Maternal Cardiovascular Risk Research Articles

When pulmonary arterial hypertension and pregnancy meet: a multidisciplinary clinical experts review.

Pulmonary hypertension (PH) is a rare condition characterized by elevated pulmonary arterial pressure and pulmonary vascular resistance, potentially leading to right ventricular failure. Pulmonary arterial hypertension (PAH) is the most common type of PH in women of childbearing age and, as per the modified World Health Organization (mWHO) classification of maternal cardiovascular risk, it falls into mWHO class IV and pregnancy is contraindicated. These patients face an exceptionally high risk of maternal mortality and morbidity, with estimated maternal cardiac event rates ranging from 40 to 100% during pregnancy, because physiological changes happening in pregnancy exacerbate the disorder. Despite these recommendations, there is a growing incidence of pregnancy among women with PAH. Early referral to specialized centers, personalized therapies and expert multidisciplinary care involving pulmonary hypertension specialists, obstetricians, critical care specialists, anesthesiologists, and neonatologists are crucial steps to ensure positive outcomes for both mother and fetus. This review aims to examine the current understanding of pregnancy in patients with PAH, drawing on the experience of our center in the multidisciplinary management of pregnant women with this condition. In particular, we want to focus the attention of clinicians on the following aspects: early referral of pregnant patients to specialized centers, detailed counseling on the implications of pregnancy, initiation of therapy in treatment-naive patients and potential adjustment of therapy in non-naive patients, periodic risk assessment, evaluation of the appropriate timing of delivery, multidisciplinary management of the most critical periods, which are delivery and the post-partum phase.

Long-term cardiovascular assessment of women with previous pregnancy complicated by hypertensive disorder.

Women with a hypertensive disorder of pregnancy (HDP) are at increased risk of developing hypertension and cardiovascular disease later in life. However, from previous studies, it is difficult to define whether this association reflects pre-existing maternal cardiovascular risk or a potentially causal relationship between HDP and later cardiovascular risk. In this study, we performed detailed cardiovascular assessment in women in midgestation, prior to development of HDP, and at 2 years postpartum, aiming to identify cardiovascular changes prior to development of HDP and to assess persistent cardiovascular alterations long after the HDP event. This was a prospective observational study in which we performed detailed cardiovascular assessment in midgestation and at a median of 2.3 (interquartile range, 2.1-2.4) years postpartum. We examined 112 women who developed HDP and 451 women whose pregnancy was not complicated by hypertension. We used conventional and more advanced (i.e. speckle tracking) echocardiographic techniques to determine accurately left ventricular systolic and diastolic function. We used M-mode measurements to determine left ventricular remodeling and estimate left ventricular mass. Maternal vascular status was assessed using ophthalmic artery Doppler and by calculating peak systolic velocity (PSV) ratio, as a marker of peripheral vascular resistance. In midgestation, women who subsequently developed HDP had increased ophthalmic artery PSV ratio. These women also had mild cardiac functional and morphological alterations, which were accounted for mostly by maternal cardiovascular risk factors. At 2 years postpartum, women who had experienced HDP, compared to those who did not, had cardiovascular abnormalities with reduction in left ventricular systolic and diastolic function, which remained after multivariable analysis. Longitudinal analysis demonstrated that the evolution of cardiovascular changes in the HDP and non-HDP groups was similar. Mild cardiac functional and morphological alterations precede the development of HDP and such changes persist for at least 2 years postpartum. The cardiac changes are likely to be the consequence of pre-existing maternal cardiovascular risk factors rather than an adverse consequence of HDP. © 2024 International Society of Ultrasound in Obstetrics and Gynecology.

Fetal microchimerism (FMc) correlates with both stages of the two-stage model of preeclampsia – A potential link to future maternal cardiovascular risk?

Fetal microchimerism (FMc) correlates with both stages of the two-stage model of preeclampsia – A potential link to future maternal cardiovascular risk?

Hypertensive disorders of pregnancy among women with cardiovascular disease in Norway: A historical cohort study.

