Predictors of Postoperative Atrial Fibrillation after CABG Surgery
Author Information
Author(s): Haghjoo Majid MD, Basiri Hossein MD, Salek Mehrasa MD, Sadr-Ameli Mohammad Ali MD, Kargar Faranak MD, Raissi Kamal MD, Omrani Gholamreza MD, Tabatabaie Mohammad Bagher MD, Sadeghi Hassan Mirmohammad MD, Tabaie Ali Sadeghpour MD, Baghaie Ramin MD
Primary Institution: Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
Hypothesis
What are the predictors of postoperative atrial fibrillation in patients undergoing coronary artery bypass graft surgery?
Conclusion
Age, P-wave morphology, left atrial dimension, failure to graft the right coronary artery, and postoperative adrenergic use are independent predictors of postoperative atrial fibrillation.
Supporting Evidence
- Postoperative AF occurred in 15% of patients.
- Older age and P-wave abnormality were significantly associated with postoperative AF.
- Logistic regression identified several independent predictors of postoperative AF.
Takeaway
This study found that certain factors like age and heart measurements can help doctors predict if a patient will have heart rhythm problems after heart surgery.
Methodology
This was a prospective study involving 302 consecutive patients scheduled for CABG, with data collected on various clinical and echocardiographic parameters.
Limitations
The study may not account for all potential confounding factors and was limited to a specific patient cohort.
Participant Demographics
71.5% male, mean age 58.5 years, with 31% aged 65 or older.
Statistical Information
P-Value
P=0.005 for age, P=0.017 for LA dimension, P=0.0001 for P-wave morphology, P=0.022 for failure to graft RCA, P=0.036 for adrenergic use.
Confidence Interval
95%CI: 1.02-1.116 for age, 95%CI: 1.017-1.1936 for LA dimension, 95%CI: 3.35-48.22 for P-wave morphology, 95%CI: 1.20-10.64 for failure to graft RCA, 95%CI: 0.13-0.93 for adrenergic use.
Statistical Significance
p<0.05
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