摘要

Background: The aim of this study was to investigate the prevalence of congenital heart defects in children with Downs syndrome in Imam Khomeini Hospital in a period of 2 years (2001-2002). Methods: Based on their medical files and echocardiographies, 32 patients with Down*s syndrome were evaluated during study. Findings: The cytogenetic analysis in these patients (19 males and 13 females) revealed that 29 cases (90.7%) had trisomy 21, 2 cases (6.2%) had translocation and only one case (3.1%) was mosaic. Family history for heart diseases was positive in 2 patients (6.2%). The findings of echocardiography were as follow: endocardial cushion defect (ECD) in 16 cases (50%), ventricular septal defect (VSD) in 7 cases (21.8%), atrial septal defect (ASD) in 6 cases (18.7%), tetralogy of Fallot (TOF) in 2 cases (6.2%), patent ductus arteriousus (PDA) in one case (3.1%). Conclusions: The diagnosis of congenital heart defects in children with Down*s syndrome is crucial because treating them in due course results in dramatical decrease in the mortality and morbidity rates of these patients.

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