• Mustafa Yenerçağ, Uğur Arslan, Onur O Şeker, Seçkin Dereli, Ahmet Kaya, Mustafa Doğduş, Çağatay E Öztürk, Çetin K Akpınar, and Ahmet Şen.
• Department of Cardiology, University of Health Sciences Samsun Training and Research Hospital, Samsun.
• J Cardiovasc Med (Hagerstown). 2021 Mar 1; 22 (3): 197-203.

AimThe aim of the current study was to evaluate P-wave dispersion (PWD) as a predictor of atrial fibrillation in patients with newly diagnosed COVID-19. In addition, the relationship between the PWD and inflammation parameters was investigated.MethodsA total of 140 newly diagnosed COVID-19 patients and 140 age- and sex-matched healthy individuals were included in the study. The risk of atrial fibrillation was evaluated by calculating the electrocardiographic PWD. C-reactive protein (CRP), white blood cell, neutrophil and neutrophil-to-lymphocyte ratio (NLR) were measured in patients with newly diagnosed COVID-19.ResultsPWD, white blood cell, NLR and CRP levels were significantly higher in the COVID-19 group than the control group. There was a significant positive correlation between PWD and CRP level (rs = 0.510, P < 0.001) and NLR in COVID-19 group (rs = 0.302, P = 0.001). In their follow-up, 13 (9.3%) patients, 11 of whom were in the ICU, developed new atrial fibrillation.ConclusionOur study showed for the first time in literature that the PWD, evaluated electrocardiographically in patients with newly diagnosed COVID-19, was prolonged compared with normal healthy individuals. A positive correlation was found between PWD, CRP level and NLR. We believe that pretreatment evaluation of PWD in patients with newly diagnosed COVID-19 would be beneficial for predicting atrial fibrillation risk.Copyright © 2020 Italian Federation of Cardiology - I.F.C. All rights reserved.

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