Association between pregnancy and long-term cardiac outcomes in individuals with congenital heart disease.

BACKGROUND: As early life interventions for congenital heart disease improve, more patients are living to adulthood and are considering pregnancy. Scoring and classification systems predict the maternal cardiovascular risk of pregnancy in the context of congenital heart disease, but these scoring systems do not assess the potential subsequent risks following pregnancy. Data on the long-term cardiac outcomes after pregnancy are unknown for most lesion types. This limits the ability of healthcare practitioners to thoroughly counsel patients who are considering pregnancy in the setting of congenital heart disease. OBJECTIVE: We aimed to evaluate the association between pregnancy and the subsequent long-term cardiovascular health of individuals with congenital heart disease. STUDY DESIGN: This was a retrospective longitudinal cohort study of individuals identifying as female who were receiving care in two adult congenital heart disease centers from 2014 to 2019. Patient data were abstracted longitudinally from a patient age of 15 years (or from the time of entry into the healthcare system) to the conclusion of the study, death, or exit from the healthcare system. The primary endpoint, a composite adverse cardiac outcome (death, stroke, heart failure, unanticipated cardiac surgery, or a requirement for a catheterized procedure), was compared between parous (at least one pregnancy >20 weeks' gestation) and nulliparous individuals. By accounting for differences in the follow-up, the effect of pregnancy was estimated based on the time to the composite adverse outcome in a proportional hazards regression model adjusted for the World Health Organization class, baseline cardiac medications, and number of previous sternotomies. Participants were also categorized according to their lesion type, including septal defects (ventricular septal defects, atrial septal defects, atrioventricular septal defects, or atrioventricular canal defects), right-sided valvular lesions, left-sided valvular lesions, complex cardiac anomalies, and aortopathies, to evaluate if there is a differential effect of pregnancy on the primary outcome when adjusting for lesion type in a sensitivity analysis. RESULTS: Overall, 711 individuals were eligible for inclusion; 209 were parous and 502 nulliparous. People were classified according to the World Health Organization classification system with 86 (12.3%) being classified as class I, 76 (10.9%) being classified as class II, 272 (38.9%) being classified as class II to III, 155 (22.1%) being classified as class III, and 26 (3.7%) being classified as class IV. Aortic stenosis, bicuspid aortic valve, dilated ascending aorta or aortic root, aortic regurgitation, and pulmonary insufficiency were more common in parous individuals, whereas dextro-transposition of the great arteries, Turner syndrome, hypoplastic right heart, left superior vena cava, and other cardiac diagnoses were more common in nulliparous individuals. In multivariable modeling, pregnancy was associated with the composite adverse cardiac outcome (36.4%% vs 26.1%%; hazard ratio, 1.83; 95% confidence interval, 1.25-2.66). Parous individuals were more likely to have unanticipated cardiac surgery (28.2% vs 18.1%; P=.003). No other individual components of the primary outcome were statistically different between parous and nulliparous individuals in cross-sectional comparisons. The association between pregnancy and the primary outcome was similar in a sensitivity analysis that adjusted for cardiac lesion type (hazard ratio, 1.61; 95% confidence interval, 1.10-2.36). CONCLUSION: Among individuals with congenital heart disease, pregnancy was associated with an increase in subsequent long-term adverse cardiac outcomes. These data may inform counseling of individuals with congenital heart disease who are considering pregnancy.

Obstetrical outcomes in cases of maternal heart disease with a risk of cardiac decompensation: A retrospective study since the establishment of a multidisciplinary consultation meeting "heart and pregnancy".

BACKGROUND: Pregnant women with chronic heart failure (CHF) are at increased risk for cardiac complications. However, the frequency of obstetrical and neonatal complications in pregnant women with CHF remains unclear. OBJECTIVE: The objective of our study was to describe obstetrical and neonatal outcomes in pregnant with CHF. METHOD: This single-center retrospective cohort study involves pregnant women with a CHF who delivered at Jeanne de Flandre, the Lille's university hospital, from 2017 to 2021. The frequency of obstetrical, neonatal, and cardiovascular complications was collected. RESULT: During this period, we identified 26 pregnant women with a CHF. The main cardiac diseases responsible for CHF were cardiomyopathies (53.8%) and congenital heart disease (46.2%). Acute heart failure occurred in 30.8% of the cases and mainly concerned patients with no follow-up of their heart disease. The main obstetrical complications were fetal growth restriction (38.5%) and premature rupture of fetal membranes (19.2%). The 26 pregnancies comprised 25 live births and 1 stillbirth. Newborn infants were delivered via cesarean in 69.2%. Of the live births, 60% were preterm at a median gestational age of 36 (34-38) weeks. CONCLUSION: Pregnant women with CHF had a higher risk for obstetrical and neonatal outcomes.

Mode of delivery and peripartum outcome in women with heart disease according to the ESC guidelines: an Italian multicenter study.

