Preventing Atrial Fibrillation After Heart Surgery

This study is looking for people having their first open-heart surgery for conditions like coronary artery bypass graft (CABG) or valve repair/replacement. You must have a normal heart rhythm and no past history of atrial fibrillation (a type of irregular heartbeat). The study aims to see if a test during surgery, called Intraoperative Rapid Atrial Pacing, can predict who might get postoperative atrial fibrillation (POAF). If this test shows you are likely to get POAF, you might then receive Amiodarone, a medication given by injection, to help prevent it. The main goal is to see if this approach can lower the number of patients who develop POAF within 30 days after surgery. The study plans to enroll 600 participants, but its current status is unclear.

Study design
This interventional study plans to enroll 600 participants. During surgery, a test will determine if you are likely to develop atrial fibrillation, and if so, you will be randomly assigned to receive Amiodarone or no treatment.
What's involved
During your open-heart surgery, a short test will be performed on your heart. If the test shows you are likely to develop atrial fibrillation, you may receive Amiodarone until you are discharged from the hospital.
Compensation
Not stated in the trial record.
Follow-up
Your heart rhythm will be monitored for 30 days after surgery to see if you develop postoperative atrial fibrillation.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT03868150

Prevention of Postop Atrial Fibrillation Through Intraoperative Inducibility of Atrial Fibrillation and Amiodarone Treatment

Recruiting
PHASE4Ages 18+InterventionalPrevention
Stanford University
~600 participants
Updated 2026-02-17 on ClinicalTrials.gov
What's tested:Amiodarone InjectionIntraoperative Rapid Atrial Pacing

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Decreasing the incidence of Post-Operative Atrial Fibrillation for Cardiac Surgery Patients
Measured over 30 days
Postoperative Atrial Fibrillation

NCT03868150

Where you'd take part

This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Stanford University

    Stanford, Californiastudy coordinator listed

    Recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Anson Lee, MD · PRINCIPAL_INVESTIGATOR · Stanford University

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Eligibility criteria

Inclusion

Patients scheduled for first-time non-emergent open-heart surgery for coronary artery bypass graft (CABG) revascularization, valvular repair or replacement, combined CABG with valve repair or replacement, or valve sparing aortic root repair
Normal sinus rhythm
No documented history of atrial fibrillation

Exclusion

Prior surgical procedures involving heart surgery and cardiopulmonary bypass
Any prior documented history of atrial fibrillation, atrial flutter or atrial tachycardia lasting longer than 30 seconds
Prior history of Amiodarone treatment for the management of supraventricular tachy-arrhythmias
Patients requiring surgical treatment of atrial arrhythmias such as pulmonary vein isolation or Maze procedure.
  • Decreasing the incidence of Post-Operative Atrial Fibrillation for Cardiac Surgery Patients30 days

    Identify predictors of developing atrial fibrillation in the hope of decreasing post-operative length of stay, the need for anticoagulation, decrease risk of stroke, DVT, and bleeding