Congenital heart disease and aneuploidy
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Updated: Aug 20, 2026

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound (30/45MHZ) System
Published on: May 5, 2018
R C Wimalasundera1, H M Gardiner
1Centre for Fetal Care, Queen Charlotte's and Chelsea Hospital, London, UK. r.wimalasundera@imperial.ac.uk
Insights
Congenital heart disease (CHD) is frequently diagnosed prenatally. Many cases of CHD are linked to fetal aneuploidy, requiring careful counseling for parents regarding prognosis and management.
Area of Science:
- Prenatal Diagnosis
- Genetics
- Cardiology
Background:
- Congenital heart disease (CHD) is a common prenatal diagnosis via ultrasound.
- Up to 33% of fetuses with CHD also have fetal aneuploidy.
- Specific cardiac lesions correlate with particular chromosomal abnormalities.
Purpose of the Study:
- To review the frequency and types of aneuploidy associated with common CHD.
- To discuss the management and prognosis of fetuses with CHD and aneuploidy.
- To inform clinicians for appropriate parental counseling.
Main Methods:
- Review of existing literature on CHD and aneuploidy associations.
- Analysis of data on specific cardiac lesions and chromosomal abnormalities.
- Discussion of multidisciplinary team management strategies.
Main Results:
- Significant associations exist between certain CHD and specific aneuploidies.
- Most fetuses with CHD and aneuploidy present with extra-cardiac anomalies.
- Multidisciplinary team approach is crucial for comprehensive care.
Conclusions:
- Clinicians must be aware of aneuploidy associations with CHD.
- Accurate counseling on prognosis and management is essential for parents.
- Understanding these links improves care for affected fetuses.
Abstract:
Congenital heart disease (CHD) is one of the commonest prenatal diagnoses made on routine ultrasound screening. Overall, up to 33% of CHD are associated with fetal aneuploidy. However, some specific cardiac lesions have a significantly greater association with particular chromosomal abnormalities. The majority of fetuses with CHD and aneuploidy also have extra-cardiac anomalies and are best managed by a multidisciplinary team where the management and prognosis of the cardiac defect can be discussed in the context of the baby as a whole. It is therefore important for clinicians involved in the management of fetuses with CHD to be aware of the association of aneuploidy as well as the prognosis and management of these cases, so that they can appropriately counsel the parents. In this chapter, we review the frequency and types of aneuploidy associated with the commonly diagnosed CHD and discuss their management.
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