A 52 year old male patient presented with an acute inferior myocardial infarction. His past medical history was unremarkable, and he was well up to 12 hours before presentation. He initially made an uneventful recovery during the first day, but on the second day postinfarction he developed symptomatic bradycardia necessitating temporary cardiac pacing, which was inserted via the right femoral vein under fluoroscopy. The pacing electrode catheter …