Key result
Pregnancy Heart Team care observes a ~16% cardiac event rate, peaking in the third trimester.
Why the study?
Cardiac disease in pregnancy carries significant maternal and fetal risks, prompting the use of a registry to assess the role of a Pregnancy Heart Team in patient care.
Observational (n=111)
No
A dedicated cardiac registry for pregnant women highlights that cardiac events occur in 16.4% of cases, predominantly in the third trimester, underscoring the need for structured multidisciplinary care.
Observational registry data supports Pregnancy Heart Team models for cardiac pregnancies; leaves open whether such care reduces events versus standard management.
BACKGROUND: Cardiac disease in pregnancy is linked to significant maternal and fetal risks. A cardiac registry provides a way to systematically collect data on pregnant women with cardiac disease, enabling analysis of outcomes, care approaches, and the development of improved clinical protocols. AIM: To assess the role of a Pregnancy Heart Team (PHT) in managing cardiac disease during pregnancy, using data from a newly established registry at the National Maternity Hospital (NMH). METHODS: This was a prospective study analysing registry data from women attending the joint obstetric-cardiology clinic at NMH between January 2021 and September 2024. The registry included pregnant and pre-pregnancy patients. Demographics, cardiac diagnoses, risk classification, and maternal and neonatal outcomes were collected. RESULTS: A total of 111 women with cardiac disease were captured, encompassing 153 pregnancies. Most women (87.6%, n = 134) had pre-existing cardiac disease, while 12.4% (n = 19) were newly diagnosed during pregnancy. Rhythm disorders were the most common diagnosis (60.3%, n = 91). 12.4% (n = 19) of women received pre-conceptual counselling. Risk stratification using the modified World Health Organization (mWHO) classification showed that 33.3% (n = 44) were class I, 34.1% (n = 45) class II, 25% (n = 33) class II-III, and 7.6% (n = 10) class III; no women were classified as mWHO IV. Cardiac events occurred in 16.4% (n = 26), most frequently in the third trimester (42.3%, n = 11), highlighting this as a high-risk period. CONCLUSIONS: Registry findings highlights the importance of early, structured PHT care, to ensure optimal maternal and fetal outcomes.
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Smyth et al. (2026) conducted an observational in Cardiac disease in pregnancy (n=111). Pregnancy Heart Team (PHT) care was evaluated on Cardiac events. Pregnancy Heart Team care for 111 women with cardiac disease across 153 pregnancies observed a 16.4% rate of cardiac events, most frequently occurring in the third trimester.
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