaving white coat hypertension untreated debatable. A beneficial preventive effect of initiating low-dose aspirin (150 mg/day) for all in early pregnancy has not been demonstrated in women with preexisting diabetes.

Ability and accuracy of patient-performed blood pressure monitoring among pregnant women in urban Ghana

BACKGROUND

Patient-performed blood pressure monitoring in pregnancy is rarely performed in low- and middle-income country settings, including Ghana. The clinical efficacy of home blood pressure monitoring relies on a pregnant patient being able to independently execute the correct steps to position and use a blood pressure monitor and to achieve accurate blood pressure measurements.

OBJECTIVE

This study aimed to (1) assess whether pregnant women can correctly use an automatic blood pressure monitor to check their blood pressure before and after a brief training and (2) determine whether blood pressure values measured by pregnant women using an automatic monitor are similar to values measured by a healthcare provider using a standard clinic monitor.

STUDY DESIGN

This was a cross-sectional study conducted at the Korle Bu Teaching Hospital, a tertiary hospital in Accra, Ghana. Participants were adult pregnant women presenting for their first prenatal care visit. Data collection was performed by 2 Ghanaian physicians. Information on demographics, obstetrical history, and past medical history was collected. A brief training was provided on the correct use of the blood pressure monitor, including a verbal script, annotated photographs, and a hands-on demonstration. Pre- and posttraining assessments using a 9-item checklist of correct preparation, position, and use of an automatic blood pressure monitor were performed. Following a modified British Hypertension Society protocol, a series of 4 blood pressure measurements were taken, alternating between provider performed using a clinic monitor and patient performed using an automatic monitor intended for individual use and validated in pregnancy.

RESULTS

Among 176 participants, the mean age was 31.5 years (±5.6), and 130 (73.9%) were multiparous. Regarding socioeconomic characteristics, 128 (72.7%) were married, 171 (97.2%) had public insurance, and 87 (49.7%) had completed ≤9 years of formal education. Regarding clinical blood pressure issues, 19 (10.9%) had a history of a hypertensive disorder in a previous pregnancy, and 6 (3.4%) had chronic hypertension. Before receiving any training, 21 participants (12.1%) performed all 9 steps correctly to prepare, position, and use the automatic blood pressure monitor. Comparing pretraining vs posttraining ability, statistically significant increases were seen in the correct performance of each step and the mean number of steps performed correctly (6.1±1.8 vs 9.0±0.2, respectively; P<.001) and proportion performing all 9 steps correctly (12.1% vs 96.6%, respectively; P<.001). The mean difference between doctor-performed and patient-performed blood pressure measurements was 5.6±4.8 mm Hg for systolic blood pressure values and 3.4±3.08 mm Hg for diastolic blood pressure values, with most differences within 5 mm Hg for both systolic blood pressure values (102/176 [58.0%]) and diastolic blood pressure values (141/176 [80.1%]).

CONCLUSION

After a brief training, pregnant women in Ghana demonstrated that they are able to use an automatic blood pressure monitor to check their blood pressure correctly and accurately.

An evaluation of the efficacy and the safety of home blood pressure monitoring in the control of hypertensive disorders of pregnancy in both pre and postpartum periods: a systematic review and meta-analysis

BACKGROUND

Hypertensive disorders of pregnancy (HDP) can significantly impact maternal, neonatal, and fetal health. For controlling these disorders, frequent blood pressure measurements are required. Home blood pressure monitoring (HBPM) is a suggested alternative to conventional office monitoring that requires frequent visits. This systematic review was conducted to evaluate the efficacy and safety of HBPM in the control of HDP.

METHODS

We systematically conducted databases search for relevant studies in June 2022. The relevant studies were identified, and qualitative synthesis was performed. An inverse variance quantitative synthesis was conducted using RevMan software. Continuous outcome data were pooled as means differences, whereas dichotomous ones were summarized as risk ratios. The 95% confidence interval was the measure of variance.

RESULTS

Fifteen studies were included in our review (n = 5335). Our analysis revealed a superiority of HBPM in reducing the risk of induction of labor, and postpartum readmission (P = 0.02, and 0.01 respectively). Moreover, the comparison of birth weights showed a significant variation in favor of HBPM (P = 0.02). In the analysis of other outcomes, HBPM was equally effective as office monitoring. Furthermore, HBPM did not result in an elevated risk of maternal, neonatal, and fetal adverse outcomes.

CONCLUSION

Home monitoring of blood pressure showed superiority over office monitoring in some outcomes and equal efficacy in other outcomes.

Telehealth in the Prenatal and Postpartum Periods

The range and use of telehealth technologies in the prenatal and postpartum periods have exploded since the COVID-19 pandemic. Many of the previous barriers to telehealth have been temporarily removed, which allows for the evaluation of new flexible care models and research on telehealth applications to address pressing clinical outcomes. But what will happen if these exceptions expire? In this column, I describe the scope of telehealth technologies in the prenatal and postpartum periods, the policy changes that have contributed to this growth, and research findings and recommendations from professional organizations that support the integration of telehealth into maternity care.

