Please assess the completion status of the following clinical trial:

Trial Title: Combined Amiodarone and Electrical Cardioversion for Postoperative Atrial Fibrillation After Cardiac Surgery

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Subjects who underwent CABG and/or cardiac valve surgery involving cardiopulmonary bypass and develop postoperative atrial fibrillation within 7 days after surgery~Exclusion Criteria:~* Subjects who had any form of atrial fibrillation prior to surgery~* Subjects who were on antiarrhythmic medications preoperatively, including but not limited to procainamide and amiodarone

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 100 Years
- Healthy Volunteers: f

Study Arms:
- Amiodarone with cardioversion (Type: OTHER): If subject converts to normal sinus rhythm following amiodarone no further intervention is taken, if subject remains in atrial fibrillation following amiodarone they are cardioverted.

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