Women with cardiovascular disease may be at increased risk of hypertensive disorders of pregnancy (HDP). We aimed to: (1) Investigate the occurrence of HDP in a cohort of pregnant women with cardiovascular disease and compare it with the occurrence in the general population. (2) Assess the association between maternal cardiovascular risk and risk of HDP. We reviewed clinical data on a cohort of 901 pregnancies among 708 women with cardiovascular disease who were followed at the National Unit for Pregnancy and Heart Disease and gave birth at Oslo University Hospital between 2003 and 2018. The exposure under study was maternal cardiovascular risk, classified as low, moderate, or high based on a modified classification by the World Health Organization. The main outcome of interest was HDP, which included pre-eclampsia and gestational hypertension. The proportion of HDP cases in the general population in the same period was extracted from the Medical Birth Registry of Norway. We used logistic regression to estimate crude and adjusted odds ratios (OR) of HDP, with associated 95% confidence intervals (CIs), for women with moderate- and high cardiovascular risk compared to women with low risk. The occurrence of HDP in the study cohort was 12.1% (95% CI: 10.0%-14.4%) and varied between 8.7% (95% CI: 6.5%-11.3%) in the low-risk group, 15.7% (95% CI: 11.1%-21.4%) in the moderate-risk group, and 22.2% (95% CI: 15.1%-30.8%) in the high-risk group. By contrast, the nationwide occurrence of HDP was 5.1% (95% CI: 5.1%-5.2%). In the study cohort, the proportions of pregnancies with gestational hypertension and pre-eclampsia were similar (6.3% and 5.8%, respectively). Compared to pregnancies with low cardiovascular risk, the adjusted OR of HDP was 2.04 (95% CI: 1.21-3.44) in the moderate-risk group and 2.99 (95% CI: 1.73-5.18) in the high-risk group. The occurrence of hypertensive disease of pregnancy in the study cohort was more than doubled compared to the general population in Norway. The risk of HDP increased with maternal cardiovascular risk group. We recommend taking into account maternal cardiovascular risk group when assessing risk and prophylaxis of HDP.

Association between cardiovascular risk and maternal perception of BMI in Peruvian schoolchildren.

In the modern era, the maternal perception of children's nutritional status has emerged as a critical area of study, given its potential influence on nutritional interventions and long-term child health. The relationship between this perception and children's Body Mass Index (BMI) by age is particularly intriguing, as it may reveal discrepancies between perception and reality. The aim of this study was to evaluate Peruvian mothers' perception of their children's Body Mass Index (BMI) in relation to age and to determine how this perception associates with the children's cardiovascular risk. The study also analyzed sociodemographic factors that might influence this perception. The study included 130 mothers of schoolchildren aged 5 to 11 from a school in Lima. Mothers' perceptions of their children's weight were assessed using pictograms, and sociodemographic characteristics were collected through a questionnaire. Weight and height measurements were taken to calculate BMI, and waist circumference was measured to classify cardiovascular risk. A total of 57.4% of the schoolchildren presented with excess malnutrition, and 51.5% of the mothers incorrectly classified the actual BMI/Age of their children (kappa 0.11; p ≤ 0.05). Additionally, it was found that the schoolchild's age is associated with the mother's failure to accurately perceive her child's weight (OR 1.59). Lastly, there was a significant association between maternal perception and cardiovascular risk (p ≤ 0.05). There is a significant discrepancy between maternal perception and the actual nutritional status of children, which can increase cardiovascular risk. It is necessary to implement intervention and education strategies targeted at parents to enhance the recognition and management of childhood overweight and obesity.

Electrocardiographic proarrhythmic changes in pregnancy of women with CHD.