Remote blood pressure monitoring in high risk pregnancy - study protocol for a randomised controlled trial (REMOTE CONTROL trial)

BACKGROUND

Pregnant women at high risk for developing a hypertensive disorder of pregnancy require frequent antenatal assessments, especially of their blood pressure. This expends significant resources for both the patient and healthcare system. An alternative to in-clinic assessments is a remote blood pressure monitoring strategy, in which patients self-record their blood pressure at home using a validated blood pressure machine. This has the potential to be cost-effective, increase patient satisfaction, and reduce outpatient visits, and has had widespread uptake recently given the increased need for remote care during the ongoing COVID-19 pandemic. However robust evidence supporting this approach over a traditional face-to-face approach is lacking, and the impact on maternal and foetal outcomes has not yet been reported. Thus, there is an urgent need to assess the efficacy of remote monitoring in pregnant women at high risk of developing a hypertensive disorder of pregnancy.

METHODS

The REMOTE CONTROL trial is a pragmatic, unblinded, randomised controlled trial, which aims to compare remote blood pressure monitoring in high-risk pregnant women with conventional face-to-face clinic monitoring, in a 1:1 allocation ratio. The study will recruit patients across 3 metropolitan Australian teaching hospitals and will evaluate the safety, cost-effectiveness, impact on healthcare utilisation and end-user satisfaction of remote blood pressure monitoring.

DISCUSSION

Remote blood pressure monitoring is garnering interest worldwide and has been increasingly implemented following the COVID-19 pandemic. However, robust data regarding its safety for maternofoetal outcomes is lacking. The REMOTE CONTROL trial is amongst the first randomised controlled trials currently underway, powered to evaluate maternal and foetal outcomes. If proven to be as safe as conventional clinic monitoring, major potential benefits include reducing clinic visits, waiting times, travel costs, and improving delivery of care to vulnerable populations in rural and remote communities.

TRIAL REGISTRATION

The trial has been prospectively registered with the Australian and New Zealand Clinical Trials Registry (ACTRN12620001049965p, on October 11th, 2020).

Postpartum Home Blood Pressure Monitoring Program: Improving Care for Hypertension During Postpartum after a Hospital Birth

BACKGROUND AND SIGNIFICANCE

Hypertensive disorders of pregnancy complicate about 10% of pregnancies and are a leading cause of maternal morbidity and mortality.

PURPOSE

The purpose of this quality improvement project was to evaluate a program to provide a home blood pressure monitor to all postpartum patients who had a hypertensive diagnosis and elevated blood pressure.

METHODS

The program includes a blood pressure monitor, instructions for its use, education about hypertension, and a guidance grid with standardized blood pressure parameters reviewed prior to discharge from the hospital. Patients are taught about potential adverse outcomes during postpartum. Patients are instructed to follow-up with their care provider based on the parameters. A retrospective medical record review was used to evaluate clinical outcomes.

RESULTS

Medical records of 185 patients indicated that 20% ( n = 36) who received the home BP monitor reported one or more mild-to-severe range blood pressure(s) during postpartum. Twenty-eight percent ( n = 52) had outpatient medication adjustments, including decreasing, increasing, starting, and discontinuing medications. Nine percent ( n = 17) of patients returned to the obstetric triage for evaluation. There was patient overlap between those experiencing elevated blood pressures, medication adjustments, and those who returned to hospital for evaluation.

CLINICAL IMPLICATIONS

Ongoing monitoring may improve identification and management of postpartum hypertension and potentially prevent progression to hypertensive-related adverse events.

Maternal and perinatal outcomes in mixed antenatal care modality implementing telemedicine in the southwestern region of Colombia during the COVID-19 pandemic

INTRODUCTION

Contingency measures due to the COVID-19 pandemic limited access to routine prenatal care for pregnant women, increasing the risk of pregnancy complications due to poor prenatal follow-up, especially in those patients at high obstetric risk. This prompted the implementation and adaptation of telemedicine.

OBJECTIVE

We aim to evaluate the maternal and perinatal outcomes of patients who received prenatal care in-person and by telemedicine.

METHODS

We conducted a retrospective observational cohort study of pregnant women who received exclusive in-person and alternate (telemedicine and in-person) care from March to December 20,202, determining each group's maternal and neonatal outcomes.

RESULTS

A total of 1078 patients were included, 156 in the mixed group and 922 in the in-person group. The patients in the mixed group had a higher number of prenatal controls (8 (6-9) vs 6 (4-8) p < 0.001), with an earlier gestational age at onset (7.1 (6-8.5) vs 9.3 (6.6-20.3), p < 0.001), however, they required a longer hospital stay (26 (16,67%) vs 86 (9,33%), p = 0.002) compared to those attended in-person; there were no significant differences in the development of obstetric emergencies, maternal death or neonatal complications.

DISCUSSION

Incorporating telemedicine mixed with in-person care could be considered as an alternative for antenatal follow-up of pregnant women in low- and middle-income countries with barriers to timely and quality health care access.

Society for Maternal-Fetal Medicine Special Statement: Telemedicine in obstetrics-quality and safety considerations

The frequency of telemedicine encounters has increased dramatically in recent years. This review summarizes the literature regarding the safety and quality of telemedicine for pregnancy-related services, including prenatal care, postpartum care, diabetes mellitus management, medication abortion, lactation support, hypertension management, genetic counseling, ultrasound examination, contraception, and mental health services. For many of these, telemedicine has several potential or proven benefits, including expanded patient access, improved patient satisfaction, decreased disparities in care delivery, and health outcomes at least comparable to those of traditional in-person encounters. Considering these benefits, it is suggested that payers should reimburse providers at least as much for telemedicine as for in-person services. Areas for future research are considered.

