Abstract:
:Tetralogy of Fallot associated with the atrioventricular canal defect has been usually reported in association with Down syndrome. The aim of the present study was to describe the cardiac aspects and the genetic anomalies in children with this association of heart defects. We identified 64 patients with atrioventricular canal defect tetralogy of Fallot. All children underwent complete cardiovascular, clinical phenotypic and genetic evaluation. A genetic syndrome or extracardiac anomalies were found in 56 patients (87.5%). Down syndrome (43 patients, 67.2%) was the most frequent genetic diagnosis. Other syndromes were 8p deletion, trisomy 13, duplication 5p, cranio-cerebello-cardiac syndrome, Cantrell syndrome, CHARGE association, VACTERL association, and DiGeorge syndrome related to maternal diabetes. No patients in our series had 22q11 deletion. Tetralogy of Fallot with extreme dextroposition of the aorta was found in seven patients (only one with Down syndrome). Additional cardiac malformations were present in 23 patients (only 11 with Down syndrome). The association between atrioventricular canal defect and tetralogy of Fallot represents a cardiac phenotype with strong genetic characteristics. For this reason, a careful genetic examination is required. Our study confirms the high prevalence of Down syndrome, but also reveals a significant genetic heterogeneity. Additional cardiac defects are prevalent in patients without Down syndrome.
journal_name
Clin Dysmorpholjournal_title
Clinical dysmorphologyauthors
Vergara P,Digilio MC,De Zorzi A,Di Carlo D,Capolino R,Rimini A,Pelegrini M,Calabro R,Marino Bdoi
10.1097/01.mcd.0000198925.94082.easubject
Has Abstractpub_date
2006-04-01 00:00:00pages
65-70issue
2eissn
0962-8827issn
1473-5717pii
00019605-200604000-00003journal_volume
15pub_type
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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doi:10.1097/00019605-200510000-00004
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journal_title:Clinical dysmorphology
pub_type: 杂志文章
doi:10.1097/00019605-199707000-00003
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journal_title:Clinical dysmorphology
pub_type: 信件
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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journal_title:Clinical dysmorphology
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