Pregnancy-related physiological adaptations result in increased heart rate as well as electrocardiographic changes such as a mean QTc prolongation of 27 ms. Pregnant women with CHD are at increased risk for cardiovascular complications. The aim of this study was to identify risk factors for abnormally prolonged QTc interval-a risk factor for ventricular arrhythmias-in pregnant women with CHD. Retrospective longitudinal single-centre study. Pre-pregnancy demographic and electrocardiographic risk factors for abnormal QTc duration during pregnancy of (a) > 460 ms and (b) >27 ms increase were analyzed. Eighty-three pregnancies in 63 women were included, of which three had documented arrhythmias. All five Modified World Health Organization Classification of Maternal Cardiovascular Risk (mWHO) classeswere represented, with 15 pregnancies (18.1%) in mWHO class I, 26 (31.3%) in mWHO II, 28 (33.7%) in mWHO II-III, 11 (13.3%) in mWHO III, and three pregnancies (3.6%) in mWHO class IV. Heart rate and QTc interval increased, while QRS duration and PR interval shortened during pregnancy. QTc duration of > 460 ms was associated with increased pre-pregnancy QTc interval, QRS duration, and weight, as well as body mass index. QTc increase of > 27 ms was associated with increased heart rate prior to pregnancy. No significant associations of electrocardiographic changes with mWHO class or CHD type were identified. Increased QTc in pregnant women with CHD was associated with being overweight or having higher heart rate, QRS, or QTc duration prior to pregnancy. These patients should be monitored closely for arrhythmias during pregnancy.

Are fetal microchimerism and circulating fetal extracellular vesicles important links between spontaneous preterm delivery and maternal cardiovascular disease risk?

Trafficking and persistence of fetal microchimeric cells (fMCs) and circulating extracellular vesicles (EVs) have been observed in animals and humans, but their consequences in the maternal body and their mechanistic contributions to maternal physiology and pathophysiology are not yet fully defined. Fetal cells and EVs may help remodel maternal organs after pregnancy-associated changes, but the cell types and EV cargos reaching the mother in preterm pregnancies after exposure to various risk factors can be distinct from term pregnancies. As preterm delivery-associated maternal complications are rising, revisiting this topic and formulating scientific questions for future research to reduce the risk of maternal morbidities are timely. Epidemiological studies report maternal cardiovascular risk as one of the major complications after preterm delivery. This paper suggests a potential link between fMCs and circulating EVs and adverse maternal cardiovascular outcomes post-pregnancies, the underlying mechanisms, consequences, and methods for and how this link might be assessed.

THE SYSTEMATIC REVIEW OF THE ASSOCIATION OF PREGNANCY OUTCOMES AND CHRONIC KIDNEY DISEASE

Background: Pregnancy as a metabolic stress test that might reveal underlying endothelial dysfunction and vascular illness. Maternal cardiovascular disease risk is heightened in cases of adverse pregnancy outcomes, including hypertensive disorders of pregnancy, gestational diabetes, and premature birth. Aims : This systematic review is to review the association of chronic kidney disease to its outcomes at pregnant women. Methods: By comparing itself to the standards set by the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) 2020, this study was able to show that it met all of the requirements. So, the experts were able to make sure that the study was as up-to-date as it was possible to be. For this search approach, publications that came out between 2014 and 2024 were taken into account. Several different online reference sources, like Pubmed and SCIENCE DIRECT, were used to do this. It was decided not to take into account review pieces, works that had already been published, or works that were only half done. Result: In the PubMed database, the results of our search brought up 661 articles, whereas the results of our search on SCIENCE DIRECT brought up 3.6314 articles. The results of the search conducted for the last year of 2014 yielded a total 12 articles for PubMed and 96 articles for SCIENCE DIRECT. In the end, we compiled a total of 5 papers, 4 of which came from PubMed and 1 of which came from SCIENCE DIRECT. We included five research that met the criteria. Conclusion: In summary, an increased risk of chronic kidney disease was linked to exposure to unfavorable pregnancy outcomes, such as hypertensive disorders of pregnancy, gestational diabetes, and premature birth. Preeclamptic women had the highest chance of developing ESKD. To identify women who are more likely to develop kidney disease, especially following hypertensive disorders during pregnancy, a systematic strategy may be necessary to maximize the patients' long-term follow-up.

