Prenatal Depression May Be Linked to Cardiovascular Disease after Childbirth

New research published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association
Cardiovascular disease is the primary cause of maternal deaths related to pregnancy in high-income countries
Cardiovascular disease is the primary cause of maternal deaths related to pregnancy in high-income countriesPixabay
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New research published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association, indicates that individuals diagnosed with depression during pregnancy were more likely to be diagnosed with cardiovascular disease within two years after giving birth than those without depression.

The adverse impacts of depression on cardiovascular well-being among the overall populace are thoroughly established: males and females suffering from depression are more prone to developing heart ailments in the future, and earlier investigations have shown that roughly 20% of people undergo depression while pregnant. Nevertheless, inadequate research has been carried out on antenatal depression as a distinct risk element for cardiovascular illness.

Complications that arise during pregnancy, such as antenatal depression, have a long-lasting impact on cardiovascular fitness.

"Our focus should be on leveraging pregnancy as a gateway to forthcoming well-being," expressed the principal investigator Christina M. Ackerman-Banks, M.D., who holds the position of an assistant professor in obstetrics and gynecology-maternal fetal medicine at Baylor College of Medicine and Texas Children's Hospital situated in Houston. "Complications that arise during pregnancy, such as antenatal depression, have a long-lasting impact on cardiovascular fitness. The phase following childbirth presents a chance to offer guidance and carry out screening measures for cardiovascular ailments to avoid such repercussions."

This investigation is the initial populace-based research that centers mainly on exploring the correlation between antenatal depression and cardiovascular disease diagnosis in the postpartum stage during the first two years after delivery. The team of researchers examined information obtained from the Maine Health Data Organization's All Payer Claims Database, covering more than 100,000 individuals who gave birth in Maine from 2007 to 2019. The primary objective of the researchers was to gauge the collective probability of fresh cardiovascular disease diagnoses within two years following childbirth.

The research team made adjustments for potential factors that could skew the results, including smoking, age at the time of delivery, pre-pregnancy diabetes, pre-pregnancy depression, pre-pregnancy hypertension, and preeclampsia. Subsequently, the researchers approximated the probability of developing six significant cardiovascular diseases, namely, heart failure, ischemic heart disease, arrhythmia/cardiac arrest, cardiomyopathy, stroke, and high blood pressure, within two years of childbirth.

The assessment discovered that the predicted collective risk of cardiovascular diseases, such as heart failure, ischemic heart disease, cardiomyopathy, arrhythmia/cardiac arrest, or newly diagnosed high blood pressure, within two years following childbirth, was substantially greater for individuals with depression in comparison to those lacking depression. Expectant mothers with depression experienced:

  • an 83% higher risk of ischemic heart disease (issues caused by narrowed heart arteries supplying blood to the heart muscle);

  • a 60% higher risk of arrhythmia/cardiac arrest;

  • a 61% higher risk of cardiomyopathy; and

  • a 32% higher risk of new high blood pressure diagnosis.

Additionally, an analysis excluding those with high blood pressure during pregnancy (preeclampsia or gestational hypertension) found that individuals with prenatal depression had:

  • an 85% higher risk for arrhythmia/cardiac arrest;

  • an 84% higher risk of ischemic heart disease;

  • a 42% higher risk of stroke;

  • a 53% higher risk of cardiomyopathy; and

  • a 43% higher risk of a new high blood pressure diagnosis.

As per Ackerman-Banks, "Despite eliminating individuals with hypertensive pregnancy conditions, those experiencing depression during pregnancy still encountered notably greater risk of ischemic heart disease, arrhythmia, stroke, cardiomyopathy, and newly developed persistent hypertension following childbirth."

According to the American Heart Association's 2023 Statistical Update, cardiovascular disease is the primary cause of maternal deaths related to pregnancy in high-income countries, including the U.S. The study authors pointed out that other pregnancy-related elements that may lead to the onset of cardiovascular disease could encompass chronic inflammation and elevated stress-associated hormones.

Ackerman-Banks suggested that individuals diagnosed with prenatal depression should be mindful of its impact on their cardiovascular health in the long run. Furthermore, they should undertake measures to screen for other potential risk factors and consult their primary care physician to implement preventive measures against cardiovascular disease. It is also advisable to undergo screening for Type 2 diabetes and high cholesterol, initiate an exercise routine, adopt a healthy diet, and quit smoking.

The authors of the study recognized that although the sample size was substantial, the findings relied on medical claims data, indicating that diagnosis of medical conditions could not be authenticated. Additionally, details pertaining to race, ethnicity, and physical activity levels were unavailable. The study authors recommend that future research exploring interventions incorporated into prenatal and postpartum care could potentially address these limitations and provide insights into current recommendations. (PB/Newswise)

Cardiovascular disease is the primary cause of maternal deaths related to pregnancy in high-income countries
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