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Published on: February 26, 2013
Risk Factors of Postoperative Atrial Fibrillation After Isolated Coronary Artery Bypass Grafting Surgery in the
Jia-Yi Zhou1,2, Jian-Liang Zhang1,2, Lei Xi1,2
1Department of Cardiovascular Surgery, The Institute of Cardiovascular Diseases & TEDA International Cardiovascular Hospital, Tianjin University & Chinese Academy of Medical Sciences, Tianjin, China.
Insights
Postoperative atrial fibrillation (POAF) affects 30.94% of patients after coronary artery bypass grafting (CABG). Old age and low ejection fraction (EF) are key independent risk factors for POAF, necessitating targeted perioperative care.
Area of Science:
- Cardiology
- Cardiac Surgery
- Clinical Research
Background:
- Postoperative atrial fibrillation (POAF) is a frequent complication following coronary artery bypass grafting (CABG).
- POAF significantly increases hospital stay duration and healthcare costs.
- Identifying predictive factors for POAF is crucial for patient management.
Purpose of the Study:
- To identify perioperative risk factors associated with POAF in patients undergoing isolated CABG.
- To determine independent predictors of POAF in this patient cohort.
Main Methods:
- Retrospective analysis of 6229 patients who underwent isolated CABG between March 2015 and January 2023.
- Collection and analysis of preoperative and postoperative patient data.
- Application of univariate and multivariate logistic regression to identify risk factors for POAF.
Main Results:
- The incidence of POAF was 30.94% in the studied population.
- Univariate analysis identified age, hypertension, smoking, cardiopulmonary bypass (CPB) time, and ejection fraction (EF) as risk factors.
- Multivariate analysis confirmed old age (OR=1.062) and low EF (OR=0.980) as independent predictors of POAF.
Conclusions:
- POAF remains a significant concern after isolated CABG, with a 30.94% incidence in this cohort.
- Old age and low ejection fraction are independently associated with an increased risk of POAF.
- Enhanced perioperative monitoring and preventive strategies are recommended for patients with these risk factors.
Background:
Postoperative atrial fibrillation (POAF) is a common complication after coronary artery bypass grafting (CABG) that prolongs hospitalization and increases expenses.
Hypothesis:
Perioperative risk factors may predict POAF.
Methods:
From March 2015 to January 2023, 6229 patients who underwent isolated CABG and were in sinus rhythm before CABG were included in this retrospective study. The preoperative and postoperative variants of patients were collected and analyzed by univariate analyses between the patients with and without POAF. Multivariate logistic regression analysis was then used to study the independent risk factors for POAF.
Results:
The incidence of POAF in this group of patients was 30.94%. Univariate analyses demonstrated that age (p < 0.001), hypertension (p < 0.001), smoking (p < 0.05), cardiopulmonary bypass (CPB) time (p < 0.01), and ejection fraction (EF, p < 0.01) were the risk factors for POAF. Multivariate logistic regression analysis determined the independent risk factors associated with POAF were old age (odds ratio [OR] = 1.062, p = 0.000) and low EF (OR = 0.980; p = 0.008).
Conclusions:
In the current era, after isolated CABG surgery, there is still a quite high incidence of POAF (30.94% in this group of CABG patients). The main risk factors correlating to POAF include age, hypertension, smoking, CPB time, and EF. Among these factors, multivariate analysis identified old age and low EF as the independent risk factors associated with POAF. Particular care should be taken in the perioperative period for these patients in the prevention of POAF.
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