Effectiveness of Remote Fetal Monitoring on Maternal-Fetal Outcomes: Systematic Review and Meta-Analysis

BACKGROUND

To solve the disadvantages of traditional fetal monitoring such as time-consuming, cumbersome steps and low coverage, it is paramount to develop remote fetal monitoring. Remote fetal monitoring expands time and space, which is expected to popularize fetal monitoring in remote areas with the low availability of health services. Pregnant women can transmit fetal monitoring data from remote monitoring terminals to the central monitoring station so that doctors can interpret it remotely and detect fetal hypoxia in time. Fetal monitoring involving remote technology has also been carried out, but with some conflicting results.

OBJECTIVE

The review aimed to (1) examine the efficacy of remote fetal monitoring in improving maternal-fetal outcomes and (2) identify research gaps in the field to make recommendations for future research.

METHODS

We did a systematic literature search with PubMed, Cochrane Library, Web of Science, Embase, MEDLINE, CINAHL, ProQuest Dissertations and Theses Global, ClinicalTrials.gov, and Open Grey in March 2022. Randomized controlled trials or quasi-experimental trials of remote fetal monitoring were identified. Two reviewers independently searched articles, extracted data, and assessed each study. Primary outcomes (maternal-fetal outcomes) and secondary outcomes (health care usage) were presented as relative risks or mean difference. The review was registered on PROSPERO as CRD42020165038.

RESULTS

Of the 9337 retrieved literature, 9 studies were included in the systematic review and meta-analysis (n=1128). Compared with a control group, remote fetal monitoring reduced the risk of neonatal asphyxia (risk ratio 0.66, 95% CI 0.45-0.97; P=.04), with a low heterogeneity of 24%. Other maternal-fetal outcomes did not differ significantly between remote fetal monitoring and routine fetal monitoring, such as cesarean section (P=.21; I2=0%), induced labor (P=.50; I2=0%), instrumental vaginal birth (P=.45; I2=0%), spontaneous delivery (P=.85; I2=0%), gestational weeks at delivery (P=.35; I2=0%), premature delivery (P=.47; I2=0%), and low birth weight (P=.71; I2=0%). Only 2 studies performed a cost analysis, stating that remote fetal monitoring can contribute to reductions in health care costs when compared with conventional care. In addition, remote fetal monitoring might affect the number of visits and duration in the hospital, but it was not possible to draw definite conclusions about the effects due to the limited number of studies.

CONCLUSIONS

Remote fetal monitoring seems to reduce the incidence of neonatal asphyxia and health care costs compared with routine fetal monitoring. To strengthen the claims on the efficacy of remote fetal monitoring, further well-designed studies are necessary, especially in high-risk pregnant women, such as pregnant women with diabetes, pregnant women with hypertension, and so forth.

Postpartum Care in the Time of COVID-19: The Use of Telemedicine for Postpartum Care

Background: Telemedicine was implemented at our institution in response to the COVID-19 pandemic. Data do not currently exist about the use of telemedicine in providing comprehensive postpartum care. Objective: This project aimed to evaluate the impact of telemedicine on postpartum care at an urban Federally Qualified Health Center (FQHC). Study Design: This was a retrospective cohort study of patients who delivered at an urban hospital in New York between September and November 2019 (pre-COVID), February through April 2020 (peak-COVID) and June through August 2020 (ongoing-COVID). The primary outcome was postpartum visit attendance. Secondary outcomes included contraception use, breastfeeding, depression screening, hospital readmission, and emergency department visit rates. Log-binomial regression models were used to estimate relative risk. Results: Telemedicine accounted for 1% of postpartum visits in the pre-COVID cohort, 60% in the peak-COVID cohort, and 48% in the ongoing-COVID cohort. Postpartum visit attendance rates were 52% in the pre-COVID cohort, 43% in the peak-COVID cohort, and 56% in the ongoing-COVID cohort (p > 0.05). There was a nonsignificant increase in postpartum visit show rate for telemedicine visits compared to in-person visits in the peak-COVID cohort (76% vs. 65%; relative risk [RR] 1.17 [0.87-1.57]) and ongoing-COVID cohort (85% vs. 74%; RR 1.16 [0.90-1.50]). Patients were significantly less likely to have a Patient Health Questionnaire-2 Depression screen in the peak-COVID and ongoing-COVID cohorts (22% and 33%) than in the pre-COVID cohort (74%) (p < 0.01). There were no significant differences in hospital readmissions, contraceptive use or breastfeeding rates across cohorts (p > 0.05). Conclusions: At our urban FQHC, telemedicine was comparable to in-person postpartum care in terms of attendance rates during the COVID-19 pandemic, without an increase in rates of hospital visits or readmissions. However, postpartum depression screening needs to be better integrated into the telemedicine visit type.

Benefits and barriers of home blood pressure monitoring in pregnancy: perspectives of obstetric doctors from a Ghanaian tertiary hospital

BACKGROUND

Delayed diagnosis of preeclampsia contributes to maternal morbidity and mortality. Patient-performed home blood pressure monitoring facilitates more frequent monitoring and earlier diagnosis. However, challenges may exist to implementation in low- and middle income-countries.

