Pregnancy in women with left-to-right cardiac shunts: Any risk?

Multimodality Imaging of Patent Ductus Arteriosus Complicated by Severe Pulmonary Arterial Hypertension in a Pregnant Patient

“… 1 Additionally, there is an increased risk of thromboembolic events in the third trimester, which may predominantly affect the pulmonary arterial circulation in the case of PDA, due to an increase in hypercoagulable proteins seen during this period. 8 …”