Increased cesarean section rate and premature birth according to modified WHO maternal cardiovascular risk in pregnant women with congenital heart disease

Background During pregnancy and delivery, hemodynamics are altered and complex congenital heart disease has been associated with adverse maternal and neonatal outcomes. We sought to investigate pregnancy outcome and complications in relation to complexity of heart condition. Materials and methods We studied women with ACHD discussed at multidisciplinary conferences at Lund University Hospital March 2009-May 2021. We studied 149 pregnancies in 101 women. We scored each woman retrospectively according to the modified World Health Organization (mWHO) risk classification and included patients in risk class I (n = 36, 24.1%), II (n = 43, 28.9%), II-III (n = 43, 28.9%), III (n = 24, 16.1%) and IV (n = 3, 2.0%). Results Women with mWHO class ≥III underwent cesarean section more often than women in less complex mWHO classes, (OR, 5.1; 95% CI, 2.0–12.5; p<0.001). The odds of premature delivery were significantly higher among pregnant women with mWHO class ≥III (OR, 6.7; 95% CI, 2.6–17.4; p<0.001). We found no difference in incidence of preeclampsia, gestational hypertension, gestational diabetes, hemorrhage >1000 ml or cardiac defect in the neonate depending on WHO-class. Women in mWHO classes III-IV had a higher rate of fetal growth restriction (FGR) compared to women in mWHO classes I, II, II-III (p<0.007). Conclusions Our findings indicate that women with more complex heart disease (mWHO classes III or IV) tend to have a higher rate of cesarean section, premature birth and FGR.

Increased cesarean section rate and premature birth according to modified WHO maternal cardiovascular risk in pregnant women with congenital heart disease

Abstract Background During pregnancy and delivery, hemodynamics are altered, and women with adult congenital heart disease (ACHD) might have a higher risk of obstetric and neonatal complications. We sought to investigate pregnancy outcome and complications in relation to complexity of heart condition. Materials and methods We studied women with ACHD discussed at multidisciplinary conferences March 2009-May 2021. We studied 149 pregnancies in 101 women. We scored each woman retrospectively according to the modified World Health Organization (mWHO) risk classification and included patients in risk class I (n=36, 24.1%), II (n=43, 28.9%), II-III (n=43, 28.9%), III (n=24, 16.1% and IV (n=3, 2.0%). Relative risks were assessed with logistic regression adjusting for parity and age. Results Women with mWHO class ≥III underwent cesarean section more often than women in less complex mWHO classes, p<0.001. Women in mWHO classes I, II and II-III were 83.8% (CI 54.4%-94.2% p<0.001) less likely to give birth prematurely compared to women in mWHO classes III and IV. We found no difference in incidence of preeclampsia, gestational hypertension, gestational diabetes or hemorrhage >1000 ml depending on WHO-class (table 1). Women in mWHO classes III-IV had a higher rate of fetal growth restriction compared to women in mWHO classes I, II, II-III (p<0.007). Conclusions Women with complex congenital heart disease (mWHO ≥III) tend to have a higher rate of cesarean section, premature birth and fetal growth restriction.Table 1

Hypertensive disorders of pregnancy and cardiovascular disease risk: A Mendelian Randomisation study.

Observational studies show that hypertensive disorders of pregnancy (HDPs) are related to unfavourable maternal cardiovascular disease (CVD) risk profiles later in life. We investigated whether genetic liability to pre-eclampsia/eclampsia and gestational hypertension is associated with CVD risk factors and occurrence of CVD events. We obtained genetic associations with HDPs from a genome-wide association study and used individual-participant-data from the UK Biobank to obtain genetic associations with CVD risk factors and CVD events (defined as myocardial infarction or stroke). In our primary analysis, we applied Mendelian Randomisation using inverse-variance weighted regression analysis in ever pregnant women. In sensitivity analyses, we studied men and nulligravidae to investigate genetic liability to HDPs and CVD risk without the ability to experience the underlying phenotype. Our primary analysis included 221,155 ever pregnant women (mean age 56.8 [SD 7.9]) with available genetic data. Odds ratios for CVD were 1.20 (1.02-1.41) and 1.24 (1.12-1.38) per unit increase in the log odds of genetic liability to pre-eclampsia/eclampsia and gestational hypertension, respectively. Furthermore, genetic liability to HDPs was associated with higher levels of systolic and diastolic blood pressure and younger age at hypertension diagnosis. Sensitivity analyses revealed no statistically significant differences when comparing the findings to those of nulligravidae and men. Genetic liability to HDPs is associated with higher CVD risk, lower blood pressure levels, and earlier hypertension diagnosis. Our study suggests similar findings in ever pregnant women, nulligravidae and men, implying biological mechanisms relating to HDPs are causally related to CVD risk.

