Congenital malformations of aortic and mitral valves (Q23)

Clinical Information for Congenital malformations of aortic and mitral valves (Q23)

Hypoplastic Left Heart Syndrome - A condition caused by underdevelopment of the whole left half of the heart. It is characterized by hypoplasia of the left cardiac chambers (HEART ATRIUM; HEART VENTRICLE), the AORTA, the AORTIC VALVE, and the MITRAL VALVE. Severe symptoms appear in early infancy when DUCTUS ARTERIOSUS closes.

Quadricuspid Aortic Valve - Congenital malformation where the AORTIC VALVE has four instead of three cusps. It is often associated with AORTIC REGURGITATION and AORTIC VALVE STENOSIS.