A key issue for cardiovascular genetic medicine is ascertaining if a putative mutation indeed causes dilated cardiomyopathy (DCM). This is critically important as genetic DCM, usually presenting with advanced, life-threatening disease, may be preventable with early intervention in relatives known to carry the mutation.
Division of Cardiovascular Medicine, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA. rhershberger@med.miami.edu