Electrical Shock

All patients having an implantable cardiac defibrillator (ICD) implanted and having follow-up at the Cantonal Hospital Lucerne (LUKS), the investigator center, are included in this retrospective ICD lead registry from 2006 onwards. Data is collected prospectively from december 2016 onwards. After certain ICD-leads tended to fail early the investigators aimed for a registry monitoring our patient population with defibrillator leads and evaluating their long-term performance.