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Atrial fibrillation (AF) is the most common cardiac arrhythmia in adults with substantial morbidity and mortality. The diagnosis of AF is established by electrocardiogram showing heart rhythm without clear P waves with irregular RR intervals. The electrocardiographic diagnosis of AF is not always easy and can still hide pitfalls even for the most experienced cardiologist. We present the case of an 86 years old patient admitted to our hospital for Covid-19 infection affected by dilated cardiomyopathy with an electrocardiogram showing a non-specific intraventricular conduction delay mimicking sinus rhythm in the presence of AF., Competing Interests: Declaration of Competing Interest The Authors declares that there is no conflict of interest., (Copyright © 2022 Elsevier Inc. All rights reserved.)

During the coronavirus disease 2019 (COVID-19) worldwide pandemic, patients with cardiac implantable electronic device (CIED) refused scheduled follow-up visits because of the risk of infection. In this scenario, different telemedicine strategies have been implemented to ensure continuity of care to CIED patients. Patients can be monitored through dedicated applications, telephone calls, or virtual visits providing easy access to valuable information, such as arrhythmic events, acute decompensation manifestations, and device-related issues, without the need for in-person visits. This review provides a comprehensive description of the many possible applications of telemedicine for CIED patients during the COVID-19 period., Competing Interests: Disclosures The authors have nothing to disclose., (Copyright © 2021 Elsevier Inc. All rights reserved.)

COVID-19 mainly affects the respiratory system but has been correlated with cardiovascular manifestations such as myocarditis, heart failure, acute coronary syndromes, and arrhythmias. Cardiac arrhythmias are the second most frequent complication affecting about 30% of patients. Several mechanisms may lead to an increased risk of cardiac arrhythmias during COVID-19 infection, ranging from direct myocardial damage to extracardiac involvement. The aim of this review is to describe the role of COVID-19 in the pathogenesis of cardiac arrhythmias and provide a comprehensive guidance for their monitoring and management., Competing Interests: Disclosure Dr J.D. Burkhardt is a consultant for Biosense Webster and Stereotaxis. Dr L. Di Biase is a consultant for Biosense Webster, Boston Scientific, Stereotaxis, and St. Jude Medical; and has received speaker honoraria from Medtronic, Atricure, EPiEP, and Biotronik. Dr A. Natale has received speaker honoraria from Boston Scientific, Biosense Webster, St. Jude Medical, Biotronik, and Medtronic; and is a consultant for Biosense Webster, St. Jude Medical, and Janssen. All other authors have reported that they have no relationships relevant to the contents of this article to disclose., (Copyright © 2021 Elsevier Inc. All rights reserved.)