METHODS

This cross-sectional mixed methods study evaluated obstetric doctors' perspectives on the benefits of and barriers to the implementation of home blood pressure monitoring among pregnant women in Ghana. Participants were doctors providing obstetric care at Korle Bu Teaching Hospital. Electronic surveys were completed by 75 participants (response rate 49.3%), consisting of demographics and questions on attitudes and perceived benefits and challenges of home BP monitoring. Semi-structured interviews were completed by 22 participants to expand on their perspectives.

RESULTS

Quantitative and qualitative results converged to highlight that the current state of blood pressure monitoring among pregnant women in Ghana is inadequate. The majority agreed that delayed diagnosis of preeclampsia leads to poor health outcomes in their patients (90.6%, n = 68) and earlier detection would improve outcomes (98.7%, n = 74). Key qualitative benefits to the adoption of home blood pressure monitoring were patient empowerment and trust of diagnosis, more quantity and quality of blood pressure data, and improvement in systems-level efficiency. The most significant barriers were the cost of monitors, lack of a communication system to convey abnormal values, and low health literacy. Overall, doctors felt that most barriers could be overcome with patient education and counseling, and that benefits far outweighed barriers. The majority of doctors (81.3%, n = 61), would use home BP data to inform their clinical decisions and 89% (n = 67) would take immediate action based on elevated home BP values. 91% (n = 68) would recommend home BP monitoring to their pregnant patients.

CONCLUSION

Obstetric doctors in Ghana strongly support the implementation of home blood pressure monitoring, would use values to inform their clinical management, and believe it would improve patient outcomes. Addressing the most significant barriers, including cost of blood pressure monitors, lack of a communication system to convey abnormal values, and need for patient education, is essential for successful implementation.

Self-monitoring of blood pressure in pregnancy: A mixed methods evaluation of a national roll-out in the context of a pandemic

Objective

To evaluate how English maternity units implemented self-monitoring of blood pressure (SMBP) in pregnancy in response to the COVID-19 pandemic.

Design

Mixed methods including surveys, anonymised patient data and in-depth interviews with women.

Setting

Maternity units across England.

Participants

45 maternity units completed a survey about the implementation of SMBP (supported by the provision of guidance and blood pressure monitors) during the pandemic, 166 women completed a survey about their experiences of SMBP, and 23 women took part in in-depth interviews. Clinical data from 627 women undertaking SMBP were available from 13 maternity units.

Results

SMBP was predominantly used to provide additional BP monitoring for hypertensive or high-risk pregnant women. Overall maternity units and women were positive about its use in terms of reducing the need for additional face-to-face contacts and giving women more control and insight into their own BP. However, there were challenges in setting up SMBP services rapidly and embedding them within existing care pathways, particularly around interpreting readings and managing the provision of monitors.

Conclusions

A considerable proportion of maternity units in England commenced a SMBP service for hypertensive or high-risk women from March 2020. There is a need for further research into appropriate care pathways, including guidance around white coat or masked hypertension and the use of SMBP postnatally.

Preeclampsia: a report and recommendations of the workshop of the Society for Maternal-Fetal Medicine and the Preeclampsia Foundation

Preeclampsia is a substantial cause of perinatal and maternal morbidity and mortality. The prevalence of this condition has increased over the past several decades. Additional opportunities are needed to foster interdisciplinary collaborations and improve patient care in the setting of preeclampsia. In recognition of the Preeclampsia Foundation's 20th anniversary and its work to advance preeclampsia research and clinical agendas, a 2-day virtual workshop on preeclampsia was cosponsored by the Society for Maternal-Fetal Medicine and the Preeclampsia Foundation and held January 25-26, 2021 in conjunction with the 41st annual pregnancy meeting. Leaders with expertise in preeclampsia research, obstetrical care, primary care medicine, cardiology, endocrinology, global health, and patient advocacy gathered to discuss preeclampsia prediction, prevention, management, and long-term impacts. The goals of the workshop were to review the following issues and create consensus concerning research and clinical recommendations: This report, developed collaboratively between the SMFM and the Preeclampsia Foundation, presents the key findings and consensus-based recommendations from the workshop participants.

An Opportunity to Better Address Hypertension in Women: Self-Measured Blood Pressure Monitoring

More than 56 million women in the United States have hypertension, including almost one in five women of reproductive age. The prevalence of hypertensive disorders of pregnancy is on the rise, putting more women at risk for adverse pregnancy-related outcomes and atherosclerotic cardiovascular disease later in life. Hypertension can be better detected and controlled in women throughout their life course by supporting self-measured blood pressure monitoring. In this study, we present some potential strategies for strengthening our nation's ability to address hypertension in women focusing on pregnancy-related considerations for self-measured blood pressure monitoring.

Home Blood Pressure for the Prediction of Preeclampsia in Women With Preexisting Diabetes

CONTEXT

Outside of pregnancy, home blood pressure (BP) has been shown to be superior to office BP for predicting cardiovascular outcomes.

OBJECTIVE

This work aimed to evaluate home BP as a predictor of preeclampsia in comparison with office BP in pregnant women with preexisting diabetes.

METHODS

A prospective cohort study was conducted of 404 pregnant women with preexisting diabetes; home BP and office BP were measured in early (9 weeks) and late pregnancy (35 weeks). Discriminative performance of home BP and office BP for prediction of preeclampsia was assessed by area under the receiver operating characteristic curves (AUC).

