Pregnancy-Related Heart Attacks Show More Severe Outcomes in Major Registry Study

Spontaneous coronary artery dissection during pregnancy represents a particularly dangerous form of heart attack that disproportionately affects women, according to new findings from a large multicenter registry study. This research matters because it identifies specific risk factors and outcomes that could help women and their doctors make more informed decisions about pregnancy planning and cardiovascular monitoring.

Researchers analyzed data from 907 women with SCAD history, comparing 98 cases that occurred during pregnancy with 809 non-pregnancy cases. The study tracked detailed reproductive histories, cardiovascular outcomes, and recovery patterns between 2019-2024 across multiple medical centers.

Women with pregnancy-associated SCAD showed significantly worse outcomes: they were three times more likely to suffer complete heart attacks (STEMI), nearly twice as likely to have multiple blood vessels affected, and four times more likely to experience severe heart function decline. Recovery was also slower, with less improvement in heart pumping ability after one year.

Several risk factors emerged as particularly important. Women with pregnancy-related SCAD were twice as likely to have used fertility treatments, nearly twice as likely to have had more than five pregnancies, and twice as likely to have experienced preeclampsia. These findings suggest that certain pregnancy complications and reproductive patterns may increase cardiovascular vulnerability.

For health optimization, this research emphasizes the importance of cardiovascular risk assessment before pregnancy, especially for women using assisted reproductive technology or those with histories of pregnancy complications. While most cases were managed conservatively with medications rather than procedures, the slower recovery highlights the need for extended cardiac monitoring and rehabilitation support for affected women.