Effects on reduction of morbidity and mortality in ACHD population of childbearing age as a result of ESC Guidelines

Abstract Introduction Cardiovascular disease remains the leading cause of maternal death during pregnancy and peripartum period. ACHD is a rising cause for maternal cardiovascular complications. Several studies demonstrated the beneficial role of systematic maternal cardiovascular risk assessment culminating in the European Society of Cardiology guidelines in 2018 endorsing the use of the modified World Health Organization (mWHO) classification to stratify maternal risk and further guide surveillance and management of women with underlying cardiac conditions. Purpose In this study we aim to reduce maternal cardiovascular morbidity risks by actively implementing recommendations from the 2018 ESC guidelines for the management of cardiovascular diseases in women with ACHD in childbearing age in Grampian region, Scotland. Methods We identified women of childbearing age (n = 204) in the ACHD population of NHS Grampian (n = 594). We initially calculated baseline percentage of ACHD women who had pre-pregnancy counselling, documented mWHO risk assessment and, if applicable, contraception advice and pregnancy rate. This population has been prospectively followed up during the period from 2020 to 2022 and ESC guidelines were implemented. By the end of the follow up period we assessed the changes in the pregnancy rate in ACHD women. Results Overall, the population of ACHD women of childbearing age in Grampian region has significantly grown (expanded) during the study period (from n = 204 to n = 230) and the vast majority (90.5%) of these patients are diagnosed with mWHO class I (38.3%, ESC mild ACHD) or mWHO class II / class II-III (52.2%, ESC moderate ACHD). There has been an increase in the percentage of women reviewed in Transition Clinic compared to baseline (44.7% versus 27.8%, respectively), a clearer documentation of mWHO pregnancy risk (31.6% versus 7.3%) and an increase in contraceptives use, especially in moderate and severe ACHD patients compared to baseline (65.2% versus 57.1%, respectively). This resulted in an overall reduction of the numbers of pregnancy in ACHD women compared to baseline (7.9% versus 40.1%, respectively), especially in women with ESC moderate and severe ACHD (Table 1) with consequent reduction in hospital admissions and morbidity. Conclusions Implementing risk stratification tools (mWHO pregnancy risk stratification) and systematic pre-pregnancy counselling with contraceptive advice (all key recommendations from the ESC guidelines) reduce the rate of high-risk pregnancy in ACHD women. This translates to an improvement in survival rates and lower morbidity in ACHD women. Further follow up is required to ensure the consistency of this finding.

Protocol for a 20-year follow-up after a randomized controlled trial of a Mediterranean diet in pregnancy: maternal and offspring risk factors for cardiovascular disease.

An inadequate maternal diet during pregnancy can impair offspring health and may increase the risk of cardiovascular disease later in life. The purpose of the proposed study is to assess the risk factors associated with cardiovascular disease in both mothers and their offspring 20 years following their participation in a Mediterranean diet intervention trial during pregnancy. The "Cardiovascular Risk Reduction Diet In Pregnancy" (CARRDIP) study was a randomized controlled trial performed between 1999 and 2001. The participants were randomized to adhere to either a Mediterranean diet or their regular diet during pregnancy. An extensive amount of data such as diet information, ultrasound measurements, anthropometry, and biomarkers from these mothers during pregnancy and their offspring in the neonatal period were collected. The mother-offspring pairs (n = 269) from the CARRDIP study will be invited to participate in a clinical examination and blood sample collection. This follow-up study, conducted 20 years after the original CARRDIP study, will investigate cardiovascular risk factors in mothers and offspring. The primary outcome will be the blood pressure of the offspring. In addition, the study will explore various aspects of cardiovascular health, including metabolic and inflammatory status, clinical history, and body composition of the participants. Previous studies investigating the effects of nutrition during pregnancy on maternal and offspring health have been either observational studies, animal studies, or randomized controlled trials with a follow-up period of less than 5 years. This project aims to study the long-term effects of dietary intervention during pregnancy on maternal and offspring cardiovascular risk markers. Clinicaltrials.gov, identifier (NCT05030922).

