The Potential for Pregnancy Heart Teams to Reduce Maternal Mortality in Women With Cardiovascular Disease

Cardio-obstetrics de novo: a state-level, evidence-based approach for addressing maternal mortality and severe maternal morbidity in Georgia

Georgia has a higher rate of severe maternal morbidity and mortality when compared with the rest of the United States. Evidence gained from the Georgia Maternal Mortality Review Committee identified areas of focus for high-yield clinical initiatives for improvement in maternal health outcomes. Cardiovascular disease, including cardiomyopathy, coronary conditions, and preeclampsia with or without eclampsia, is the most common cause of pregnancy-related death in non-Hispanic Black women in Georgia. The development of a cardio-obstetrics program is an initiative to advance health equity by decreasing cardiovascular morbidity and mortality. This report describes the following: (1) state-level advocacy for improving maternal health outcomes with funding gained through the legislative process and partnership with a governmental agency; (2) cardio-obstetrics program development based on evidence gained from the maternal mortality review process; and (3) implementation of a cardio-obstetrics service, beginning with a focused approach for capacity building and understanding barriers to care.

Management and outcomes of pregnant women with cardiovascular diseases in a cardio-obstetric team

BACKGROUND

Cardiovascular diseases (CVDs) are currently the leading cause of maternal death in Western countries. Although multidisciplinary cardio-obstetric teams are recommended to improve the management of pregnant women with CVD, data supporting this approach are scarce.

AIMS

To describe the characteristics and outcomes of pregnant patients with CVD managed within the cardio-obstetric programme of a tertiary centre.

METHODS

We included every pregnant patient with history of CVD managed by our cardio-obstetric team between June 2017 and December 2019, and collected all major cardiovascular events (death, heart failure, acute coronary syndromes, stroke, endocarditis and aortic dissection) that occurred during pregnancy, peripartum and the following year.

RESULTS

We included 209 consecutive pregnancies in 202 patients. CVDs were predominantly valvular heart diseases (37.8%), rhythm disorders (26.8%), and adult congenital heart diseases (22.5%). Altogether, 47.4% were classified modified World Health Organization (mWHO)>II, 66.5% had CARdiac disease in PREGnancy score (CARPREG II)≥2 and 80 pregnancies (38.3%) were delivered by caesarean section. Major cardiovascular events occurred in 16 pregnancies (7.7%, 95% confidence interval [CI] 4.5-12.2) during pregnancy and in three others (1.5%, 95% CI 0.3-4.1) during 1-year follow-up. Most events (63.1%) occurred in the 16.3% of patients with unknown CVD before pregnancy.

CONCLUSIONS

The management of pregnant patients with CVD within a cardio-obstetric team seems encouraging as we found a relatively low rate of cardiovascular events compared to the high-risk profile of our population. However, most of the remaining events occurred in patients without cardiac monitoring before pregnancy.

Development and implementation of a pregnancy heart team at a Southeastern United States tertiary hospital: a qualitative study

BACKGROUND

The United States has seen a significant rise in maternal mortality and morbidity associated with cardiovascular disease over the past 4 decades. Contributing factors may include an increasing number of parturients with comorbid conditions, a higher rate of pregnancy among women of advanced maternal age, and more patients with congenital heart disease who survive into childbearing age and experiencing pregnancy. In response, national medical organizations have recommended the creation of multidisciplinary obstetric-cardiac teams, also known as pregnancy heart teams, to provide comprehensive preconception counseling and coordinated pregnancy management that extend through the postpartum period.

OBJECTIVE

We sought to describe the development and implementation of a pregnancy heart team for parturients with cardiac disease at a southeastern United States tertiary hospital.

STUDY DESIGN

This was a qualitative study that was conducted among healthcare team members involved during the pregnancy heart team formation. Semi-structured interviews were conducted between April and May 2022, professionally transcribed, and the responses were thematically coded for categories and themes using constructs from The Consolidated Framework for Implementation Research.

