Introduction:
Recently, leadless pacemaker emerged as a new pacing strategy to avoid
pocket and lead-related complications as compared with conventional
pacemaker1. However, though the incidence of major
complications was demonstrated to be low to 1.51% in Micra
transcatheter pacing system (TPS) (Medtronic, Minneapolis, MN,
USA)2, cardiac perforation remains a major safety
concern with the incidence of about 0.13%~1.3% in
studies2,3. Herein, we presented a case of cardiac
perforation with pericardial tamponade caused by accidently placing the
delivery catheter into the coronary sinus.