Commentary: Now you see me, now you don't—the peek-and-boo left ventricular outflow obstruction gradient

Central MessageSymptomatic hypertrophic cardiomyopathy patients without baseline obstruction but with a provokable left ventricular outflow tract gradient benefit from septal myectomy.See Article page 1863. Symptomatic hypertrophic cardiomyopathy patients without baseline obstruction but with a provokable left ventricular outflow tract gradient benefit from septal myectomy. See Article page 1863. Septal myectomy provides proven surgical therapy...