RESULTS

In total 12% (n = 49/404) developed preeclampsia. Both home BP and office BP in early pregnancy were positively associated with the development of preeclampsia (adjusted odds ratio (95% CI) per 5 mm Hg, systolic/diastolic): home BP 1.43 (1.21-1.70)/1.74 (1.34-2.25) and office BP 1.22 (1.06-1.40)/1.52 (1.23-1.87). The discriminative performance for prediction of preeclampsia was similar for early-pregnancy home BP and office BP (systolic, AUC 69.3 [61.3-77.2] vs 64.1 [55.5-72.8]; P = .21 and diastolic, AUC 68.6 [60.2-77.0] vs 66.6 [58.2-75.1]; P = .64). Similar results were seen when comparing AUCs in late pregnancy (n = 304). In early and late pregnancy home BP was lower than office BP (early pregnancy P < .0001 and late pregnancy P < .01 for both systolic and diastolic BP), and the difference was greater with increasing office BP.

CONCLUSION

In women with preexisting diabetes, home BP and office BP were positively associated with the development of preeclampsia, and for the prediction of preeclampsia home BP and office BP were comparable.

Implementing a self-monitoring application during pregnancy and postpartum for rural and underserved women: A qualitative needs assessment study

Background

Georgia has one of the highest maternal mortality rates within the US. This study describes the qualitative needs assessment undertaken to understand the needs of rural and underserved women and their perspectives on implementing a self monitoring application during pregnancy and postpartum.

Methods

Qualitative methodology was used to conduct the needs assessment of 12 health care providers (nurses, nurse-midwives, patient care coordinators, and physicians) and 25 women from rural and underserved populations in Georgia was conducted to ascertain common themes on three topics: pregnancy care experiences, comfort with technology, and initial perspectives on the proposed VidaRPM application. Transcription, coding, and consensus were conducted using content analysis and a Cohen’s Kappa coefficient was calculated to identify level of overall agreement between raters for the representative quotes identified for each theme.

Results

The overall agreement for the representative quotes that were chosen for each theme was in strong agreement (κ = 0.832). The major provider feedback included the following regarding the VidaRPM app: inclusion of questions to monitor physical well-being, embedded valid and reliable educational resources, and multiple modalities. The overall feedback from the mothers regarding the VidaRPM application was the virtual aspect helped overcome the barriers to accessing care, comfort with both WiFi and technology, and sustainable utility.

Discussion

The needs of rural and underserved pregnant women and their providers were assessed to develop and refine the VidaRPM app. This qualitative study on the VidaRPM app is the first step towards closing the gap between providers and patients during prenatal and postpartum periods by empowering and educating women into the first-year postpartum living in rural and underserved areas.

Hypertensive disorders of pregnancy: definition, management, and out-of-office blood pressure measurement

Hypertensive disorders of pregnancy increase the risk of adverse maternal and fetal outcomes. In 2018, the Japanese classification of hypertensive disorders of pregnancy was standardized with those of other countries, and a hypertensive disorder of pregnancy was considered to be present if hypertension existed during pregnancy and up to 12 weeks after delivery. Strategies for the prevention of hypertensive disorders of pregnancy have become much clearer, but further research is needed on appropriate subjects and methods of administration, and these have not been clarified in Japan. Although guidelines for the use of antihypertensive drugs are also being studied and standardized with those of other countries, the use of calcium antagonists before 20 weeks of gestation is still contraindicated in Japan because of the safety concerns that were raised regarding possible fetal anomalies associated with their use at the time of their market launch. Chronic hypertension is now included in the definition of hypertensive disorders of pregnancy, and blood pressure measurement is a fundamental component of the diagnosis of hypertensive disorders of pregnancy. Out-of-office blood pressure measurements, including ambulatory and home blood pressure measurements, are important for pregnant and nonpregnant women. Although conditions such as white-coat hypertension and masked hypertension have been reported, determining their occurrence in pregnancy is complicated by the gestational week. This narrative review focused on recent reports on hypertensive disorders of pregnancy, including those related to blood pressure measurement and classification.

Self-monitoring of blood pressure among women with hypertensive disorders of pregnancy: a systematic review

BACKGROUND

The World Health Organization (WHO) recommends self-monitoring of blood pressure (SMBP) for hypertension management. In addition, during the COVID-19 response, WHO guidance also recommends SMBP supported by health workers although more evidence is needed on whether SMBP of pregnant individuals with hypertension (gestational hypertension, chronic hypertension, or pre-eclampsia) may assist in early detection of pre-eclampsia, increase end-user autonomy and empowerment, and reduce health system burden. To expand the evidence base for WHO guideline on self-care interventions, we conducted a systematic review of SMBP during pregnancy on maternal and neonatal outcomes.

METHODS

We searched for publications that compared SMBP with clinic-based monitoring during antenatal care. We included studies measuring any of the following outcomes: maternal mortality, pre-eclampsia, long-term risk and complications, autonomy, HELLP syndrome, C-section, antenatal hospital admission, adverse pregnancy outcomes, device-related issues, follow-up care with appropriate management, mental health and well-being, social harms, stillbirth or perinatal death, birthweight/size for gestational age, and Apgar score. After abstract screening and full-text review, we extracted data using standardized forms and summarized findings. We also reviewed studies assessing values and preferences as well as costs of SMBP.

