Genetic Basis for Congenital Heart Defects: Current Knowledge A Scientific Statement From the American Heart Association Congenital Cardiac Defects Committee, Council on Cardiovascular Disease in the Young (original) (raw)
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Circulation, 2007
The intent of this review is to provide the clinician with a summary of what is currently known about the contribution of genetics to the origin of congenital heart disease. Techniques are discussed to evaluate children with heart disease for genetic alterations. Many of these techniques are now available on a clinical basis. Information on the genetic and clinical evaluation of children with cardiac disease is presented, and several tables have been constructed to aid the clinician in the assessment of children with different types of heart disease. Genetic algorithms for cardiac defects have been constructed and are available in an appendix. It is anticipated that this summary will update a wide range of medical personnel, including pediatric cardiologists and pediatricians, adult cardiologists, internists, obstetricians, nurses, and thoracic surgeons, about the genetic aspects of congenital heart disease and will encourage an interdisciplinary approach to the child and adult with congenital heart disease. (Circulation. 2007;115:3015-3038.)
2007
The intent of this review is to provide the clinician with a summary of what is currently known about the contribution of genetics to the origin of congenital heart disease. Techniques are discussed to evaluate children with heart disease for genetic alterations. Many of these techniques are now available on a clinical basis. Information on the genetic and clinical evaluation of children with cardiac disease is presented, and several tables have been constructed to aid the clinician in the assessment of children with different types of heart disease. Genetic algorithms for cardiac defects have been constructed and are available in an appendix. It is anticipated that this summary will update a wide range of medical personnel, including pediatric cardiologists and pediatricians, adult cardiologists, internists, obstetricians, nurses, and thoracic surgeons, about the genetic aspects of congenital heart disease and will encourage an interdisciplinary approach to the child and adult with...
Genetic aspects in the medical approach of congenital heart defects
Revista M�dica del Hospital General de M�xico
Congenital heart defects (CHDs) affect 6-11.1/1000 newborns; they are the most common type of birth defect and constitute a public health problem; they can be isolated or associated with other congenital malformations or to a syndromic disease. Their etiology has not been completely elucidated; most isolated cases are multifactorial with genetic and environmental factors involved. The CHDs that form part of a syndrome may be caused by chromosomal aberrations, monogenic alterations, and/or genomic disorders. Other factors in their etiology are epigenetic changes and stochastic effects. Their clinical approach is complex, and the diagnostic potentiality of the genetic analyses from the banding karyotype to the use of genomic medicine techniques should be considered by the multidisciplinary team taking care of these patients, to offer the best personalized treatment and management in a dignified manner, including the genetic assessment.
Genetic Perspective of the Congenital Heart Disease
Pakistan Heart Journal
Congenital heart diseases (CHDs) are the structural abnormalities that may occur in the heart, greater veins and arteries or may include the septum between the ventricles and atria that mainly happen during the developmental stages of the heart in the neonates. It is the most frequent birth defect affect 1% of all infants.1,2 The CHDs includes following major categories: septation defects, cyanotic heart diseases and left sided obstruction defects. The septation defects can be further divided into ventricular septal defects (VSDs), atrioventricular septal defects (AVSDs) and atrial septation defects (ASDs). The cyanotic heart disease occurs due to many defects such as tetralogy of Fallot (TOF), Ebstein’s anomaly of the tricuspid valve, double outlet right ventricle, pulmonary atresia, total anomalous pulmonary venous connection and tricuspid atresia. The left sided obstructive lesions involves the hypoplastic left heart syndrome, interrupted aortic arch, aortic stenosis, mitral sten...
Congenital Heart Disease Entering a New Era of Human Genetics
The opinions expressed in this Commentary are not necessarily those of the editors or of the American Heart Association. Commentaries serve as a forum in which experts highlight and discuss articles (published here and elsewhere) that the editors of Circulation Research feel are of particular significance to cardiovascular medicine. Commentaries are edited by Aruni Bhatnagar & Ali J. Marian.
Genetic Syndromes associated with Congenital Heart Disease
Korean circulation journal, 2015
Recent research has demonstrated that genetic alterations or variations contribute considerably to the development of congenital heart disease. Many kinds of genetic tests are commercially available, and more are currently under development. Congenital heart disease is frequently accompanied by genetic syndromes showing both cardiac and extra-cardiac anomalies. Congenital heart disease is the leading cause of birth defects, and is an important cause of morbidity and mortality during infancy and childhood. This review introduces common genetic syndromes showing various types of congenital heart disease, including Down syndrome, Turner syndrome, 22q11 deletion syndrome, Williams syndrome, and Noonan syndrome. Although surgical techniques and perioperative care have improved substantially, patients with genetic syndromes may be at an increased risk of death or major complications associated with surgery. Therefore, risk management based on an accurate genetic diagnosis is necessary in ...
European journal of human genetics : EJHG, 2015
The etiology of congenital heart defect (CHD) combines environmental and genetic factors. So far, there were studies reporting on the screening of a single gene on unselected CHD or on familial cases selected for specific CHD types. Our goal was to systematically screen a proband of familial cases of CHD on a set of genetic tests to evaluate the prevalence of disease-causing variant identification. A systematic screening of GATA4, NKX2-5, ZIC3 and Multiplex ligation-dependent probe amplification (MLPA) P311 Kit was setup on the proband of 154 families with at least two cases of non-syndromic CHD. Additionally, ELN screening was performed on families with supravalvular arterial stenosis. Twenty-two variants were found, but segregation analysis confirmed unambiguously the causality of 16 variants: GATA4 (1 × ), NKX2-5 (6 × ), ZIC3 (3 × ), MLPA (2 × ) and ELN (4 × ). Therefore, this approach was able to identify the causal variant in 10.4% of familial CHD cases. This study demonstrated...
Genetic study in congenital heart defects
International Journal of Research in Medical Sciences
Background: Congenital heart diseases (CHD) are relatively common with a prevalence ranging from 3.7 to 17.5 per 1000 live births. Little is known about genetic link with respect to congenital heart disease. Iroquoise (Irx) homeobox genes have been widely studied and their expression in both developing and adult heart. Author tried to study the role of irx4 and irx5 genes in structural congenital heart disease, keeping the focus on study reported by Cheng Z et al.Methods: Author studied reported mutation site sequences in 25 various congenital heart disease patients and control healthy relatives of patients. It is a unique study and there has not been such a study reported in literature till date. Besides comparison with healthy related controls, author took cardiac tissue biopsy in patients while doing corrective cardiac surgery. However, blood samples were taken from controls due to ease of feasibility.Results: Although, there were no sequence variations in the studied exon region...