title: Left ventricular outflow tract obstruction in the presence of asymmetric septal hypertrophy and accessory mitral valve tissue treated with alcohol septal ablation.
abstract: 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.
authors.affiliation: Division of Cardiology, Health Sciences Center, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO 80045, USA.
authors.forename: Michael S
authors.initials: MS
authors.lastname: Kim
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Klein
authors.forename: Bertron M
authors.initials: BM
authors.lastname: Groves
authors.forename: Robert A
authors.initials: RA
authors.lastname: Quaife
authors.forename: Ernesto E
authors.initials: EE
authors.lastname: Salcedo
mesh_terms: D000368:Aged; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications* / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy; D000431:Ethanol / Q000627:therapeutic use*; D006346:Heart Septum / Q000187:drug effects / Q000473:pathology; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000473:pathology*; D012997:Solvents / Q000627:therapeutic use; D014694:Ventricular Outflow Obstruction / Q000150:complications* / Q000503:physiopathology / Q000628:therapy
chemical_list: D012997:Solvents; D000431:Ethanol