"Permanent Leadless Cardiac Pacing
Results of the LEADLESS Trial'
http://circ.ahajournals.org/content/129/14/1466.abstract
"Conclusions—In a prospective nonrandomized study, a completely self-contained, single-chamber leadless cardiac pacemaker has shown to be safe and feasible. The absence of a transvenous lead and subcutaneous pulse generator could represent a paradigm shift in cardiac pacing."