Abstract
Objective: Various cardiac arrhythmias, primarily atrial fibrillation (AF), have been reported to occur in 7% to 22% of patients hospitalized due to coronavirus disease 2019 (COVID-19). It has been shown that P wave dispersion (PWD) predicts the development of AF in different clinical situations and is closely related to the inflammatory process. The aim of this study is to determine the relationship between PWD and the development of new-onset AF in hospitalized patients due to COVID-19.
 
 Methods: 51 COVID-19 patients who developed AF and 72 COVID-19 patients who did not develop AF were included in the study as the control group retrospectively. Electrocardiography (ECG) was performed in all patients and PWD was calculated. In addition, demographic data, imaging findings and laboratory test results of all COVID-19 patients were obtained from the institutional digital database and recorded. 
 
 Results: Patients who developed AF were older and had a higher frequency of hypertension and heart failure (p
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