Heart failure is a leading cause of disability and death in the U.S., but many cases are diagnosed late due to limited access to echocardiography, the primary method of detecting the condition. To address that need, the U.S. FDA has granted breakthrough device designation to Eko Devices Inc., of Berkeley, Calif., for an electrocardiogram (ECG)-based algorithm that could serve as an easily accessible screening tool for heart failure during routine physical exams.