Related Experiment Video
Updated: Aug 11, 2026

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound (30/45MHZ) System
Published on: May 5, 2018
Congenital heart diseases and other major anomalies in patients with Down syndrome
1Department of Child Health, College of Medicine, King Khalid University, Abha, Kingdom of Saudi Arabia. fuadabbag@yahoo.com
Insights
Congenital heart diseases (CHDs) affect over 60% of Down syndrome (DS) patients, with ventricular septal defect being most common. Early screening and intervention are crucial for improving survival rates in DS patients with anomalies.
Area of Science:
- Cardiology
- Genetics
- Pediatrics
Background:
- Down syndrome (DS) is associated with a high incidence of congenital anomalies.
- Congenital heart diseases (CHDs) are particularly prevalent in DS patients.
- Understanding the spectrum of these anomalies is crucial for patient management.
Purpose of the Study:
- To determine the frequency and types of CHDs and other congenital anomalies in Down syndrome patients.
- To assess the short-term survival rate of DS patients with congenital anomalies.
- To identify key anomalies and guide early screening protocols.
Main Methods:
- Retrospective review of 98 Down syndrome patients.
- Analysis of clinical notes, echocardiography reports, and operative records.
- Follow-up period averaging 30 months.
Main Results:
- Congenital heart diseases (CHDs) were identified in 61.3% of patients.
- Ventricular septal defect (VSD) was the most frequent CHD (33.3%).
- Gastrointestinal anomalies were most common noncardiac anomalies (22.4%), including duodenal atresia and imperforate anus.
Conclusions:
- Ventricular septal defect (VSD) is the most common CHD in Down syndrome (DS) patients.
- Gastrointestinal anomalies are the most frequent noncardiac anomalies in DS.
- Early echocardiographic screening is recommended to prevent complications like inoperable pulmonary vascular disease (OPVD), and early intervention is vital for improving survival in DS patients with congenital anomalies.
Objective:
To determine the frequency and types of congenital heart diseases (CHDs) and other congenital anomalies among Down syndrome (DS) patients, and the short-term survival rate.
Methods:
This is a retrospective review of 98 DS patients seen in Aseer Central Hospital from July 1994 to June 2005. The clinicians notes, echocardiography reports and operative notes were examined.
Results:
The mean follow up period was 30 +/- 40.1 months. Ninety-three patients had echocardiography; CHDs were found in 57 patients (61.3%). Ventricular septal defect (VSD) was the most common (33.3%) followed by atrioventricular septal defect (22.8%), atrial septal defect (21.1%), patent ductus arteriosus (14%) and tetralogy of Fallot (5.3%). Three patients (5.3%) developed inoperable obstructive pulmonary vascular disease (OPVD) and 3 were deemed inoperable for other reasons. The CHD was clinically suspected in 96%. The most common noncardiac anomalies were gastrointestinal, affecting 22 patients (22.4%): duodenal atresia 8 patients, imperforate anus 7 patients and Hirschsprung disease 4 patients. Sixteen patients (16.3%) died at a mean age of 19 months, 15 of them (93.8%) had anomalies.
Conclusion:
The most common CHD in DS is VSD and the most common noncardiac anomaly is gastrointestinal. Down syndrome patients should be screened by echocardiography early in life to avoid OPVD. The mortality in DS is highest among those with congenital anomalies, and therefore, early intervention is crucial.
Related Concept Videos
Meiosis I
Nondisjunction
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Teratogenicity
Mitral Stenosis I: Introduction
Rheumatic Heart Disease I: Introduction