INTRODUCTION: The European Society of Cardiology (ESC) guidelines (GL) provide indications on the mode of delivery in women with heart disease. However available data suggests that the rate of Cesarean Delivery (CD) is high and widely variable among such patients. In this study, we aimed to investigate the degree of adherence to the ESC recommendations among women delivering in four tertiary maternity services in Italy and how this affects the maternal and neonatal outcomes. MATERIAL AND METHODS: Retrospective multicenter cohort study including pregnant women with heart disease who gave birth between January 2014 and July 2020. Composite adverse maternal outcome (CAM) was defined by the occurrence of one or more of the following: major postpartum hemorrhage, thrombo-embolic or ischemic event, de novo arrhythmia, heart failure, endocarditis, aortic dissection, need for re-surgery, sepsis, maternal death. Composite Adverse Neonatal outcome (CAN) was defined as cord arterial pH <7.00, APGAR <7 at 5 min, admission to the intensive care unit, and neonatal death. We compared the incidence of CAM and CAN between the cases with planned delivery in accordance (group "ESC consistent") or in disagreement (group "ESC not consistent") with the ESC GL. RESULTS: Overall, 175 women and 181 liveborn were included. A higher frequency of CAN was found when delivery was not planned accordingly to the ESC guidelines [("ESC consistent" 9/124 (7.2%) vs "ESC not consistent" 13/57 (22.8%) p = 0.002 OR 3.74 (CI 95% 1.49-9.74) , while the occurrence of CAM was comparable between the two groups. At logistic regression analysis, the gestational age at delivery was the only parameter independently associated with the occurrence of CAN (p = 0.006). CONCLUSION: Among pregnant women with heart disease, deviating from the ESC guidelines scheduling cesarean delivery does not seem to improve maternal outcomes and it is associated with worse perinatal outcomes, mainly due to lower gestational age at birth.

The causal association between maternal smoking around birth on childhood asthma: A Mendelian randomization study.

To explore the causal relationship between maternal smoking around birth and childhood asthma using Mendelian randomization (MR). Using the data from large-scale genome-wide association studies, we selected independent genetic loci closely related to maternal smoking around birth and maternal diseases as instrumental variables and used MR methods. In this study, we considered the inverse variance weighted method (MR-IVW), weighted median method, and MR-Egger regression. We investigated the causal relationship between maternal smoking around birth and maternal diseases in childhood asthma using the odds ratio (OR) as an evaluation index. Multivariable MR (MVMR) included maternal history of Alzheimer's disease, illnesses of the mother: high blood pressure and illnesses of the mother: heart diseaseas covariates to address potential confounding. Sensitivity analyses were evaluated for weak instrument bias and pleiotropic effects. It was shown with the MR-IVW results that maternal smoking around birth increased the risk of childhood asthma by 1.5% (OR = 1.0150, 95% CI: 1.0018-1.0283). After the multivariable MR method was used to correct for relevant covariates, the association effect between maternal smoking around birth and childhood asthma was still statistically significant (P < 0.05). Maternal smoking around birth increases the risk of childhood asthma.

Preconception considerations.

Heart disease complicates 1-2% of pregnancies, and in preparation for pregnancy, these women should receive comprehensive preconception counseling. Risks to the mother and potential risks to the offspring secondary to the type and severity of maternal cardiac disease, its inheritance pattern, required medical therapy, and palliative or corrective procedures that may be needed must be considered. Life expectancy and the ability to care for a child are somber issues that must be addressed when serious cardiac conditions exist. Pregnancy is still contraindicated in women with pulmonary hypertension, severe systemic ventricular dysfunction, dilated aortopathy, and severe left-sided obstructive lesions, but advances in medical and surgical management have resulted in an increasing number of patients with cardiac disorders who are interested in pursuing pregnancy. A multidisciplinary approach can best determine whether acceptable outcomes can be expected and what management strategies may improve the prognosis for women with heart disease and their offspring.

A Clinical Study of Maternal Heart Disease in Pregnancy / 대한주산의학회잡지

OBJECTIVE:To assess the pregnancy outcomes complicated by maternal heart diseases. METHODS:From 1995 to 2006, medical records of pregnant women who had received full antenatal care at Kangnam St. Marys Hospital and Our Lady of Mercy Hospital with maternal heart diseases were reviewed. RESULTS:Forty one deliveries from 39 women were enrolled for analysis. 11 (26.7%) cases of the heart diseases were of rheumatic origin, 22 (53.7%) cases had arrhythmic disease, 3 (7.3%) cases had congenital heart disease, and the remaining 5 (12.3%) cases were consisted of miscellaneous diseases such as ischemic heart disease and congestive heart failure. There were 4 (9.8%) cases of pulmonary edema which had occurred as maternal complication during pregnancy. One case was a twin pregnancy. All of them were in New York Heart Association (NYHA) functional classes I, II before, during, and after delivery. Mean gestational age at birth and birth weight were 38.6 weeks and 3,157 g respectively. Neonatal congenital heart disease was shown in only one case with tetralogy of Falot and the other fetal anomaly was multicystic dysplastic kidney. CONCLUSION:Our results indicate that successful pregnancy outcome in patients with maternal heart disease would be possible in NYHA functional classes of I and II without any increased risk of complications.

Pregnancies Complicated by Maternal Heart Diseases / 대한산부인과학회잡지

OBJECTIVE: To assess the pregnancy outcomes complicated by maternal heart diseases. METHODS: From 1994 to 2001, medical records of pregnant women who had reached at least 20 weeks of gestation with maternal heart diseases were reviewed. RESULTS: 224 deliveries of 195 women were enrolled in this study. In 117 (52.2%) cases the heart diseases were of rheumatic origin, in 96 (42.9%) cases congenital, and the remaining 11 (4.9%) cases were miscellaneous group that included arrhythmia, cardiomyopathy, and mitral valve prolapse. There were 2 (0.9%) cases of maternal death related to pregnancy. Majority (91.9%) were in New York Heart Association functional classes I, II before, during, and after delivery. Mean gestational age at birth and birth weight were 37.9 weeks and 2883 gm. Perinatal mortality rate was 17.9/1000 and the rate of congenital malformation was 2.7%. Recurrence risk of neonatal congenital heart disease was 2.1%. CONCLUSION: Most complications were developed in the pregnancies complicated by maternal heart diseases with New York Heart Association functional classes III, IV. Functional status of the pregnant women is the important risk factor in maternal and fetal outcomes.