RESULTS

We identified 6 studies meeting inclusion criteria for the effectiveness of SMBP, 6 studies on values and preferences, and 1 study on costs. All were from high-income countries. Overall, when comparing SMBP with clinic-monitoring, there was no difference in the risks for most of the outcomes for which data were available, though there was some evidence of increased risk of C-section among pregnant women with chronic hypertension. Most end-users and providers supported SMBP, motivated by ease of use, convenience, self-empowerment and reduced anxiety. One study found SMBP would lower health sector costs.

CONCLUSION

Limited evidence suggests that SMBP during pregnancy is feasible and acceptable, and generally associated with maternal and neonatal health outcomes similar to clinic-based monitoring. However, more research is needed in resource-limited settings.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO CRD42021233839 .

Effect of Self-monitoring of Blood Pressure on Diagnosis of Hypertension During Higher-Risk Pregnancy: The BUMP 1 Randomized Clinical Trial

Importance

Inadequate management of elevated blood pressure (BP) is a significant contributing factor to maternal deaths. Self-monitoring of BP in the general population has been shown to improve the diagnosis and management of hypertension; however, little is known about its use in pregnancy.

Objective

To determine whether self-monitoring of BP in higher-risk pregnancies leads to earlier detection of pregnancy hypertension.

Design, Setting, and Participants

Unblinded, randomized clinical trial that included 2441 pregnant individuals at higher risk of preeclampsia and recruited at a mean of 20 weeks' gestation from 15 hospital maternity units in England between November 2018 and October 2019. Final follow-up was completed in April 2020.

Interventions

Participating individuals were randomized to either BP self-monitoring with telemonitoring (n = 1223) plus usual care or usual antenatal care alone (n = 1218) without access to telemonitored BP.

Main Outcomes and Measures

The primary outcome was time to first recorded hypertension measured by a health care professional.

Results

Among 2441 participants who were randomized (mean [SD] age, 33 [5.6] years; mean gestation, 20 [1.6] weeks), 2346 (96%) completed the trial. The time from randomization to clinic recording of hypertension was not significantly different between individuals in the self-monitoring group (mean [SD], 104.3 [32.6] days) vs in the usual care group (mean [SD], 106.2 [32.0] days) (mean difference, -1.6 days [95% CI, -8.1 to 4.9]; P = .64). Eighteen serious adverse events were reported during the trial with none judged as related to the intervention (12 [1%] in the self-monitoring group vs 6 [0.5%] in the usual care group).

Conclusions and Relevance

Among pregnant individuals at higher risk of preeclampsia, blood pressure self-monitoring with telemonitoring, compared with usual care, did not lead to significantly earlier clinic-based detection of hypertension.

Trial Registration

ClinicalTrials.gov Identifier: NCT03334149.

Directive clinique no 426 : Troubles hypertensifs de la grossesse : Diagnostic, prédiction, prévention et prise en charge

OBJECTIF

La présente directive a été élaborée par des fournisseurs de soins de maternité en obstétrique et en médecine interne. Elle aborde le diagnostic, l'évaluation et la prise en charge des troubles hypertensifs de la grossesse, la prédiction et la prévention de la prééclampsie ainsi que les soins post-partum des femmes avec antécédent de trouble hypertensif de la grossesse.

POPULATION CIBLE

Femmes enceintes. BéNéFICES, RISQUES ET COûTS: La mise en œuvre des recommandations de la présente directive devrait réduire l'incidence des troubles hypertensifs de la grossesse, en particulier la prééclampsie, et des issues défavorables associées. DONNéES PROBANTES: La revue exhaustive de la littérature a été mise à jour en tenant compte des nouvelles données probantes jusqu'en décembre 2020 et en suivant la même méthodologie que pour la précédente directive de la Société des obstétriciens et gynécologues du Canada (SOGC) sur les troubles hypertensifs de la grossesse. La recherche s'est limitée aux articles publiés en anglais ou en français. Les recommandations relatives aux traitements s'appuient d'abord sur les essais cliniques randomisés et les revues systématiques (lorsque disponibles), ainsi que sur l'évaluation des résultats cliniques substantiels chez les mères et les bébés. MéTHODES DE VALIDATION: Les auteurs se sont entendus sur le contenu et les recommandations par consensus et ont répondu à l'examen par les pairs du comité de médecine fœto-maternelle de la SOGC. Les auteurs ont évalué la qualité des données probantes et la force des recommandations en utilisant le cadre méthodologique d'évaluation, de développement et d'évaluation (GRADE) et se sont gardé l'option de désigner certaines recommandations par la mention « bonne pratique ». Voir l'annexe A en ligne (tableau A1 pour les définitions et tableau A2 pour l'interprétation des recommandations fortes et conditionnelles [faibles]). Le conseil d'administration de la SOGC a approuvé la version définitive aux fins de publication.

PROFESSIONNELS CIBLES

Tous les fournisseurs de soins de santé (obstétriciens, médecins de famille, sages-femmes, infirmières et anesthésistes) qui prodiguent des soins aux femmes avant, pendant ou après la grossesse.

RECOMMANDATIONS

Guideline No. 426: Hypertensive Disorders of Pregnancy: Diagnosis, Prediction, Prevention, and Management

OBJECTIVE

This guideline was developed by maternity care providers from obstetrics and internal medicine. It reviews the diagnosis, evaluation, and management of the hypertensive disorders of pregnancy (HDPs), the prediction and prevention of preeclampsia, and the postpartum care of women with a previous HDP.

