Screening Echocardiography in Adults with Down Syndrome

Area of Science:

• Genetics and Human Diseases
• Cardiology
• Pediatrics and Adult Medicine

Background:

• Down syndrome (DS), the most common chromosomal disorder, affects approximately 14.14/10,000 births in the US.
• Individuals with DS experience numerous medical anomalies, notably cardiac, gastrointestinal, musculoskeletal, and genitourinary issues, increasing morbidity.
• Congenital heart disease (CHD) is prevalent in over 40% of children with trisomy 21.

Purpose of the Study:

• To challenge the current consensus on cardiac screening for adults with Down syndrome.
• To advocate for routine echocardiography screening across all ages in the Down syndrome population.
• To highlight the increased risk of residual and newly developed cardiac conditions in adolescents and adults with DS.

Main Methods:

• Review of existing literature on cardiac anomalies in Down syndrome.
• Analysis of the prevalence of congenital and acquired heart disease in the DS population.
• Evaluation of current screening guidelines versus proposed screening protocols.

Main Results:

• While neonatal screening echocardiography is standard, adult screening is typically limited to symptomatic individuals.
• A significant percentage of individuals with Down syndrome have residual cardiac defects or develop new valvular and structural heart disease later in life.
• Late adolescence and early adulthood represent critical periods for cardiac surveillance in this population.

Conclusions:

• Routine echocardiography screening should be implemented for all individuals with Down syndrome throughout their lifespan.
• This approach is crucial for early detection and management of cardiac conditions, particularly in late adolescence and adulthood.
• Proactive cardiac surveillance can mitigate the burden of cardiac morbidity in the Down syndrome population.