Related Experiment Video
Updated: Mar 6, 2026

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound 30/45MHZ System
Published on: May 5, 2018
Genetics and Genomics of Congenital Heart Disease
Samir Zaidi1, Martina Brueckner2
1From the Departments of Genetics (S.Z.) and Pediatrics and Genetics (M.B.), Yale University School of Medicine, New Haven CT.
Insights
Genetic discoveries reveal the complex causes of congenital heart disease (CHD), the most common birth defect. Understanding these genetic factors improves cardiac development knowledge and patient care.
Area of Science:
- Cardiovascular Genetics
- Developmental Biology
Background:
- Congenital heart disease (CHD) is the most common birth defect.
- Advances in genomic technologies have identified genetic causes for a significant portion of CHD cases.
- More adults than children now live with CHD due to improved medical and surgical management.
Purpose of the Study:
- To review the evidence for genetic causes of CHD.
- To discuss both monogenic and complex genetic mechanisms underlying CHD.
- To highlight the implications of CHD genetic studies for understanding cardiac development and clinical care.
Main Methods:
- Review of current scientific literature on CHD genetics.
- Analysis of data from genomic studies identifying genetic variants associated with CHD.
- Discussion of biological pathways implicated in CHD pathogenesis.
Main Results:
- Genomic technologies have uncovered the genetic basis for a substantial fraction of CHD.
- CHD genetics exhibit significant complexity, involving both monogenic and polygenic factors.
- Genetic studies have identified key biological pathways crucial for cardiac development.
Conclusions:
- Genetic factors play a critical role in the etiology of CHD.
- Understanding CHD genetics enhances knowledge of cardiac development and informs clinical genetic evaluation.
- Continued research into CHD genetics is essential for improving patient outcomes and management strategies.
Abstract:
Congenital heart disease is the most common birth defect, and because of major advances in medical and surgical management, there are now more adults living with congenital heart disease (CHD) than children. Until recently, the cause of the majority of CHD was unknown. Advances in genomic technologies have discovered the genetic causes of a significant fraction of CHD, while at the same time pointing to remarkable complexity in CHD genetics. This review will focus on the evidence for genetic causes underlying CHD and discuss data supporting both monogenic and complex genetic mechanisms underlying CHD. The discoveries from CHD genetic studies draw attention to biological pathways that simultaneously open the door to a better understanding of cardiac development and affect clinical care of patients with CHD. Finally, we address clinical genetic evaluation of patients and families affected by CHD.
Related Concept Videos
Pharmacogenomics: Identification of New Drug Targets
Animal Mitochondrial Genetics
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Incomplete Dominance
Principles of Pharmacogenetics: Types of Genetic Variants
Cardiomyopathy I: Introduction and Classification

