Related Experiment Video
Updated: Jul 6, 2026
Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Predictors of postoperative atrial fibrillation after coronary artery bypass graft surgery
Majid Haghjoo1, Hossein Basiri, Mehrasa Salek
1Department of Pacemaker and Electrophysiology, Rajaie Cardiovascular Medical and ResearchCenter, Iran University of Medical Sciences, Tehran, Iran. majid.haghjoo@gmail.com
Insights
Predictors of postoperative atrial fibrillation (AF) after coronary artery bypass grafting (CABG) include older age, P-wave abnormalities, larger left atrium, and failure to graft the right coronary artery. These factors aid in preoperative risk stratification for CABG patients.
Area of Science:
- Cardiology
- Cardiac Surgery
- Clinical Research
Background:
- Atrial fibrillation (AF) is a common complication following coronary artery bypass grafting (CABG).
- Identifying predictors of post-CABG AF is crucial for risk stratification and management.
- Previous studies have explored various factors, but a focused analysis on a pure CABG cohort is warranted.
Purpose of the Study:
- To identify preoperative, intraoperative, and postoperative predictors of AF in patients undergoing CABG.
- To establish a basis for improved risk assessment and potential intervention strategies.
Main Methods:
- A prospective study involving 302 consecutive patients undergoing CABG.
- Collection of comprehensive clinical, electrocardiographic, echocardiographic, and laboratory data.
- Monitoring for the development of post-CABG AF.
Main Results:
- Postoperative AF occurred in 15% of patients.
- Independent predictors identified through logistic regression included older age, abnormal P-wave morphology, larger left atrial dimension, failure to graft the right coronary artery, and postoperative adrenergic use.
- Univariate analysis also highlighted other associated factors such as mitral regurgitation and left main coronary artery involvement.
Conclusions:
- Age, P-wave morphology, left atrial dimension, failure to graft the right coronary artery, and postoperative adrenergic use are independent predictors of post-CABG AF.
- Preoperative clinical data, ECG, and echocardiography are valuable tools for stratifying surgical patients at risk of AF.
- Further research may focus on targeted interventions based on these identified predictors.
Objectives:
The present study was aimed to identify the preoperative, intraoperative, and postoperative predictors of AF in a pure cohort of the patients with coronary artery disease who underwent CABG surgery.
Methods:
Between November 2005 and May 2006, 302 consecutive patients were included in this prospective study. All the relevant clinical, electrocardiographic, echocardiographic, and laboratory data were gathered in the included patients and they were also monitored for development of post-CABG AF.
Results:
Postoperative AF occurred in 46 (15%) of patients. By univariate analysis, older age, P-wave abnormality in ECG, presence of mitral regurgitation, larger left atrium (LA), left main coronary artery involvement, failure to graft right coronary artery (RCA), and adrenergic use in ICU were significantly associated with occurrence of post-CABG AF (all P< 0.05). However, in the logistic regression model, age (OR: 1.067, 95%CI: 1.02-1.116, P=0.005), LA dimension (OR: 1.102, 95%CI: 1.017-1.1936, P=0.017), P-wave morphology (OR: 12.07, 95%CI: 3.35-48.22, P=0.0001), failure to graft RCA (OR: 3.57, 95%CI: 1.20-10.64, P=0.022), and postoperative adrenergic use (OR: 0.35, 95%CI: 0.13-0.93, P=0.036) remained independently predictive of postoperative AF.
Conclusion:
The present study suggested that age, P-wave morphology, LA dimension, failure to graft right coronary artery, and postoperative adrenergic use were independent predictors of post-CABG AF. Therefore, clinical data, ECG and echocardiography may be useful in preoperative risk stratification of the surgical patients for the occurrence of post-CABG AF.
Related Concept Videos
01:23Peripheral Artery Disease V: Postoperative Nursing Management
01:28Cardiomyopathy VII: Pre and Post Operative Nursing Management
01:22Aneurysm IV: Nursing Management