Accessory mitral valve without left ventricular outflow tract obstruction in an adult.
Texas Heart Institute Journal(2008)
摘要
Accessory mitral valve is a rare congenital abnormality and an unusual cause of subvalvular obstruction of the left ventricular outflow tract. Accessory mitral valves are usually detected in children due to symptomatic obstruction; isolated nonobstructive accessory mitral valve is rarely seen in adults. We describe the echocardiographic diagnosis of accessory mitral valve as an isolated congenital anomaly not associated with a substantial degree of obstruction of the left ventricular outflow tract in an asymptomatic adult patient. This case highlights the importance of transthoracic and transesophageal echocardiography in the diagnosis and follow-up of this uncommon congenital anomaly.
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关键词
accessory mitral valve,ventricular outflow tract obstruction
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