Abstract

BackgroundDown syndrome is the most common chromosomal abnormality in humans. It is associated with several congenital anomalies, including a spectrum of congenital heart diseases. Understanding the true prevalence and distribution of congenital heart diseases is essential for health resource planning, outcomes, and family counseling.This study aimed to assess the prevalence and distribution of congenital heart disease in children with Down syndrome. It is a retrospective cohort review that included all patients treated at King Abdulaziz University Hospital. Frequencies were estimated using the SPSS software and comparisons were made using Student’s t test.ResultsThe ages of the 254 subjects ranged from less than 1 year to 53 years. Of these, 44.5% were female and 40.6% were Saudi nationals. Congenital heart disease was present in 66.5% with a significant difference between Saudi nationals 44.6%) and non-Saudi nationals 71.5% (P = 0.01). The atrioventricular septal defect was the most common pathology, representing 33.1% of all congenital heart diseases followed by perimembranous ventricular septal defect 18.9%, and right ventricular pathology 10.2%.ConclusionThe prevalence of congenital heart diseases in Saudi children with Down Syndrome is similar to that reported worldwide. Septal defects and right-sided pathologies are the dominant forms of congenital heart diseases, with atrioventricular septal defect and perimembranous ventricular septal defect representing the most common pathologies.

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