İbrahim Çağrı Kaya1, Halil İbrahim Bulut3, Merih Özbayburtlu1, Birkan Yenitürk2, Didem Gülhan2, Ozan Onur Balkanay4

1Clinic of Cardiovascular Surgery, Eskişehir Health, Practice and Research Hospital, Eskişehir, Türkiye
2İstanbul University Cerrahpaşa, Faculty of Medicine, İstanbul, Türkiye
3Clinic of Cardiac Surgery, Royal Brompton Harefield Hospital, London, United Kingdom
4Department of Cardiovascular Surgery, İstanbul University-Cerrahpaşa, Cerrahpaşa Faculty of Medicine, İstanbul, Türkiye

Keywords: Atrial fibrillation; coronary artery bypass; ischemic heart disease


Introduction: Traditionally, atrial fibrillation is considered a comorbid factor for coronary artery bypass surgery as well as other surgeries, however, current literature is still limited. In this study, the effects of preoperative atrial fibrillation on coronary artery bypass grafting were investigated.

Patients and Methods: Following the hospital’s clinical trials ethics committee approval, data from 151 patients who underwent isolated coronary artery bypass surgery were collected with the assistance of the hospital’s electronic records system. The follow-up duration was 12 months. Statistically significant P value cut-off taken as 0.05.

Results: The mean age was 61.5 and 26.6% (n= 40) of the patients were female. Preoperative atrial fibrillation (Afib) prevalence was 13.3% (n= 20). No significant differences were observed in patient demographics, metabolic, systemic, and cardiovascular conditions between the group with preoperative atrial fibrillation and the control group (p> 0.05). However, the previous myocardial infarction rate was found higher (38.9 vs. 70.0, p= 0.009), and carotid artery stenosis disease prevalence was found lower (18.2 vs. 0.0, p= 0.038), also mean glomerular filtration rate (GFR) was found lower (85.9 vs. 69.7, p= 0.002) in the patients with Afib. Intraoperative parameters were not statistically different among the group (p> 0.05). Despite the preoperative dysthymia history, myocardial infarction prevalence, and poor kidney function; there was no difference in terms of postoperative acute kidney injury rates, stroke rates, perioperative complication rates, and thirty-day and 12-month survival (p> 0.05). However, the re-revascularization requirement was higher in patients in the Afib group.

Conclusion: Atrial fibrillation is a prevalent comorbidity in coronary artery bypass grafting patients. However, it was not found as a factor that related to mortality or morbidity and coronary surgery seems feasible in this patient group.

Cite this article as: Kaya İÇ, Bulut Hİ, Özbayburtlu M, Yenitürk B, Gülhan D, Balkanay OO. Preoperative atrial fibrillation and coronary artery bypass grafting outcomes. Koşuyolu Heart J 2023;26(2):83-87.

Ethics Committee Approval

The approval for this study was obtained from Eskişehir City Hospital Non-invasive Clinical Research Ethics Committee (Decision no: ESH/GOEK 2023/2, Date: 15.03.2023).

Peer Review

Externally peer-reviewed.

Author Contributions

Concept/Design - HİB, İÇK; Analysis/Interpretation - HİB, İÇK; Data Collection - İÇK, MÖ; Writing - HİB, İÇK, BY, DG; Critical Revision - OOB, İÇK, HİB; Final Approval - All of authors; Statistical Analysis -HİB; Overall Responsibility - HİB.

Conflict of Interest

The authors have no conflicts of interest to declare.

Financial Disclosure

The authors declare that this study has received no financial support.