Please assess the completion status of the following clinical trial:

Trial Title: Nitroglycerin Infusion During Cardiac Surgery

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* elective cardiac surgery~Exclusion Criteria:~* heart failure, respiratory failure, asthma attack, uremia, normothermic bypass.

- Gender: ALL
- Minimum Age: 20 Years
- Maximum Age: 85 Years
- Healthy Volunteers: f

Study Arms:
- High-dose NTG (Type: EXPERIMENTAL): Nitroglycerin infusion 1-5 mcg/kg/min
- Low-dose NTG (Type: ACTIVE_COMPARATOR): Nitroglycerin infusion 0-0.1 mcg/kg/min

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