Key result
The incidence of new-onset atrial fibrillation after isolated coronary artery bypass grafting was 28.4%, with advanced age identified as the strongest predictor.
Why the study?
Atrial fibrillation incidence is considerably high after open heart surgery and may prolong hospitalization and increase mortality, prompting investigation into perioperative risk factors after isolated CABG.
What are the perioperative risk factors for new-onset postoperative atrial fibrillation in patients undergoing isolated CABG?
Cohort (n=327)
No
What are the perioperative risk factors for new-onset postoperative atrial fibrillation in patients undergoing isolated CABG?
Advanced age, stroke history, depression, COPD, and IABP use are key risk factors for new-onset atrial fibrillation following isolated CABG, which occurs in approximately 28% of patients.
AIMS: Incidence of atrial fibrillation is considerably high after open heart surgery, which may prolong hospitalization and increase mortality. The aim of the present study is to investigate the perioperative risk factors for the occurrence of new-onset atrial fibrillation following isolated coronary artery bypass grafting. DESIGN: A retrospective study. METHODS: A total of 327 Korean patients recorded to have undergone first-time isolated coronary artery bypass grafting and no preoperative history of atrial fibrillation were included. The data were obtained from electronic health record from January 2010 to December 2019 at a tertiary care hospital. Predictors of new-onset atrial fibrillation after the surgery were identified by multivariate logistic regression analysis. RESULTS: The incidence rate of new-onset atrial fibrillation after coronary artery bypass grafting was approximately 28.4%, and the highest occurrence rate was 44.1% on postoperative day 2. Our main finding showed that advanced age was the strongest predictor of atrial fibrillation after coronary artery bypass grafting. In addition, history of stroke and depression, chronic obstructive pulmonary disease and intraoperative use of intra-aortic balloon pump were shown to be the risk factors. CONCLUSION: Our findings showed that approximately 28% patients had new-onset atrial fibrillation after the surgery. Healthcare professionals should proactively assess risk factors for postoperative atrial fibrillation and focus more on older adults with pre-existing comorbidities, such as stroke, depression and chronic obstructive pulmonary disease. IMPACT: Older adults with history of stroke, depression and comorbid chronic obstructive pulmonary disease should be carefully monitored closely during perioperative period. The study highlights that early assessment of new-onset postoperative atrial fibrillation can contribute to promote the quality of nursing care and frontline nurses may be a vital role in timely detection of atrial fibrillation after surgery. Prospective studies are required to identify the mechanisms connecting perioperative risk factors for atrial fibrillation after cardiac surgery.
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Choi et al. (2021) conducted a cohort in isolated coronary artery bypass grafting (n=327). Perioperative risk factors (advanced age, stroke, depression, COPD, intra-aortic balloon pump) was evaluated on new-onset atrial fibrillation. The incidence of new-onset atrial fibrillation after isolated coronary artery bypass grafting was 28.4%, with advanced age identified as the strongest predictor.
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