Key result
Recent unstable angina and off-pump CABG were not significantly related to postoperative atrial fibrillation compared to stable on-pump CABG (39.0% and 25.0% vs 29.5%; p=0.412).
Why the study?
Does unstable angina or off-pump CABG predict postoperative atrial fibrillation in patients undergoing CABG?
Observational (n=117)
Does unstable angina or off-pump CABG predict postoperative atrial fibrillation in patients undergoing CABG?
p-value: p=0.412
Recent unstable angina and off-pump CABG procedures do not significantly increase the risk of postoperative atrial fibrillation compared to stable angina and on-pump procedures.
Does not support unstable angina or off-pump CABG as postoperative AF predictors; hypothesis-generating for other risk factors in observational CABG data.
OBJECTIVE: Atrial fibrillation (AF) is the most frequently encountered postoperative arrhythmic complication after coronary artery bypass grafting (CABG). The purpose of the present study was to investigate the incidence and predictors of postoperative AF in patients with stable and unstable angina pectoris undergoing on-pump and off-pump CABG procedures. DESIGN: One hundred and seventeen stable, unstable on-pump and off-pump CABG patients were included in the present study. Holter data were collected 1 day before the operation to the 2nd postoperative day. AF was registered as positive if any AF event occurred. RESULTS: The overall incidence of postoperative AF and sustained AF was 31.6 and 25.6%, respectively. Postoperative AF incidences in stable on-pump, unstable on-pump and stable off-pump patients were 29.5, 39.0 and 25%, respectively (p = 0.412). Patients with AF had compromised postoperative haemodynamic function, greater need of inotropic support and antiarrhythmic medication, and longer intensive care unit (ICU) stays. CONCLUSION: Post-CABG AF is associated with more complicated postoperative outcome. Recent unstable angina and off-pump procedure is not related to the occurrence of post-CABG AF.
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Wu et al. (2003) conducted an observational in Stable and unstable angina pectoris undergoing CABG (n=117). Unstable angina and off-pump CABG vs. Stable angina and on-pump CABG was evaluated on Postoperative atrial fibrillation (p=0.412). Recent unstable angina and off-pump CABG were not significantly related to postoperative atrial fibrillation compared to stable on-pump CABG (39.0% and 25.0% vs 29.5%; p=0.412).
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