Please assess the completion status of the following clinical trial:

Trial Title: Predicting Arrhythmogenic Risk in Congenital Heart Patients: the PRECISION Study

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

Eligibility Criteria:
Inclusion Criteria:~* Patients aged \< 18 years of age on admission to the cardiac intensive care unit following cardiac surgery with a predicted probability of supraventricular tachycardia \>10%~Exclusion Criteria:~* Patients following orthotopic heart transplant, ventricular assist device implantation, primary extracorporeal membrane oxygenation cannulation, pacemaker or implantable cardioverter-defibrillator implantation or sympathectomy~* Patients on antiarrhythmic medication at the time of surgery~* Patients with atrioventricular conduction disease (1st degree atrioventricular block with PR interval greater than 200 ms, 2nd degree atrioventricular block or complete heart block)~* Patients with severe ventricular dysfunction in whom therapy with beta-blocker or sotalol is deemed contra-indicated by the primary team~* Patients with absent or non-functioning atrial pacing wires

- Gender: ALL
- Minimum Age: 0 Years
- Maximum Age: 18 Years
- Healthy Volunteers: f

Study Arms:
- Observation (Type: NO_INTERVENTION): Patients will be observed for arrhythmias and treated if they occur.
- Testing (Type: EXPERIMENTAL): Patients will undergo provocative electrophysiology testing, and antiarrhythmic medication considered if arrhythmias can be induced.

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