RESULTS

Themes identified included intentional collaboration to improve outpatient and inpatient coordination through earlier awareness of patients who meet the criteria and via documented care planning. The pregnancy heart team united clinicians around best practices and coordination to promote the success and safety of pregnancies and not only to minimize maternal health risks. Developing longitudinal care plans was critical among the pathway team to build on collective expertise and to provide clarity for those on shift to reduce hesitancy and achieve timely, vetted practices without additional consults. Establishing a proactive approach of specialists offering their perspectives was viewed as positively contributing to a culture of speaking up. Barriers to the successful development and sustainability of the pregnancy heart team included unmet administrative needs and clinician turnover within a context of shortages in staffing and high workload.

CONCLUSION

This study described the process of developing and implementing a pregnancy heart team at 1 institution, thereby offering insights for future multidisciplinary care for maternal cardiac patients. Establishing pregnancy heart teams can enhance quality care for high-risk patients, foster learning and collaboration among physician and nursing specialties, and improve coordination to manage complex maternal cardiac cases.

Pregnancy-associated mortality due to cardiovascular disease: Impact of hypertensive disorders of pregnancy

BACKGROUND

Reported rates of maternal mortality in the United States have been staggeringly high and increasing, and cardiovascular disease (CVD) is a chief contributor to such deaths. However, the impact of hypertensive disorders of pregnancy (HDP) on the short-term risk of cardiovascular death is not well understood.

OBJECTIVES

To evaluate the association between HDP (chronic hypertension, gestational hypertension, preeclampsia, eclampsia, and superimposed preeclampsia) and pregnancy-associated mortality rates (PMR) from all causes, CVD-related causes both at delivery and within 1 year following delivery.

METHODS

We used the Nationwide Readmissions Database (2010-2018) to examine PMRs for females 15-54 years old. International Classification of Disease 9 and 10 diagnosis codes were used to identify pregnancy-associated deaths due to HDP and CVD. Discrete-time Cox proportional hazards regression models were used to calculate adjusted hazard ratios (HR) and 95% confidence intervals (CI) for mortality at delivery (0 days) and at <30, <60, <90, <180, and <365 days after delivery in relation to HDP.

RESULTS

Of 33,417,736 hospital deliveries, the rate of HDP was 11.0% (n = 3,688,967), and the PMR from CVD was 6.4 per 100,000 delivery hospitalisations (n = 2141). Compared with normotensive patients, HRs for CVD-related PMRs increased with HDP severity, reaching over 58-fold for eclampsia patients. HRs were higher for stroke-related (1.2 to 170.9) than heart disease (HD)-related (0.99 to 39.8) mortality across all HDPs. Except for gestational hypertension, the increased risks of CVD mortality were evident at delivery and persisted 1 year postpartum for all HDPs.

CONCLUSIONS

HDPs are strong risk factors for pregnancy-associated mortality due to CVD at delivery and within 1 year postpartum; the risks are stronger for stroke than HD-related PMR. While absolute PMRs are low, this study supports the importance of extending postpartum care beyond the traditional 42-day postpartum visit for people whose pregnancies are complicated by hypertension.

The role of the pregnancy heart team in clinical practice

Significant maternal and fetal morbidity and mortality risk has been shown to be associated with cardiovascular disease in pregnancy. Several determinants, such as the increasing number of females with corrected congenital heart disease in reproductive age, a more advanced maternal age associated with cardiovascular risk factors, and a greater prevalence of preexisting comorbidities related to cardiac disorders such as cancer and COVID-19), lead to a higher incidence of cardiac complications in pregnancy in the last few decades. However, adopting a multidisciplinary strategy may influence maternal and neonatal outcomes. This review aims at assessing the role of the Pregnancy Heart Team, which should ensure careful pre-pregnancy counseling, pregnancy monitoring, and delivery planning for both congenital and other cardiac or metabolic disorders, addressing several emerging aspects in the multidisciplinary team-based approach.

