Özet:

Objectives: This study aims to investigate the predictive value of platelet/neutrophil ratio (PNR) as a marker for postoperative atrial fibrillation (POAF) in addition to neutrophil/lymphocyte (NLR) and platelet/lymphocyte (PLR) measured in the preoperative period in patients who underwent coronary artery bypass grafting (CABG). Patients and methods: The data of a total of 122 patients (89 males, 33 females; mean age 63.2±9.19, range, 41 to 86 years) who underwent isolated CABG in our clinic and had no prior atrial fibrillation history between May 2018 and February 2020 were reviewed retrospectively. The patients were divided into two groups as those with and without POAF. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy were calculated. Results: Postoperative atrial fibrillation was detected in 36 of 122 patients. A significant difference was found in lymphocyte count (p=0.043), NLR (p=0.01), and PNR (p=0.048) in the patients who developed POAF. In the univariate logistic regression model, NLR was found to be an independent predictor for POAF development with 75% sensitivity, 53% specificity, 61.5% PPV, 67.9% NPV, and 64% accuracy (AUC: 0.646, p=0.01). In the POAF patients, the ROC analysis was performed to determine the diagnostic value of the PNR; however, no significant results were obtained. Conclusion: Our study results show an independent association between baseline NLR and POAF after CABG surgery.

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