ABSTRACT
Background: COVID-19 is an infectious entity caused by the SARS-CoV-2 virus. There have been reported risk factors like chronic airway entities such as chronic obstructive pulmonary disease. Since asthma is a respiratory disease, it could be found as a risk factor to develop severe COVID-19 disease. However, most of the evidence reveals that asthma isn't associated with higher severity or worse prognosis. Madrid has been one of the most affected regions in the world during the pandemic. La Paz University Hospital has developed one of the largest cohorts in Europe. We used this data and described several characteristics around COVID-19 disease in asthma patients. Method(s): We collected data by individual review of the patients' electronic clinical records (DXC-HCIS, Healthcare Information System). Then we describe the general characteristics of the patients, their asthma, and COVID-19 evolution. The analyzed data includes general demographics, asthma classification (T2 or no T2), basal treatment, and pre-COVID-19 asthma control (by ACT and exacerbations). We studied acute COVID-19 disease symptoms and treatment, the presence of pneumonia, thromboembolism, the need for hospitalization, admission to the intensive care unit (ICU), and mortality. Result(s): The total number of patients studied was 173, the majority were women (67%) with an average age of 55 and type 2 asthma (67%) which was controlled before COVID-19 disease (ACT median was 25, the median of exacerbations was 0). The majority used the combination of long-acting beta 2 agonists and inhaled corticosteroids (ICS+LABA) for asthma treatment (67%). Only 2 patients were treated with omalizumab, which was discontinued during COVID-19 disease. The most frequent symptoms were cough and dyspnea (80% and 75% respectively). 4% of patients presented thromboembolism. 60% had pneumonia. 60% required hospitalization, 11% of whom died due to COVID-19 complications. The most common treatment was hydroxychloroquine and azithromycin (75% and 45% respectively), followed by oral corticosteroids (15%), lopinavir/ritonavir (8%), tocilizumab (5%), and remdesivir (2%). Conclusion(s): This cohort represents asthmatic patients in La Paz University Hospital. We observed that the proportion of hospitalizations, ICU admissions, and mortality due to COVID-19 was similar as described in previous studies and therefore no different from non-asthmatic patients. The characteristics presented in this study help us better understand the complications of asthmatic patients thanks to one of the largest COVID-19 cohorts in Europe.