Rare genetic variants predispose to sudden cardiac death
(PHYSorg.com Medicine & Health)

Sudden cardiac death affects 220,000 U.S. adults annually, most of whom have no prior symptoms of a heart issue. By identifying rare DNA variants that substantially increase risk of sudden cardiac death, researchers led by investigators at Massachusetts General Hospital (MGH) and the Broad Institute of MIT and Harvard have laid the foundation for efforts to identify individuals who could benefit from prevention strategies prior to experiencing symptoms.