Please assess the completion status of the following clinical trial:

Trial Title: Pharmacokinetics and Pharmacodynamics of Pentobarbital in Neonates, Infants, and Children Following Open Heart Surgery

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

Eligibility Criteria:
Inclusion Criteria:~* Will receive intravenous pentobarbital for procedural/imaging sedation as standard of care~* Age(Neonates, Young Infants, Older Infants, and Children Up to 6 years old)~* Diagnosis either postop from cardiac surgery or requrie sedation with IV pentobarbital as standard of care~* Adequate liver function tests~* Informed consent~Exclusion Criteria:~* Pregnant or lactating females~* Parents/guardians or subjects who, in the opinion of the Investigator, may be non-compliant with study schedules or procedures.

- Gender: ALL
- Minimum Age: None
- Maximum Age: 6 Years
- Healthy Volunteers: f

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