Abstract
TRANSCORONARY ABLATION of septal hypertrophy (TASH), first introduced in 1994, has become an important option for treating symptomatic hypertrophic obstructive cardiomyopathy (HOCM), a rare disorder. The first septal branch of the left anterior descending artery (LAD) is located and 96% alcohol is instilled to induce an artificial myocardial infarction and necrosis at the base of the hypertrophied septum. This resolves the left ventricular outflow tract (LVOT) gradient due to its widening, restricted septal excursion, decreased mitral regurgitation, and subsequent global negative ventricular remodeling. Despite its growing acceptance, some risks are inherent to the procedure. Here, the authors describe the management of a case of TASH complicated by complete atrioventricular (AV) block.
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