Post Market Clinical Follow-up Study for the Pamira ICD Lead Family

Inclusion Criteria: * Standard indication for ICD or CRT-D therapy according to clinical guidelines * Planned for de novo implantation of a BIOTRONIK ICD or CRT-D in combination with Pamira * Ability to understand the nature of the study and willingness to provide written informed consent * Ability and willingness to perform all follow-up visits at the study site * Ability and willingness to use the CardioMessenger and acceptance the BIOTRONIK Home Monitoring® concept Exclusion Criteria: * Mechanical tricuspid valve prosthesis or a severe tricuspid valve disease * Known Dexamethasone acetate intolerance * Cardiac surgical post-implantation procedure planned within 12 months (including interventional procedures like ablation, valve replacement, heart transplant etc.) * Less than 18 years old * Pregnant or breast feeding * Participating in another interventional clinical investigation * Life-expectancy less than 12 months