RT Book, Section A1 D'Alessandro, Lisa C.A. A1 Peyvandi, Shabnam A1 Schachtner, Susan A1 Goldmuntz, Elizabeth A2 Gleason, Marie Murphy A2 Rychik, Jack A2 Shaddy, Robert SR Print(0) ID 56745781 T1 Chapter 4. The Genetics of Abnormal Cardiac Development T2 Pediatric Practice: Cardiology YR 2012 FD 2012 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-176320-2 LK accesspediatrics.mhmedical.com/content.aspx?aid=56745781 RD 2024/04/20 AB Congenital heart disease (CHD) is the most common major birth defect, and yet its etiology remains poorly understood. It is generally accepted that both genetic and environmental factors contribute to abnormal cardiac development. With rapid advances in the field of genetics, specific gene alterations underlying named syndromes or groups of cardiac malformations continue to be identified. Our understanding of both positive and negative environmental influences also continues to evolve. Identifying the etiology of cardiac malformations is important, as environmental changes can aid normal development and information on inheritance patterns and recurrence rates aids early identification of at-risk individuals and informs future plans for individuals and families.