Medtronic plc announced results from a research study demonstrating the feasibility of a novel approach to delivering pacing and defibrillation therapy in which a lead is placed under the sternum (breastbone), outside of the heart and veins. Data from the Acute Extravascular Defibrillation, Pacing and Electrogram (ASD2) study were presented during a late-breaking session at Heart Rhythm 2018, the Heart Rhythm Society's 39th Annual Scientific Sessions, May 9-12 in Boston.