According to a study published in the journal JAMA, narrowing and calcification of the blood vessels of the heart are more common in women previously affected by pregnancy complications.

Although pregnancy complications are now more widely recognized as a new type of risk factor for heart disease, it is still unclear how this information may be most effectively applied in the healthcare industry. For the study, researchers enrolled 10,528 women from the National Medical Birth Register who later took part in the SCAPIS (Swedish Cardiopulmonary Bioimage Study).

To identify blood vessel calcification, narrowing, and other symptoms of heart disease, all the women underwent coronary computed tomography angiography. Pre-eclampsia, high blood pressure during pregnancy (gestational hypertension), preterm delivery, gestational diabetes, and infants born small for gestational age were five typical problems of pregnancy that the researchers looked into for signs of heart disease.

In women whose pregnancies had not been complicated, the prevalence of coronary artery constriction was 2%, as opposed to 5% in women who had previously experienced pre-eclampsia or pregnancy-induced hypertension. 

(Source: https://medicalxpress.com/news/2023-02-complications-pregnancy-linked-heart-disease.html )