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Published on: February 26, 2013
Atrial Fibrillation After Coronary Artery Bypass Grafting: A Single-Center Study
1College of Medicine, University of Kentucky, Lexington, Kentucky.
Insights
Postoperative atrial fibrillation (POAF) after coronary artery bypass grafting (CABG) affects nearly 9% of patients. POAF significantly increases infection, bleeding, stroke, and mortality risks, prolonging hospital stays.
Area of Science:
- Cardiology
- Cardiac Surgery
- Clinical Outcomes Research
Background:
- Postoperative atrial fibrillation (POAF) is a frequent complication after coronary artery bypass grafting (CABG).
- POAF is linked to increased patient morbidity and elevated healthcare expenditures.
- Understanding POAF's impact on CABG outcomes is crucial for patient management.
Purpose of the Study:
- To determine the incidence of POAF in isolated CABG patients.
- To evaluate the impact of POAF on postoperative complications, mortality, and resource utilization.
Main Methods:
- Retrospective observational study of 2,671 isolated CABG patients (2006-2022).
- Exclusion of patients with preoperative atrial fibrillation.
- Comparison of outcomes (infection, bleeding, stroke, mortality, length of stay) between POAF and non-POAF groups.
Main Results:
- POAF incidence was 8.9% (238/2,671 patients).
- POAF patients exhibited higher rates of infection (7.56% vs. 5.75%), bleeding (5.04% vs. 2.84%), and stroke (5.46% vs. 2.01%).
- POAF was associated with increased mortality and prolonged intensive care unit (ICU) and hospital length of stay (LOS).
Conclusions:
- POAF significantly elevates morbidity and mortality in CABG patients.
- POAF contributes to increased healthcare resource utilization.
- Early detection and intervention strategies for POAF are essential to improve CABG outcomes.
Abstract:
Postoperative atrial fibrillation (POAF) is a common complication following coronary artery bypass grafting (CABG), associated with increased morbidity and health care costs. This study examines the incidence and impact of POAF on outcomes in CABG patients at a single institution. This retrospective observational study included patients undergoing isolated CABG between 2006 and 2022, excluding those with preoperative atrial fibrillation. Data include demographics, length of stay (LOS), mortality, and complications (Bleeding, stroke, and infection rates), comparing outcomes in patients with and without POAF. Among 2,671 patients, 238 (8.9%) developed POAF. POAF patients had higher rates of infection (7.56 vs. 5.75%), postoperative bleeding (5.04 vs. 2.84%), and stroke (5.46 vs. 2.01%). Thirty-day, 2-year, and 5-year mortality rates were 1.3, 7.8, and 24%, respectively. Intensive care unit (ICU) and hospital LOS were also prolonged in POAF patients as well. A total of 63.6 and 8.44% of POAF patients were discharged within 5 days from the hospital and ICU, respectively. Compared with 73.1 and 15.8% of non-POAF patients experienced no complications. POAF significantly impacts CABG patient outcomes, increasing morbidity, mortality, and resource utilization. Monitoring and early intervention are essential to mitigate these effects.