Maternal Supraphysiological Hypercholesterolemia Is Accompanied by Shifts in the Composition and Anti-Atherogenic Functions of Maternal HDL along with Maternal Cardiovascular Risk Markers at Term of Pregnancy.

Maternal physiological hypercholesterolemia (MPH) occurs in pregnancy for a proper fetal development. When cholesterol increases over the physiological range, maternal supraphysiological hypercholesterolemia (MSPH) is described, a condition underdiagnosed by a lack of evidence showing its biological and clinical relevance. To determine if MSPH associates with maternal vascular dysfunction, along with changes in the composition and function of maternal HDL leading to increased cardiovascular risk. This study included 57 women at term of pregnancy in which a lipid profile was determined. Maternal total cholesterol (TC) and LDL but not HDL were increased in MSPH women. The isolated HDL from a subgroup of MSPH women had a lower protein abundance and a reduced activity of the antioxidant enzyme PON1; however, an increased antioxidant capacity compared to MPH was observed, along with higher serum levels of α-tocopherol. Moreover, HDL from a subgroup of MSPH women had a lower capacity to induce NO synthesis in endothelial cells compared to MPH. In the circulation, we observed a reduced total antioxidant capacity and augmented levels of soluble VCAM, ApoB, ApoCII, ApoCIII, IL-10, and IL-12p70, as well as the cardiovascular risk ratio ApoB/ApoAI, compared to MPH women. MSPH women present dysfunctional HDL and increased atherogenic cardiovascular risk factors.

Lipid Profile Variations in Pregnancies with and without Cardiovascular Risk: Consequences for Both Mother and Newborn.

Background: Maternal cardiovascular risk and its implications can have significant repercussions for both the mother and the child. This study compares the lipid profiles of two distinct groups of pregnant women, those with and without cardiovascular risk, to shed light on its effects on maternal and outcomes for newborns. Materials and Methods: This study enrolled 86 pregnant women, dividing them into two groups: Group 1 (n = 46, healthy pregnancies) and Group 2 (n = 40, pregnancies with cardiovascular risk factors). The data collected included maternal demographics, smoking history, pre-existing pathologies, and a range of laboratory measures. Neonatal outcomes were also recorded. Results: Group 2 showed a significant increase in the percentage of newborns with abnormal APGAR scores (p-value < 0.0001), congenital abnormalities (p-value < 0.0001), severe prematurity (p-value < 0.0001), and neonatal mortality rates (p-value < 0.0001), as well as differences in birth weight (p-value = 0.0392) and therapy usage (surfactant: p-value < 0.001, steroids p-value = 0.004, and antibiotics p-value < 0.001). Regarding laboratory measures, Group 2 exhibited significantly elevated levels of total cholesterol, LDL-C (p-value < 0.0001), ApoB (p-value < 0.0001), Lp(A) (p-value = 0.0486), triglycerides (p-value < 0.0001), and hs-CRP (p-value = 0.0300). Discussion: These results underscore the elevated risk associated with pregnancies complicated by cardiovascular risk factors. Group 2 demonstrated a more concerning clinical profile, with a higher prevalence of detrimental neonatal outcomes and different lipid and inflammatory profiles, signifying a potential pathophysiological link. Conclusions: The differential lipid profiles and adverse neonatal outcomes in pregnancies with cardiovascular risks highlight the urgency of effective risk stratification and management strategies in this population.

Higher gestational weight gain delays wound healing and reduces expression of long non-coding RNA KLRK1-AS1 in neonatal endothelial progenitor cells.

