Five years prior to presentation, a 29-year-old woman received a transvenous pacemaker (DDD) for sick sinus syndrome and nodo-hisian pathology. After pacemaker insertion, she complained of recurrent febrile episodes. Her pacemaker related endocarditis was quite unusual for the infecting organism (a micrococcus) and for an acquired tricuspid valve stenosis. The suspected cause was confirmed at surgery.