Evaluation of the prognostic value of the admission ECG in COVID-19 patients: a meta-analysis.

The assessment of the prognostic value of the admission electrocardiography (ECG) (specifically of the duration of the PR and QTc intervals, the QRS complex and the heart rate [HR]) in COVID-19 patients on the basis of nine observational studies (n=1,424) indicates that relatively long duration of the QTc interval and QRS complex, as well as higher HR, are linked to a severe course of COVID-19, which may be of use in risk stratification. Since there are important differences in suggested indicators of adverse prognosis between observational studies, further research is necessary to clarify high-risk criteria.