Leadless Medtronic Micra pacemaker almost completely endothelialized already after 4 months: first clinical experience from an explanted heart.

A 43-year-old man with congenital heart disease (patent ductus arteriosus and congenital aortic stenosis) underwent leadless pacemaker (Medtronic Micra) implantation in September 2016. In 2007, aortic valve replacement was complicated by complete A–V block requiring implantation of a DDD-pacemaker. Over the subsequent 3 years, he developed progressive heart failure and his course was complicated by recurrent device-related infections. In …