Related Experiment Video
Updated: May 13, 2026
04:36
Noninvasive Electrocardiography in the Perinatal Mouse
Published on: June 12, 2020
Long-Term Cardiovascular Outcomes Following New-Onset Arrhythmias During Pregnancy
Sanya Dhama1, Yong Hao Yeo2, Mohammed Uddin1
1School of Medicine, University of California-Riverside, Riverside, California, USA.
Pacing and Clinical Electrophysiology : PACE
|May 12, 2026
Summary
Pregnant individuals experiencing new arrhythmias face significantly higher 5-year risks for major cardiovascular events, including heart failure and heart attack. This highlights the need for enhanced postpartum cardiovascular monitoring.
Area of Science:
- Cardiology
- Obstetrics
- Epidemiology
Background:
- Arrhythmias during pregnancy are increasingly common and linked to acute cardiovascular issues.
- Long-term cardiovascular effects of arrhythmias in pregnancy are not well understood.
- This study addresses the gap in knowledge regarding 5-year cardiovascular outcomes after pregnancy arrhythmias.
Purpose of the Study:
- To investigate the 5-year cardiovascular outcomes in individuals who experienced new-onset arrhythmias during pregnancy.
- To compare cardiovascular risks between pregnant individuals with and without arrhythmias.
Main Methods:
- Retrospective cohort study using TriNetX data from 2015-2020.
- Included pregnant individuals (≥18 years) admitted for delivery.
- Propensity score matching (1:1) to control for confounding factors.
- Assessed composite cardiovascular outcomes, heart failure (HF), cerebrovascular accident (CVA), and acute myocardial infarction (AMI).
Main Results:
- 0.9% (8507/886,732) of deliveries involved incident arrhythmias.
- Individuals with pregnancy arrhythmias had significantly higher 5-year risks: composite outcomes (RR 3.82), HF (RR 4.48), CVA (RR 2.04), AMI (RR 4.80) (all P < 0.01).
- Elevated risks were observed across age groups, especially in those ≥35 years.
Conclusions:
- New-onset arrhythmias during pregnancy are associated with a substantially increased 5-year risk of adverse cardiovascular events.
- This research emphasizes the critical need for extended cardiovascular surveillance postpartum.
- Current postpartum follow-up may be insufficient for individuals with pregnancy-related arrhythmias.
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