Failed defibrillation with unexpected battery depletion by cable externalization of dual-coil defibrillator lead

In 2011, Riata and Riata ST (Abbott Inc., Sylmar, CA) implantable cardiac defibrillator (ICD) leads was placed under a class Ⅰ US Food and Drug Administration (FDA) recall due to lead conductor externalization with electrical dysfunction.1 Mechanism of ICD lead abrasions are varied and inside-out is one of the mechanisms, that is represented by ethylene tetrafluoroethylene (ETFE)-coated conductor cable abrading through the silicone insulation owing to inside-out erosion, as a result of internal motion in Riata lead.