Down syndrome: a risk factor for mycotic aneurysm?

Area of Science:

• Cardiology
• Vascular Surgery
• Genetics

Background:

• Down syndrome (trisomy 21) is associated with a higher incidence of congenital heart defects.
• Infective endocarditis can lead to serious vascular complications, including pseudoaneurysms.
• Mycotic pseudoaneurysms are rare but life-threatening infections of blood vessels.

Observation:

• An adult male with Down syndrome presented with lower limb pain and swelling, initially diagnosed as cellulitis.
• Clinical and angiographic evaluation revealed a below-knee mycotic pseudoaneurysm.
• The pseudoaneurysm was identified as a complication of infective endocarditis.

Findings:

• The patient underwent successful surgical repair of the pseudoaneurysm.
• Revascularization procedures were performed to restore blood flow to the limb.
• This case highlights a rare vascular complication in an adult with Down syndrome.

Implications:

• Early recognition and management of infective endocarditis are critical in patients with Down syndrome.
• Multidisciplinary management involving cardiology, vascular surgery, and infectious disease specialists is essential.
• This case underscores the importance of considering rare vascular complications in the Down syndrome population.