Social Media and Cardiovascular Health: Implications for Women

PURPOSE OF REVIEW

Cardiovascular disease (CVD) is the leading cause of mortality in adult women in the USA, yet CVD is underrecognized in women. Disparities in care are further pronounced in women of racial/ethnic minority backgrounds. In this review, we discuss the role of social media (SoMe) as a tool to (i) promote women's cardiovascular (CV) health and (ii) address and potentially reduce gaps in care, particularly in general cardiology (targeting atherosclerotic cardiovascular disease), cardio-oncology, and cardio-obstetrics. We also briefly discuss women's CV health as a common, although not unique, focus of women in cardiology on SoMe.

RECENT FINDINGS

Studies have suggested the utility of social media to help advance subspecialties of cardiology. Leaders within general cardiology, cardio-oncology, and cardio-obstetrics have curated social media strategies to advance their respective fields and call attention to cardiovascular health disparities in female populations and racial/ethnic minorities. In addition to these types of uses, women in cardiology also frequently use SoMe to encourage a career in cardiology and to share experiences, challenges, and resources for support and career advancement as healthcare professionals; men in cardiology and especially those who are allies for sex and racial/ethnic minorities also use SoMe for these means. Herein, we highlight the role and myriad applications of social media in the promotion of women's cardiovascular health. We discuss five primary roles of social media: increasing public awareness, disseminating medical literature in a rapid and accessible fashion, facilitating professional networking, serving as a platform for medical conferences, and empowering patients. These core strategies are discussed through the lens of general cardiology, cardio-oncology, and cardio-obstetrics. We also demonstrate how these applications can be leveraged to increase representation of women in cardiology, also supporting an increased focus on women's cardiovascular health.

Listening to patients: Opportunities to improve reproductive wellness for women with chronic conditions

OBJECTIVE

To understand how Black and Native American women with chronic conditions experience reproductive health care and identify patient-centered strategies to improve care.

STUDY SETTING AND PARTICIPANTS

We held a series of virtual focus groups between February 2021 and December 2021 with 34 women who self-identified as Black or Native American, were of childbearing age, had one or more chronic conditions, and lived in North Carolina.

STUDY DESIGN AND ANALYSIS

This qualitative, community-engaged study reviewed notes, video recordings, and graphic illustrations from the focus group sessions. Content analysis was used to iteratively identify themes. Emerging themes were reviewed by community and patient partners.

PRINCIPAL FINDINGS

There were six thematic areas that emerged on the current state of reproductive health care for people with chronic conditions: (1) lack of trust in health care providers and institutions, (2) lack of health care provider knowledge, (3) uncoordinated care, (4) need for self-advocacy, (5) provider bias, and (6) mental health strain from coping. Six approaches for care improvement emerged: (1) build on models of coordinated health care services from other conditions to design more comprehensive care clinics, (2) involve care coordinators or navigators, (3) improve educational materials for patients, (4) train clinicians to increase their capacity to be trustworthy and provide quality, equitable, person-focused care, (5) design scripts to improve clinicians' ability to talk with women about infertility, miscarriage, infant loss, and (6) all interventions and research should be co-designed to address patient priorities.

CONCLUSIONS

Engaging Black and Native American patient partners with chronic conditions in research planning is feasible, necessary, and beneficial using methods that support connection, respect, and bi-directional learning. Patient partners defined actionable strategies to improve reproductive care and wellness including comprehensive care clinics with patient navigators, trust-enhancing interventions, and better provision of reproductive health related education.

Maternal Hypertension Increases Risk of Preeclampsia and Low Fetal Birthweight: Genetic Evidence From a Mendelian Randomization Study

Background:

Maternal cardiovascular risk factors have been associated with adverse maternal and fetal outcomes. Given the difficulty in establishing causal relationships using epidemiological data, we applied Mendelian randomization to explore the role of cardiovascular risk factors on risk of developing preeclampsia or eclampsia, and low fetal birthweight.

