Down syndrome with congenital heart malformation

Area of Science:

• Cardiology
• Genetics
• Pediatrics

Background:

• Congenital heart disease (CHD) is a significant comorbidity in individuals with Down syndrome.
• Understanding the spectrum of cardiac anomalies and their management is crucial for improving patient outcomes.

Purpose of the Study:

• To characterize the types and prevalence of congenital heart defects in patients with Down syndrome.
• To evaluate the outcomes of medical and surgical management of these cardiac conditions.

Main Methods:

• Retrospective analysis of 251 patients with Down syndrome and CHD.
• Data sources included clinical evaluations, cardiac catheterization, surgical records, and autopsy reports.
• Prevalence of specific cardiac lesions and associated conditions were documented.

Main Results:

• Endocardial cushion defect (43%) and ventricular septal defect (32%) were the most common lesions.
• Thirty percent of patients had multiple cardiac defects, with patent ductus arteriosus and pulmonic stenosis being frequent associated lesions.
• Surgical intervention was performed in 25% of patients, with mortality rates of 26% for open-heart and 11% for closed-heart procedures.

Conclusions:

• Congenital heart disease, particularly endocardial cushion defects, is highly prevalent in Down syndrome.
• While surgical interventions carry risks, they are vital for managing complex CHD. Irreversible pulmonary vascular disease is a risk in nonsurgically treated patients.
• Advances in medical and surgical care have led to recent improvements in morbidity and mortality for these patients.