Supravalvular aortic stenosis with sudden cardiac death

Area of Science:

• Cardiology
• Congenital Heart Disease
• Sudden Cardiac Death

Background:

• Sudden cardiac death (SCD) is often linked to undiagnosed cardiac conditions.
• Congenital heart defects causing left ventricular outflow tract obstruction are significant preventable causes of SCD.
• Supravalvular aortic stenosis (SVAS) is a critical congenital condition affecting aortic outflow.

Observation:

• This report details a young male experiencing sudden death, presumed due to acute myocardial ischemia.
• The individual had an undiagnosed case of supravalvular aortic stenosis (SVAS).
• The SVAS was associated with a rare condition: isolation of the coronary sinuses of Valsalva.

Findings:

• The primary finding is the fatal outcome of acute myocardial ischemia in a young male with undiagnosed SVAS.
• A rare anatomical variation, isolation of the coronary sinuses of Valsalva, was identified as a contributing factor to the SVAS.
• Additional congenital anomalies included supravalvular pulmonary stenosis and mitral valvular dysplasia.

Implications:

• This case underscores the importance of recognizing and diagnosing congenital aortic abnormalities, even in the absence of typical symptoms.
• Early detection and management of SVAS and associated anomalies can potentially prevent sudden cardiac death in young individuals.
• The rare association of isolated coronary sinuses of Valsalva with SVAS broadens the understanding of complex congenital heart disease presentations.