Accessory mitral valve tissue

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A rare congenital non-syndromic heart malformation characterized by an accessory mitral valve leaflet or various accessory mitral valve structures. It may be asymptomatic or present at various ages with symptoms of left ventricular outflow tract obstruction low cardiac output due to subaortic obstruction or congestive heart failure. In some cases it may be a source of cardioembolism. The malformation may be isolated or associated with other congenital heart malformations.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on Data version May 2024

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Accessory mitral valve tissue?

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