cie4dCardiovascular implantable electronic device (CIED) is a term that encompasses pacemakers for bradyarrhythmia treatment, implantable cardioverter defibrillators (ICDs) for tachyarrhythmiaCardiovascular implantable electronic device (CIED) is a term that encompasses pacemakers for bradyarrhythmia treatment, implantable cardioverter defibrillators (ICDs) for tachyarrhythmia