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A national strategy to diagnose COVID-19 associated invasive fungal disease in the ICU
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Abstract
Background
Fungal co-infection is a recognised complication of respiratory virus infections, increasing morbidity and mortality, but can be readily treated if diagnosed early. An increasing number of small studies describing aspergillosis in COVID-19 patients with severe respiratory distress are being reported, but comprehensive data is lacking. The aim of this study was to determine the incidence, risk factors and impact of invasive fungal disease in adult COVID-19 patients with severe respiratory distress.
Methods
An evaluation of a national, multi-centre, prospective cohort evaluation of an enhanced testing strategy to diagnose invasive fungal disease in COVID-19 intensive care patients. Results were used to generate a mechanism to define aspergillosis in future COVID-19 patients.
Results
One-hundred and thirty-five adults (median age: 57, M/F: 2·2/1) were screened. The incidence was 26.7% (14.1% aspergillosis, 12·6% yeast infections). The overall mortality rate was 38%; 53% and 31% in patients with and without fungal disease, respectively (P: 0.0387). The mortality rate was reduced by the use of antifungal therapy (Mortality: 38·5% in patients receiving therapy versus 90% in patients not receiving therapy (P: 0.008). The use of corticosteroids (P: 0.007) and history of chronic respiratory disease (P: 0.05) increased the likelihood of aspergillosis.
Conclusions
Fungal disease occurs frequently in critically ill, mechanically ventilated COVID-19 patients. The survival benefit observed in patients receiving antifungal therapy implies that the proposed diagnostic and defining criteria are appropriate. Screening using a strategic diagnostic approach and antifungal prophylaxis of patients with risk factors will likely enhance the management of COVID-19 patients.