Please assess the completion status of the following clinical trial:

Trial Title: Optisure Lead Post Approval Study

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: CASE_ONLY
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~Eligible patients will meet all of the following:~1. Have an approved indication, as per ACC/AHA/HRS/ESC guidelines, for implantation of an ICD or CRT-D system for treatment of heart failure or life-threatening ventricular tachyarrhythmia(s).~2. Have been implanted with a St. Jude Medical Optisure lead in the last 30 days or are scheduled for an Optisure lead implant.~3. Have the ability to provide informed consent for study participation and be willing and able to comply with the prescribed follow-up tests and schedule of evaluations.~4. Are 18 years or above, or of legal age to give informed consent specific to state and national law.~Exclusion Criteria:~Patients will be excluded if they meet any of the following:~1. Enrolled or intend to participate in a clinical drug and/or device study, which could confound the results of this trial as determined by SJM, during the course of this clinical study.~2. Have a life expectancy of less than 5 years due to any condition.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- St. Jude Medical Optisure Lead (Type: None): Patients implanted with St. Jude Medical Optisure Lead

Based on this trial design, predict the completion outcome and termination type (if applicable).