Ranasinghe, Isuru Negative ionotropic agents for the treatment of left ventricular outflow tract obstruction due to sigmoid septum and concentric left ventricular hypertrophy. [electronic resource] - Heart, lung & circulation Sep 2011 - 579-86 p. digital Publication Type: Journal Article ISSN: 1444-2892 Standard No.: 10.1016/j.hlc.2011.05.002 doi Subjects--Topical Terms: Adrenergic beta-Antagonists--administration & dosageAdultAgedAged, 80 and overAnti-Arrhythmia Agents--administration & dosageCardiomyopathy, Hypertrophic, Familial--diagnostic imagingDisopyramide--administration & dosageFemaleHumansMaleMiddle AgedRetrospective StudiesUltrasonographyVentricular Outflow Obstruction--diagnostic imaging