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İlhan Koyuncu1, Emin Koyun2
1Department of Cardiology, İzmir Bakırçay University, İzmir, Türkiye
2Department of Cardiology, Sivas Numune Hospital, Sivas, Türkiye
Keywords: Atrial fibrillation, coronary artery bypass graft, P-wave indices, P-wave peak time
Objectives: The study aimed to examine the relationship between P-wave peak time (PWPT) and postoperative atrial fibrillation (POAF) in electrocardiograms recordings before the coronary artery bypass graft (CABG) surgery.
Patients and methods: The retrospective study was conducted with 203 patients who underwent CABG surgery between January 2015 and January 2023. Patients were divided into two groups: those who developed POAF (n=40; 30 males, 10 females; mean age: 68.1±8.7 years; range, 18 to 85 years) and those who did not (n=163; 122 males, 41 females; mean age: 62.9±9.7 years; range, 18 to 85 years). The PWPT was calculated on the patients' preoperative electrocardiograms.
Results: The PWPT in lead V1 (PWPT-V1) and age were identified as strong predictors of POAF in CABG patients. In the receiver operating characteristic curve analysis, it was found that a PWPT-V1 value >41.5 had 79% sensitivity and 73% specificity for the prediction of the POAF (area under the curve=0.806, p<0.001).
Conclusion: The PWPT-V1 can predict the development of POAF in patients undergoing CABG surgery. Thanks to this parameter,
necessary prophylactic treatments can be performed in these patients before surgery. As a result, mortality and morbidity can be reduced
in these patients.
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