High gestational weight gain (GWG) is a cardiovascular risk factor and may disturb neonatal endothelial function. Long non-coding RNAs (lncRNAs) regulate gene expression epigenetically and can modulate endothelial function. Endothelial colony forming cells (ECFCs), circulating endothelial precursors, are a recruitable source of endothelial cells and sustain endothelial function, vascular growth and repair. We here investigated whether higher GWG affects neonatal ECFC function and elucidated the role of lncRNAs herein. Wound healing of umbilical cord blood-derived ECFCs after pregnancies with GWG <13 kg versus >13kg was determined in a scratch assay and based on monolayer impedance after electric wounding (electric cell-substrate impedance sensing, ECIS). LncRNA expression was analysed by RNA sequencing. The function of killer cell lectin-like receptor K1 antisense RNA (KLRK1-AS1) was investigated after siRNA-based knockdown. Closure of the scratch was delayed by 25% (P=0.041) in the higher GWG group and correlated inversely with GWG (R=-0.538, P=0.012) in all subjects (n=22). Similarly, recovery of the monolayer barrier after electric wounding was delayed (-11% after 20h; P=0.014; n=15). Several lncRNAs correlated with maternal GWG, the most significant one being KLRK1-AS1 (log2 fold change=-0.135, P<0.001, n=35). KLRK1-AS1 knockdown (n=4) reduced barrier recovery after electric wounding by 21% (P=0.029) and KLRK1-AS1 expression correlated with the time required for wound healing for both scratch (R=0.447, P=0.033) and impedance-based assay (R=0.629, P=0.014). Higher GWG reduces wound healing of neonatal ECFCs, and lower levels of the lncRNA KLRK1-AS1may underlie this. KEY POINTS: Maternal cardiovascular risk factors such as diabetes, obesity and smoking in pregnancy disturb fetal endothelial function, and we here investigated whether also high gestational weight gain (GWG) has an impact on fetal endothelial cells. Circulating endothelial progenitor cells (endothelial colony forming cells, ECFCs) are highly abundant in the neonatal blood stream and serve as a circulating pool for vascular growth and repair. We revealed that higher GWG delays wound healing capacity of ECFCs in vitro. We identified the regulatory RNA lncRNA KLRK1-AS1 as a link between GWG and delayed ECFC wound healing. Our data show that high GWG, independent of pre-pregnancy BMI, affects neonatal ECFC function.

CASE REPORT OF A RARE CAUSE OF SECONDARY HYPERTENSION ILLUSTRATING THE IMPORTANCE OF CARDIO-OBSTETRICS PRECONCEPTION COUNSELING

Objective: Our objective is to illustrate the value of preconception management of rare case of secondary hypertension namely Middle Aortic Coarctation (MAC), which is characterized by a constriction of the upper abdominal aorta. During pregnancy, MAC can lead to feto-maternal unfavorable hemodynamic balance (Fig.1). On the one hand, elevation of the arterial blood pressure (BP) of the upper part of the body increases the maternal cardiovascular risk i.e. stroke or aortic dissection. On the other hand, hypo-perfusion of the lower part of the body reduces uterine perfusion, increases fetal risk of preeclampsia, placental insufficiency or fetal growth restriction. Design and method: Here, we report the case of a 30-year-old woman with severe hypertension and plans to become pregnant. She previously underwent percutaneous transluminal angioplasty (PTA) and aortic stenting and presented with elevated BP in both arms (right 177/117 mmHg, left 180/121 mmHg) and decreased ABI bilaterally (Tab. 1). A computed tomography angiography of the aorta was performed showing an aortic stent in a supraceliac position with 79% in-stent stenosis. She underwent a new PTA with in-stent re-stenting (Fig. 2). Results: Post PCA, the four extremities BP measurements showed a reduction of her BP values and a normalization of the ABI bilaterally (Table 1). 24h-ABPM confirmed the BP reduction (mean 24h- systolic BP of 135 mmHg, diastolic BP of 101 mmHg), but still remaining-elevated. Therefore, we started an antihypertensive treatment with a successful BP control (125/82 mmHg). Conclusions: The management of MAC in already pregnant women can be particularly challenging. Indeed, angiotensin-converting enzyme inhibitors or angiotensin receptor blockers are contraindicated. Furthermore, PTA during pregnancy expose the fetus to radiation and reports for CoA angioplasty and stenting during pregnancy are very limited. Herby, we decided on an interventional rather than conservative approach. This case illustrates the importance of preconception screening and treatment of chronic hypertension in women with plans to become pregnant. It highlights the fact that secondary causes of hypertension do not have to be overlooked in this population.

