[A quadricuspid aortic valve passed unnoticed].

Area of Science:

• Cardiology
• Congenital Heart Disease
• Cardiac Surgery

Background:

• Quadricuspid aortic valve is a rare congenital anomaly.
• It is often asymptomatic and can be associated with other cardiac malformations, particularly coronary artery anomalies.

Observation:

• A 67-year-old female patient with a history of childhood atrial septal defect repair presented with newly diagnosed moderate aortic regurgitation.
• She had no prior diagnosis of a quadricuspid aortic valve.

Findings:

• The case highlights a potentially undiagnosed quadricuspid aortic valve presenting later in life.
• Aortic regurgitation was the primary clinical manifestation in this patient.

Implications:

• This case underscores the importance of considering quadricuspid aortic valve in adults with unexplained aortic regurgitation.
• Timely diagnosis and management are essential to prevent left ventricular dysfunction and improve patient outcomes.