Key result
Alcohol septal ablation effectively treats medically refractory HOCM complicated by accessory mitral valve tissue.
Why the study?
Redundant or accessory mitral valve tissue is a rare cause of left ventricular outflow tract obstruction in hypertrophic obstructive cardiomyopathy, requiring diagnostic and therapeutic evaluation.
Case Report (n=1)
Alerts clinicians to AMVT in refractory HOCM; hypothesis-generating for 3D TEE-guided alcohol septal ablation.
Redundant or accessory mitral valve tissue (AMVT) is a rare clinical condition. It is an even rarer cause of left ventricular outflow tract obstruction. We report a case of an adult male with medically unresponsive hypertrophic obstructive cardiomyopathy in whom real-time three-dimensional transesophageal echocardiography was used to both diagnose the presence of coexistent asymmetric septal hypertrophy and AMVT as well as confirm the safety and efficacy of treatment with alcohol septal ablation.
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Kim et al. (2008) conducted a case report in Hypertrophic obstructive cardiomyopathy with asymmetric septal hypertrophy and accessory mitral valve tissue (n=1). Alcohol septal ablation was evaluated on Safety and efficacy of treatment. Alcohol septal ablation was safely and effectively used to treat an adult male with medically unresponsive hypertrophic obstructive cardiomyopathy and accessory mitral valve tissue.
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