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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Cytogenomics Investigation of Infants with Congenital Heart Disease: Experience of a Brazilian Center

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Author(s):
Marcília Sierro Grassi [1] ; Marília Montenegro [2] ; Evelin Aline Zanardo [3] ; Antonio Carlos Pastorino [4] ; Mayra Barros Dorna [5] ; Chong Kim [6] ; Marcelo Jatene [7] ; Nana Miura [8] ; Leslie Kulikowski [9] ; Magda Carneiro-Sampaio [10]
Total Authors: 10
Affiliation:
[1] Universidade de São Paulo. Hospital das Clínicas - Brasil
[2] Universidade de São Paulo - Brasil
[3] Universidade de São Paulo - Brasil
[4] Universidade de São Paulo. Hospital das Clínicas - Brasil
[5] Universidade de São Paulo. Hospital das Clínicas - Brasil
[6] Universidade de São Paulo - Brasil
[7] Universidade de São Paulo. Hospital das Clínicas - Brasil
[8] Universidade de São Paulo. Hospital das Clínicas - Brasil
[9] Universidade de São Paulo - Brasil
[10] Universidade de São Paulo. Hospital das Clínicas - Brasil
Total Affiliations: 10
Document type: Journal article
Source: Arquivos Brasileiros de Cardiologia; v. 118, n. 1, p. 61-67, 2022-02-21.
Abstract

Abstract Background Some syndromes have specific and easily recognizable features, while others may be more complex to identify and may present different phenotypic manifestations, for example. An etiological diagnosis is important to understand the nature of the disease, to establish the prognosis and to start the treatment, allowing the inclusion of patients in society and reducing the financial cost of such diseases. Objective The initial proposal of this study was cytogenetic screening for the detection of the 22q11.2 deletion syndrome in consecutive newborns and infants with congenital heart disease using the multiplex ligation-dependent probe amplification (MLPA) technique. Therefore, throughout our research, other genomic alterations were identified in these cardiac patients. Thus, our objective was extended to investigate these other cytogenetic alterations. Methods We investigated 118 neonates with congenital heart diseases born consecutively during one year using the MLPA technique. Results The MLPA technique allowed the detection of 22q11.2DS in 10/118 patients (8.5%). Other genomic alterations were also identified in 6/118 patients (5%): 1p36 del, 8p23 del (2 cases), 7q dup, 12 dup and 8q24 dup. Conclusion This study highlights the relevance of detecting genomic alterations that are present in newborns and infants with congenital cardiac diseases using cytogenomic tools. (AU)

FAPESP's process: 14/50489-9 - Human thymus: development and diseases
Grantee:Magda Maria Sales Carneiro-Sampaio
Support Opportunities: Research Projects - Thematic Grants