TARGET POPULATION

Pregnant women.

BENEFITS, HARMS, AND COSTS

Implementation of the recommendations in these guidelines may reduce the incidence of the HDPs, particularly preeclampsia, and associated adverse outcomes.

EVIDENCE

A comprehensive literature review was updated to December 2020, following the same methods as for previous Society of Obstetricians and Gynaecologists of Canada (SOGC) HDP guidelines, and references were restricted to English or French. To support recommendations for therapies, we prioritized randomized controlled trials and systematic reviews (if available), and evaluated substantive clinical outcomes for mothers and babies.

VALIDATION METHODS

The authors agreed on the content and recommendations through consensus and responded to peer review by the SOGC Maternal Fetal Medicine Committee. The authors rated the quality of evidence and strength of recommendations using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach, along with the option of designating a recommendation as a "good practice point." See online Appendix A (Tables A1 for definitions and A2 for interpretations of strong and conditional [weak] recommendations).The Board of the SOGC approved the final draft for publication.

INTENDED USERS

All health care providers (obstetricians, family doctors, midwives, nurses, and anesthesiologists) who provide care to women before, during, or after pregnancy.

RECOMMENDATIONS

Need for Better and Broader Training in Cardio-Obstetrics: A National Survey of Cardiologists, Cardiovascular Team Members, and Cardiology Fellows in Training

Background Team-based models of cardio-obstetrics care have been developed to address the increasing rate of maternal mortality from cardiovascular diseases. Cardiovascular clinician and trainee knowledge and comfort with this topic, and the extent of implementation of an interdisciplinary approach to cardio-obstetrics, are unknown. Methods and Results We aimed to assess the current state of cardio-obstetrics knowledge, practices, and services provided by US cardiovascular clinicians and trainees. A survey developed in conjunction with the American College of Cardiology was circulated to a representative sample of cardiologists (N=311), cardiovascular team members (N=51), and fellows in training (N=139) from June 18, 2020, to July 29, 2020. Knowledge and attitudes about the provision of cardiovascular care to pregnant patients and the prevalence and composition of cardio-obstetrics teams were assessed. The widest knowledge gaps on the care of pregnant compared with nonpregnant patients were reported for medication safety (42%), acute coronary syndromes (39%), aortopathies (40%), and valvular heart disease (30%). Most respondents (76%) lack access to a dedicated cardio-obstetrics team, and only 29% of practicing cardiologists received cardio-obstetrics didactics during training. One third of fellows in training reported seeing pregnant women 0 to 1 time per year, and 12% of fellows in training report formal training in cardio-obstetrics. Conclusions Formalized training in cardio-obstetrics is uncommon, and limited access to multidisciplinary cardio-obstetrics teams and large knowledge gaps exist among cardiovascular clinicians. Augmentation of cardio-obstetrics education across career stages is needed to reduce these deficits. These survey results are an initial step toward developing a standard expectation for clinicians' training in cardio-obstetrics.

Prescribing for pregnancy: chronic hypertension

An increasing number of women who become pregnant have pre-existing hypertension. For this group of women, a proportion will develop pre-eclampsia or severe hypertension which can impact on maternal and fetal well-being. Women with raised blood pressure should be offered reliable contraception when they do not wish to conceive and pre-conception counselling to address pregnancy-related concerns and advice on preparation for pregnancy and the use of medicines. For women with a history of hypertension, the smallest number of safe medicines at the lowest effective doses should be used while preparing for and during pregnancy. This article forms part of the series of prescribing for pregnancy and discusses the impact of hypertension on pregnancy, the impact of pregnancy on hypertension and options for treatment.

Toward personalized management of chronic hypertension in pregnancy

Chronic hypertension complicates 1% to 2% of pregnancies, and it is increasingly common. Women with chronic hypertension are an easily recognized group who are in touch with a wide variety of healthcare providers before, during, and after pregnancy, mandating that chronic hypertension in pregnancy be within the scope of many practitioners. We reviewed recent data on management to inform current care and future research. This study is a narrative review of published literature. Compared with normotensive women, women with chronic hypertension are at an increased risk of maternal and perinatal complications. Women with chronic hypertension who wish to be involved in their care can do by measuring blood pressure at home. Accurate devices for home blood pressure monitoring are now readily available. The diagnostic criteria for superimposed preeclampsia remain problematic because most guidelines continue to include deteriorating blood pressure control in the definition. It has not been established how angiogenic markers may aid in confirmation of the diagnosis of superimposed preeclampsia when suspected, over and above information provided by routinely available clinical data and laboratory results. Although chronic hypertension is a strong risk factor for preeclampsia, and aspirin decreases preeclampsia risk, the effectiveness specifically among women with chronic hypertension has been questioned. It is unclear whether calcium has an independent effect in preeclampsia prevention in such women. Treating hypertension with antihypertensive therapy halves the risk of progression to severe hypertension, thrombocytopenia, and elevated liver enzymes, but a reduction in preeclampsia or serious maternal complications has not been observed; however, the lack of evidence for the latter is possibly owing to few events. In addition, treating chronic hypertension neither reduces nor increases fetal or newborn death or morbidity, regardless of the gestational age at which the antihypertensive treatment is started. Antihypertensive agents are not teratogenic, but there may be an increase in malformations associated with chronic hypertension itself. At present, blood pressure treatment targets used in clinics are the same as those used at home, although blood pressure values tend to be inconsistently lower at home among women with hypertension. Although starting all women on the same antihypertensive medication is usually effective in reducing blood pressure, it remains unclear whether there is an optimal agent for such an approach or how best to use combinations of antihypertensive medications. An alternative approach is to individualize care, using maternal characteristics and blood pressure features beyond blood pressure level (eg, variability) that are of prognostic value. Outcomes may be improved by timed birth between 38 0/7 and 39 6/7 weeks' gestation based on observational literature; of note, confirmatory trial evidence is pending. Postnatal care is facilitated by the acceptability of most antihypertensives (including angiotensin-converting enzymes inhibitors) for use in breastfeeding. The evidence base to guide the care of pregnant women with chronic hypertension is growing and aligning with international guidelines. Addressing outstanding research questions would inform personalized care of chronic hypertension in pregnancy.