Methods:

Uncorrelated single-nucleotide polymorphisms associated systolic blood pressure (SBP), body mass index, type 2 diabetes, LDL (low-density lipoprotein) with cholesterol, smoking, urinary albumin-to-creatinine ratio, and estimated glomerular filtration rate at genome-wide significance in studies of 298 957 to 1 201 909 European ancestry participants were selected as instrumental variables. A 2-sample Mendelian randomization study was performed with primary outcome of preeclampsia or eclampsia (PET). Risk factors associated with PET were further investigated for their association with low birthweight.

Results:

Higher genetically predicted SBP was associated increased risk of PET (odds ratio [OR] per 1-SD SBP increase 1.90 [95% CI=1.45–2.49]; P =3.23×10 −6 ) and reduced birthweight (OR=0.83 [95% CI=0.79–0.86]; P =3.96×10 −18 ), and this was not mediated by PET. Body mass index and type 2 diabetes were also associated with PET (respectively, OR per 1-SD body mass index increase =1.67 [95% CI=1.44–1.94]; P =7.45×10 −12 ; and OR per logOR increase type 2 diabetes =1.11 [95% CI=1.04–1.19]; P =1.19×10 −3 ), but not with reduced birthweight.

Conclusions:

Our results provide evidence for causal effects of SBP, body mass index, and type 2 diabetes on PET and identify that SBP is associated with reduced birthweight independently of PET. The results provide insight into the pathophysiological basis of PET and identify hypertension as a potentially modifiable risk factor amenable to therapeutic intervention.

Reducing disparities in adverse pregnancy outcomes in the United States

There is growing evidence that rural and racial disparities and social determinants of health (SDOH) impact adverse pregnancy outcomes (APOs) and overall maternal mortality in the United States. These APOs, such as preeclampsia, preterm birth, and intrauterine growth restriction, are in-turn associated with increased risk of future cardiovascular disease (CVD) later in life. Importantly, SDOH such as socioeconomic disadvantages, poor health literacy, transportation barriers, lack of access to adequate health care, food insecurity, and psychosocial stressors have cascading effects on APOs and downstream cardiovascular health. These SDOH are also deeply intertwined with and compounded by existing racial and rural disparities. Pregnancy thus provides a unique opportunity to identify at-risk women from a social determinants perspective, and provide early interventions to optimize long-term CVD and mitigate cardiovascular health disparities. Addressing the challenges posed by these disparities requires a multi-pronged approach and involves national, regional, and individual level solutions. Eliminating disparities will necessitate a nationwide obligation to ensure health care equity via enhanced health insurance coverage, resource investment, and public and clinician accountability.

Cardiovascular adverse events in pregnancy: A global perspective

Pregnant women with heart disease are vulnerable to many adverse cardiovascular events (AE). AEs during and after pregnancy continue to be important causes of maternal mortality and morbidity worldwide, with huge variations in burden in different countries and regions. These AEs are classified as having direct or indirect causes, depending on whether they are directly caused by pregnancy or due to some pre-existing disease and/or non-obstetric cause, respectively. The risks continue throughout pregnancy and even after childbirth. Apart from immediate complications during pregnancy, there is increasing evidence of a significant link between several events and the risk of cardiovascular disease (CVD) later in life. A significant number of pregnancy-related deaths caused by cardiovascular disease are preventable. This prevention can be realized through increasing awareness of cardiovascular AE in pregnancy, coupled with the application of strategies for prevention and treatment. Knowledge of the risks associated with CVD and pregnancy is of extreme importance in that regard. We discuss the global distribution of cardiovascular maternal mortality, adverse events during and after pregnancy, their predictors and risk stratification. In addition, we enumerate possible solutions, particularly the role of cardio-obstetric clinics.

Thrombosis of mechanical mitral valve prosthesis during pregnancy: An ongoing "saga" in need of comprehensive solutions

Emergency treatment for thrombosed mechanical valve prothesis during pregnancy is not uncommon in low- and middle-income countries. The presence of a mechanical valve continues to be an important cause of maternal morbidity and mortality. There is a pressing need for increasing awareness and feasible solutions for this huge problem. We here describe four patients who needed emergency treatment for thrombosis of mechanical valve prothesis during pregnancy and review the evolving comprehensive strategies for dealing with this issue.