Rising rates of high blood pressure complications in pregnancy


An analysis of CDC data presented at American Heart Association's Scientific Sessions 2020 suggests rates of high blood pressure complications during pregnancy nearly doubled during a period lasting from 2008-2017.

While the progress made in the fight against cardiovascular disease in the United States has been regarded as a historic achievement, new research suggests not all areas of cardiovascular care have not seen the same improvements over time.

An analysis of more than 45 million live births from Centers for Disease Control and Prevention (CDC) Natality Database, results of the study indicate the rate of high blood pressure complications during pregnancy nearly doubled between 2008 and 2017, with investigators noting increases appeared more severe in rural areas.

“We were surprised to see the dramatic increase in the percentage over the last 10 years of women entering pregnancy with hypertension. It was also shocking to see women as young as 15 to 24 years old with high blood pressure, and the statistics were worse in rural areas, leading us to be concerned these numbers may, in part, be driven by hospital closures and difficulty accessing care,” said the study’s lead author Natalie A. Cameron, MD, a resident in the department of medicine at Northwestern University’s Feinberg School of Medicine in Chicago, in a statement from the American Heart Association (AHA).

Presented at the AHA’s Scientific Sessions 2020, the Northwestern University-led study was designed to provide clinicians with greater information in an effort to tailor prevention and policy strategies for expectant mothers. Using the CDC Natality Database, investigators performed a cross-sectional search with the hope of identifying all live births to women aged 15-44 years from 2008-2017.

In total, investigators identified 47,949,381 live births for inclusion in their analysis. For the purpose of their analysis, investigators calculated rates of pre-pregnancy hypertension per 1000 live births overall and according to the type of community the women lived in—annual percentage change was also calculated in order to compare yearly rates between rural and urban settings.

Upon analysis, rates of pre-pregnancy hypertension increased from 13.7 to 23.7 per 1000 live births among women in rural areas from 2007-2018 and 10.5 to 20.0 per 1000 live births among those in urban areas during the same time period.

Continue reading on Practical Cardiology.

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