Protocolo diagnóstico y tratamiento de la hipertensión en los jóvenes y las mujeres embarazadas

Hypertension affects one quarter of the world population, and it is the main modifiable risk factor for cardiovascular diseases and mortality, and its prevalence increases with age. The protocols for diagnosis and treatment should be modified in certain patient subgroups such as young adults or during pregnancy. In young adults the study and differential diagnosis to rule out secondary hypertension and suitable control of blood pressure will reduce the development of cardiovascular events such as myocardial infarct, cerebrovascular accidents, heart failure and death with a cardiovascular cause. Developing hypertension during pregnancy significantly increases the risk of developing preeclampsia, delays intrauterine growth and increases maternal and foetal morbimortality. Furthermore, the development of preeclampsia and hypertension during gestation has been linked to long-term maternal cardiovascular risk. Early diagnosis and treatment make it possible to reduce the incidence of preeclampsia and complications for the mother and foetus.

Mode of delivery and perinatal outcomes by modified World Health Organization classification of maternal cardiovascular risk in pregnancy

Cardiac disease is a leading cause of maternal morbidity and mortality in the United States, and an increasing number of patients with known cardiac disease are reaching childbearing age. Although guidelines indicate that cesarean deliveries should be reserved for obstetrical indications, rates of cesarean delivery among obstetrical patients with cardiovascular disease are higher than those of the general population. This study aimed to evaluate mode of delivery and perinatal outcomes among patients with low-risk and moderate to high-risk cardiac disease as defined by the modified World Health Organization classification of maternal cardiovascular risk. We performed a retrospective cohort study of obstetrical patients with known cardiac disease, as defined by the modified World Health Organization cardiovascular classification categories in pregnancy, who underwent a perinatal transthoracic echocardiogram at a single academic medical center between October 1, 2017 and May 1, 2022. Demographics, clinical characteristics, and perinatal outcomes were collected. Comparisons were made between patients with low- (modified World Health Organization Class I) and moderate to high-risk (modified World Health Organization Class II-IV) cardiac disease using chi-square, Fisher exact, or Student t-tests. Cohen d tests were used to estimate the effect size between group means. Logistic regression models were used to evaluate the odds of vaginal and cesarean delivery in low- and moderate to high-risk groups. A total of 108 participants were eligible for inclusion, with 41 participants in the low-risk cardiac group and 67 in the moderate to high-risk group. Participants had a mean age of 32.1 (±5.5) years at the time of delivery and a mean pregravid body mass index of 29.9 (±7.8) kg/m2. Chronic hypertension (13.9%) and a history of hypertensive disorder of pregnancy (14.9%) were the most common comorbid medical conditions. In total, 17.1% of the sample had a history of a cardiac event (eg, arrhythmia, heart failure, myocardial infarction). Rates of vaginal and cesarean deliveries were similar between the low- and moderate to high-risk cardiac groups. Patients in the moderate to high-risk cardiac group were more likely to be admitted to the intensive care unit during pregnancy (odds ratio, 7.8; P<.05) and experience severe maternal morbidity compared with patients in the low-risk cardiac group (P<.01). Mode of delivery was not associated with severe maternal morbidity in the higher-risk cardiac group (odds ratio, 3.2; P=.12). In addition, infants of mothers with higher-risk disease were more likely to be admitted to the neonatal intensive care unit (odds ratio, 3.6; P=.06) and have longer neonatal intensive care unit stays (P=.005). There was no difference in mode of delivery by modified World Health Organization cardiac classification, and mode of delivery was not associated with risk of severe maternal morbidity. Despite the overall increased risk of morbidity in the higher-risk group, vaginal delivery should be considered as an option for certain patients with well-compensated cardiac disease. However, larger studies are needed to confirm these findings.

Adverse pregnancy outcomes and the development of short-term maternal cardiovascular disease risk factors

Adverse pregnancy outcomes (APOs) are linked to future maternal cardiovascular disease (CVD) risk factors and events. We sought to examine the association between APOs and short-term established CVD risk factors in a contemporary, high-risk, racially, and ethnically diverse hospital population in North Carolina.