Vol. 6, Issue 2, Part C (2024)

Congenital heart disease (CHD) remains one of the most common birth defects, with genetic factors playing a crucial role in its etiology. Recent advances in genetic research have significantly enhanced the understanding of the underlying genetic components contributing to CHD. This review explores the current state of knowledge regarding the genetic causes of CHD, focusing on inherited genetic variations, mutations, and syndromic associations. It also evaluates the implications of these findings in clinical practice, emphasizing the importance of early genetic screening and counseling for families at risk. While the contribution of environmental factors is well-documented, the genetic basis remains a primary area of investigation. Studies indicate that multiple genes, including those associated with chromosomal abnormalities, can predispose individuals to CHD. The paper highlights key genetic syndromes such as Down syndrome and DiGeorge syndrome, which have strong associations with CHD. Furthermore, the review examines emerging molecular techniques, including whole-exome sequencing and genome-wide association studies (GWAS), which have identified novel genetic loci linked to CHD. The review also addresses the challenges in translating genetic discoveries into clinical practice and the need for personalized medicine to optimize treatment strategies. By synthesizing current literature, this article offers an in-depth perspective on the genetic factors influencing CHD and provides a foundation for future research in this critical field. Understanding the genetic underpinnings of CHD is essential for improving diagnostic accuracy, prenatal care, and therapeutic interventions, ultimately contributing to better patient outcomes. Genetic research continues to evolve, with the potential to uncover further insights into the complex interactions between genetic predisposition and environmental factors.