Biotronik announced U.S. Food and Drug Administration (FDA) approval and availability of the Intica DX and Intica cardiac resynchronization therapy (CRT)-DX implantable cardioverter defibrillator (ICD) systems. The launch of Intica CRT-DX extends the benefits of Biotronik's DX technology to heart failure patients. DX eliminates the need for an atrial lead while still providing physicians with critical diagnostic information based on a true atrial signal.