Author: Mark D. Neuman, MD, M.Sc, Editor
Anesthesiology, April 2026
Summary:
This prospective cohort study evaluated continuous rhythm monitoring after CABG and found that postoperative atrial fibrillation (AF) is far more common than previously recognized. Continuous monitoring detected AF in a significant number of patients who would have been missed by standard intermittent monitoring. Many episodes were asymptomatic and occurred after hospital discharge. Importantly, these findings challenge current assumptions about AF incidence and raise concerns about underdiagnosis and undertreatment, particularly regarding anticoagulation decisions.
Key Points:
- Continuous monitoring detects substantially more AF after CABG than standard methods
- Many AF episodes are asymptomatic and occur after discharge
- Current postoperative AF management guidelines may underestimate true risk
What You Should Know:
This has real implications for perioperative care—especially stroke prevention. There may be a shift toward longer or continuous monitoring strategies and more aggressive anticoagulation consideration after cardiac surgery.