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Updated: Apr 17, 2026
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Published on: May 5, 2018
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Inheritance of congenital heart disease
Summary
Congenital heart defects (CHD) are common developmental anomalies and a leading cause of newborn mortality. Prevalence estimates vary, but CHD affects approximately 0.4-1.0% of live births, with higher rates in pregnancies overall.
Area of Science:
- Pediatrics
- Developmental Biology
- Cardiology
Background:
- Congenital heart defects (CHD) represent the most frequent developmental anomalies.
- CHD is the primary noninfectious cause of mortality in neonates.
- Estimates suggest 0.4% to 1.0% of live-born infants (4-10 per 1000) have cardiac malformations.
Approach:
- The abstract synthesizes epidemiological data on CHD prevalence.
- It references findings from the European Registration of Congenital Anomalies (EUROCAT).
- It includes estimations from Hoffman regarding CHD occurrence across different pregnancy outcomes.
Key Points:
- Approximately 0.4% to 1.0% of live births exhibit cardiac malformations.
- Forty percent of these congenital heart defects are diagnosed within the first year of life.
- The EUROCAT registry reported a prevalence of 58.9 per 10,000 live births in the northern Netherlands (0.6%).
Conclusions:
- The true prevalence of CHD in pregnancies may be as high as 5.3% (53 per 1000).
- This includes occurrences in spontaneous abortions (20%), stillbirths (10%), and live births (1%).
- Understanding the full spectrum of CHD prevalence is crucial for public health and clinical management.
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