scholarly journals Prenatal Diagnosis by Array Comparative Genomic Hybridization in Fetuses with Cardiac Abnormalities

Genes ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 2021
Author(s):  
Katarzyna Kowalczyk ◽  
Magdalena Bartnik-Głaska ◽  
Marta Smyk ◽  
Izabela Plaskota ◽  
Joanna Bernaciak ◽  
...  
Keyword(s):  
Prenatal Diagnosis ◽  
Comparative Genomic Hybridization ◽  
Congenital Heart Defects ◽  
Congenital Heart ◽  
Array Cgh ◽  
Heart Diseases ◽  
Heart Defects ◽  
Comparative Genomic ◽  
Genomic Hybridization ◽  
Fetal Ultrasound

Congenital heart defects (CHDs) appear in 8–10 out of 1000 live born newborns and are one of the most common causes of deaths. In fetuses, the congenital heart defects are found even 3–5 times more often. Currently, microarray comparative genomic hybridization (array CGH) is recommended by worldwide scientific organizations as a first-line test in the prenatal diagnosis of fetuses with sonographic abnormalities, especially cardiac defects. We present the results of the application of array CGH in 484 cases with prenatally diagnosed congenital heart diseases by fetal ultrasound scanning (256 isolated CHD and 228 CHD coexisting with other malformations). We identified pathogenic aberrations and likely pathogenic genetic loci for CHD in 165 fetuses and 9 copy number variants (CNVs) of unknown clinical significance. Prenatal array-CGH is a useful method allowing the identification of all unbalanced aberrations (number and structure) with a much higher resolution than the currently applied traditional assessment techniques karyotype. Due to this ability, we identified the etiology of heart defects in 37% of cases.

scholarly journals Personalized Genetic Diagnosis of Congenital Heart Defects in Newborns

2021 ◽  
Vol 11 (6) ◽  
pp. 562
Author(s):  
Olga María Diz ◽  
Rocio Toro ◽  
Sergi Cesar ◽  
Olga Gomez ◽  
Georgia Sarquella-Brugada ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Heart Disease ◽  
Congenital Heart Defects ◽  
Congenital Malformations ◽  
Congenital Heart ◽  
Heart Diseases ◽  
Heart Defects ◽  
Genetic Diagnosis ◽  
Single Nucleotide Variants ◽  
Personalized Approach

Congenital heart disease is a group of pathologies characterized by structural malformations of the heart or great vessels. These alterations occur during the embryonic period and are the most frequently observed severe congenital malformations, the main cause of neonatal mortality due to malformation, and the second most frequent congenital malformations overall after malformations of the central nervous system. The severity of different types of congenital heart disease varies depending on the combination of associated anatomical defects. The causes of these malformations are usually considered multifactorial, but genetic variants play a key role. Currently, use of high-throughput genetic technologies allows identification of pathogenic aneuploidies, deletions/duplications of large segments, as well as rare single nucleotide variants. The high incidence of congenital heart disease as well as the associated complications makes it necessary to establish a diagnosis as early as possible to adopt the most appropriate measures in a personalized approach. In this review, we provide an exhaustive update of the genetic bases of the most frequent congenital heart diseases as well as other syndromes associated with congenital heart defects, and how genetic data can be translated to clinical practice in a personalized approach.

Immediate and long-term outcomes in children with prenatal diagnosis of selected isolated congenital heart defects

2007 ◽  
Vol 29 (1) ◽  
pp. 38-43 ◽  
Author(s):  
I. B. Fuchs ◽  
H. Müller ◽  
H. Abdul-Khaliq ◽  
T. Harder ◽  
J. W. Dudenhausen ◽  
...  
Keyword(s):  
Prenatal Diagnosis ◽  
Congenital Heart Defects ◽  
Congenital Heart ◽  
Heart Defects ◽  
Long Term Outcomes
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