Driveline Silicone Skin Interface Registry

Inclusion Criteria: * Subject has signed the INTERMACS informed consent form * Subject has signed the SSI registry informed consent form * Subject age ≥ 18 years * Subject implanted with a HeartMate II LVAD * Subject in whom the full length of the velour portion of the percutaneous lead is fully kept under the skin resulting in a silicone skin interface at the skin exit site * In the prospective study cohort, Subject is planned to be supported with the HeartMate II LVAD for at least 12 months * In the retrospective study cohort, at the time of enrollment, Subject has been supported with a HeartMate II for at least 10 months Exclusion Criteria: * In the retrospective study cohort, Subject is ongoing with long-term right heart mechanical circulatory support (RVAD) * In the retrospective study cohort, Subject had a post-implant sternal re-entry (for bleeding, etc.) or delayed sternal closure * In the retrospective study cohort, Subject is participating in any other clinical investigation related to driveline (DL) exit site that could confound the study results * In the prospective study cohort, Subject is participating in any other clinical investigation related to driveline (DL) exit site that could confound the study results