Thrombus formation on a defibrillator lead with conductor externalization

A 51 year old man with arrhythmogenic right ventricular cardiomyopathy reported non-specific symptoms of muscle aches and shivering at outpatient review. A dual chamber implantable cardioverter defibrillator (ICD) had been inserted seven years previously. Fluoroscopic lead screening had previously demonstrated conductor externalisation (Figure and Video) of a single coil Riata ICD lead (model number 1582-65, St. Jude Medical, Sylmar, CA, USA). All electrical parameters were normal. Supplementary data related to this article can be found online at http://dx.doi.org/10.1016/j.ipej.2015.07.014.