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Propionibacterium acnes Pacemaker Endocarditis in a Patient With a Redundant Loop of the Ventricular Lead: PET/CT
Luis Gorospe1, Javier Miguelena-Hycka2, Miren Martín-García2
1From the Departments of Radiology.
Abstract:
A 59-year-old man with a pacemaker who was admitted for evaluation of fever was found to have a redundant loop of the ventricular lead and a vegetation attached to it. An FDG PET/CT revealed a focus of FDG uptake at the ventricular lead loop. Surgical extraction of the pacemaker device confirmed a Propionibacterium acnes pacemaker endocarditis. We hypothesize that the redundant loop of the ventricular lead induced a chronic mechanical stress both to the tricuspid valve and to the lead itself, facilitating the bacterial colonization of the lead.
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