Please assess the completion status of the following clinical trial:

Trial Title: Randomized Isoflurane and Sevoflurane Comparison in Cardiac Surgery

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Patients must be 18 years or over (There is no upper age limit to enrollment)~* Eligible procedures are: CABG on-pump or off-pump, single valve repair/replacement, or CABG/single valve combined procedures~Exclusion Criteria:~* Cardiac surgeries that are not one of the included cases~* Planned extubation in the operating room~* Patients refusing blood products (vis à vis blood sampling)~* Pregnant patients~* Malignant hyperthermia or documented/stated allergy to potent volatile anesthetic agents

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

Study Arms:
- sevoflurane (Type: ACTIVE_COMPARATOR): These patients will receive sevoflurane as the volatile anesthetic pre-, during-, and post-cardiopulmonary bypass at a targeted dose of 0.5-2.0 MAC.
- isoflurane (Type: EXPERIMENTAL): These patients will receive isoflurane as the volatile anesthetic pre-, during-, and post-cardiopulmonary bypass at a targeted dose of 0.5-2.0 MAC.

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