Journal of Diagnostic Medical Sonography

 

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Journal of Diagnostic Medical Sonography, Vol. 21, No. 1, 56-61 (2005)
DOI: 10.1177/8756479304271274

Accessory Mitral Valve Tissue Causing Mitral Valve Obstruction and Left Ventricular Outflow Tract Obstruction in a Young Adult

Helen Polito, BA, RDCS

Pediatric Cardiology, P.C., 330 Laurel Street, Suite 2200, Des Moines, IA 50314 helenp{at}pedscard.com

Accessory mitral valve (AMV) is a rare cause of left ventricular outflow tract (LVOT) obstruction. This case report demonstrates the progression from a hypertrophic cardiomyopathy to a mid-cavity obstruction; abnormal mitral valve architecture, including AMV with increasing obstruction; progressive symptoms; and full documentation of details by transesophageal echocardiogram. The patient underwent a successful operation for removal of the AMV at age 21 years.

Key Words: accessory mitral valve • left ventricular outflow tract • hypertrophic cardiomyopathy • transesophageal echocardiogram


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