Postoperative Atrial Fibrillation After Cardiac Surgery: Prevention and Management
Postoperative Atrial Fibrillation After Cardiac Surgery: Prevention and Management
(Society of Thoracic Surgeons -STS 2026)
Key Points:
• Postoperative atrial fibrillation (POAF) is the most common complication after cardiac surgery
• Typically occurs within the first 3–4 days postoperatively
• Incidence:
– Up to 50% in combined CABG + valve surgery
– 20–30% after isolated CABG
– 30–40% after isolated valve procedures
• Key Prevention Strategies:
– Beta-blockers = standard of care
– Amiodarone for high-risk patients
– Consider magnesium, corticosteroids, or colchicine in selected cases
• Practical Amiodarone Prophylaxis:
– 200 mg twice daily perioperatively
– Then 200 mg once daily
• Management:
– Unstable patients → electrical cardioversion
– Stable patients → rate or rhythm control
– Anticoagulation based on individual stroke and bleeding risk
• Anticoagulation:
– Usually short-term (4–6 weeks), as POAF is often transient
– Long-term only if AF persists or stroke risk is high
• Bottom Line:
– POAF is common but preventable
– Early prophylaxis improves outcomes
Published in: The Annals of Thoracic Surgery
Date: April 18, 2026
https://www.annalsthoracicsurgery.org/article/S0003-4975(26)00344-9/fulltext