Women who experience specific pregnancy complications face a significantly higher long-term risk of developing peripheral artery disease (PAD), according to a study of more than 2 million deliveries published in PLOS Medicine. Researchers found that conditions such as gestational diabetes, preterm delivery, and hypertensive disorders serve as early clinical markers for vascular health, with elevated risks persisting for up to 46 years after birth.
The Link Between Pregnancy Outcomes and Vascular Health
A Swedish cohort study led by Casey Crump, MD, PhD, MPH, of the University of Texas Health Science Center in Houston, tracked over 2.2 million women from 1973 to 2015. The findings suggest that five specific adverse pregnancy outcomes—gestational diabetes, small for gestational age (SGA) infants, preterm delivery, preeclampsia, and other hypertensive disorders—are independently associated with a higher incidence of PAD later in life.
The highest risk increase was observed in women with a history of gestational diabetes, who showed a 3.8-fold higher relative rate of PAD 30 to 46 years after delivery. Other significant associations included:
- Small for gestational age: 1.7-fold increase
- Preterm delivery: 1.6-fold increase
- Other hypertensive disorders: 1.6-fold increase
- Preeclampsia: 1.3-fold increase
Why Genetics Don’t Tell the Whole Story
To determine if familial factors were responsible for the correlation, researchers conducted co-sibling analyses. By comparing sisters, the team aimed to see if shared genetics or childhood environments explained the elevated PAD risk. The results remained consistent, indicating that the vascular damage or physiological stress associated with these pregnancy complications acts as a primary, independent risk factor rather than a byproduct of family history.
“Despite being clinically distinct outcomes, each was independently linked with higher long-term risk of PAD, suggesting shared underlying vascular pathways,” Crump stated.
Did you know?
The study found that women who experienced multiple adverse pregnancy outcomes faced a cumulative increase in risk, further emphasizing the need for early identification and long-term monitoring.
Frequently Asked Questions
Does a history of preeclampsia guarantee I will develop PAD?
It serves as an indicator that increased awareness and screening are warranted.
Why is PAD often overlooked in women?
This data highlights the necessity of recognizing pregnancy-related complications as valid, long-term markers for women’s vascular health.
When should I start screening for PAD?
Clinical guidelines are evolving, but experts like Dr. Crump recommend that women with a history of adverse pregnancy outcomes discuss their cardiovascular risk with their primary care physician to establish a personalized monitoring schedule.
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