Demographic and Clinical Predictors of Postpartum Blood Pressure Screening Attendance

Background: Hypertensive disorders of pregnancy (HDP) cause substantial preventable maternal morbidity and mortality. Postpartum hypertension that worsens after women are discharged is particularly dangerous, as it can go undiagnosed and cause complications. The American College of Obstetricians and Gynecologists recommends women with HDP undergo blood pressure (BP) screening 7-10 days after delivery to detect postpartum hypertension. This study aimed to describe predictors of postpartum BP screening attendance among a high-risk safety-net population in Atlanta, Georgia. Materials and Methods: We conducted a population-based cohort study of pregnant women who delivered at a large public hospital in Atlanta between July 1, 2016, and June 30, 2018. We manually abstracted demographic and clinical data from electronic medical records and used multivariable log binomial regression to estimate adjusted risk ratios (aRRs) and 95% confidence intervals (95% CIs) for associations with BP screening attendance. Results: Of 1260 women diagnosed with HDP, 13.7% attended a BP screening visit within 10 days of delivery. Women with preeclampsia with severe features were more likely to attend a BP visit than women with gestational hypertension (aRR 2.10, 95% CI 1.35-3.27). Rates of BP screening attendance were lower for women with inadequate (aRR 0.42, 95% CI 0.26-0.67) and intermediate (aRR 0.40, 95% CI 0.21-0.74) prenatal care utilization relative to women with adequate utilization. Conclusions: Among a high-risk safety-net population with HDP, most women did not attend a BP screening visit within 10 days of delivery. Addressing this gap requires further research and creative solutions to address barriers at the individual, provider, and system levels.

Validation of the BPro radial pulse waveform acquisition device in pregnancy and gestational hypertensive disorders

OBJECTIVE

To validate the BPro blood pressure (BP) wrist device for use in pregnancy and preeclampsia according to the Universal Standard protocol.

PARTICIPANTS AND METHODS

BP was measured sequentially in 45 pregnant women (including 15 with preeclampsia, 15 with gestational hypertension and 15 who remained normotensive) alternating between a mercury sphygmomanometer and BPro device.

RESULTS

The BPro is accurate in pregnancy with a mean device-observer difference of -1.7 ± 6.1 and 0.1 ± 4.6 mmHg for SBP and DBP, respectively. In women with preeclampsia, BPro also met the validation criteria for the Universal Standard protocol with a mean device-observer difference of -2.7 ± 7.1 and 0.3 ± 4.7 mmHg for SBP and DBP, respectively. However, the number of absolute BP differences within 5 mmHg was considerably fewer in those with preeclampsia when compared to the other two subgroups.

CONCLUSION

The BPro device can be recommended for BP measurement in pregnancy but should be used with caution in those with confirmed preeclampsia.

Changes to management of hypertension in pregnancy, and attitudes to self-management: An online survey of obstetricians, before and following the first wave of the COVID-19 pandemic

OBJECTIVE

This study aimed to understand the views and practice of obstetricians regarding self-monitoring for hypertensive disorders of pregnancy (blood pressure (BP) and proteinuria), the potential for self-management (including actions taken on self-monitored parameters) and to understand the impact of the COVID-19 pandemic on such views.

DESIGN

Cross-sectional online survey pre- and post- the first wave of the COVID-19 pandemic.

SETTING AND SAMPLE

UK obstetricians recruited via an online portal.

METHODS

A survey undertaken in two rounds: December 2019-January 2020 (pre-pandemic), and September-November 2020 (during pandemic) RESULTS: 251 responses were received across rounds one (150) and two (101). Most obstetricians considered that self-monitoring of BP and home urinalysis had a role in guiding clinical decisions and this increased significantly following the first wave of the COVID-19 pandemic (88%, (132/150) 95%CI: 83-93% first round vs 96% (95%CI: 92-94%), (97/101), second round; p = 0.039). Following the pandemic, nearly half were agreeable to women self-managing their hypertension by using their own readings to make a pre-agreed medication change themselves (47%, 47/101 (95%CI: 37-57%)).

CONCLUSIONS

A substantial majority of UK obstetricians considered that self-monitoring had a role in the management of pregnancy hypertension and this increased following the pandemic. Around half are now supportive of women having a wider role in self-management of hypertensive treatment. Maximising the potential of such changes in pregnancy hypertension management requires further work to understand how to fully integrate women's own measurements into clinical care.