June 27, 2017
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Pregnancy complications increase risk for premature CHD in adults

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Babies born to mothers with pregnancy complications had an increased risk for premature CHD as young adults, according to a study in Heart Asia.

“These recent findings indicate that intrauterine factors, in tandem with genetic predisposition and postnatal environmental exposures, might contribute to a precocious atherosclerosis and increase the risk of later CVD,” Andriany Qanitha, a PhD candidate in the department of cardiothoracic surgery at the AMC Heart Centre at the University of Amsterdam, and colleagues wrote.

Researchers analyzed data from 153 patients (mean age, 47 years; 82% men) from Indonesia who had an ACS event before age 55 years. Patients with no evidence of significant atherosclerosis or a history of CVD were excluded. Those with ACS were matched with controls by sex, age and residential neighborhoods.

ACS events included non-STEMI, STEMI and unstable angina. Pregnancy complications were defined as preterm delivery, high BP and maternal infections. Patients reported on pregnancy complications with questionnaires. 

More mothers of adults in the case group had pregnancy complications (19.6%) compared with the control group (7.2%). Pregnancy complications were linked to premature ACS in adults (OR = 2.9; 95% CI, 1.4-6), which remained substantial in multivariable analyses (adjusted OR = 4.5; 95% CI, 1.1-18.1).

Subgroup analyses showed that maternal infections (adjusted OR = 5.2; 95% CI, 1.1-24.2) and high BP (adjusted OR = 5; 95% CI, 1-24.7) during pregnancy were associated with premature ACS.

“Our findings contribute to the understanding of the relationship between pregnancy complications and the clinically manifest CVD in adult offspring,” Qanitha and colleagues wrote. “However, further studies — ideally larger, prospective and longitudinal — are required to confirm the specific associations and to investigate the underlying mechanisms.” – by Darlene Dobkowski

Disclosures: The researchers report no relevant financial disclosures.