Features of Atrial Fibrillation Pathogenesis and Prognosis in Chronic Obstructive Pulmonary Patients during the COVID-19 Pandemic.

Background: Atrial fibrillation (AF) is observed in arterial hypertension, heart failure, ischemic heart disease, and pulmonary pathology, particularly, chronic obstructive pulmonary disease (COPD). COPD in turn is a risk factor for developing these cardiovascular diseases and various arrhythmias. In the coronavirus disease (COVID) situation, such comorbid patients are the most vulnerable group with a high risk of adverse outcomes.