P398 COVID-19-associated pulmonary aspergillosis: Species distribution and susceptibility profiles

Abstract

Poster session 3, September 23, 2022, 12:30 PM - 1:30 PMObjectivesThis study aimed to investigate the species distribution and susceptibility profiles of Aspergillus species isolated from patients admitted to the intensive care unit with severe COVID-19 in Isfahan, Iran, between April 2021 and March 2022.MethodsThis retrospective study included intubated patients with COVID-19 in three referral COVID-19 hospitals. Tracheal aspirate (TA) samples were taken from 267 patients to investigate pulmonary co-infections. COVID-19-associated aspergillosis (CAPA) was defined according to the 2020 European Confederation of Medical Mycology/International Society of Human and Animal Mycosis consensus criteria. Aspergillus species obtained from samples were characterized based on conventional and molecular assays. In vitro antifungal susceptibility testing was performed on the obtained isolates according to the guidelines from the Clinical and Laboratory Standards Institute.ResultsThe mean age of the patients was 61.73 ± 12.69 years. The mean length of hospitalization and admission in ICU were 18.77 ± 12.94 and 13.51 ± 9.83 days, respectively. A total of 61 (22.9%) patients presented with a single cavity lesion. Pulmonary artery pseudoaneurysm was seen in seven patients and post-COVID-19 changes were seen in all patients. Based on the conventional and molecular techniques, 72 isolates of Aspergillus species (26.9%), including A. flavus (10.1%%), A. fumigatus (8.6%%), A. niger (3.3%), A. tubingensis (2.9%), A. terreus (1.1%), A. luchuensis (0.37%) A. quadrillineatus, and (0.37%), were obtained from 267 patients. MIC results showed that all Aspergillus species were susceptible to all tested antifungal drugs.ConclusionAccess to priority clinical groups, improving the care of patients with simultaneous pulmonary aspergillosis with COVID-19, and identifying Aspergillus species are essential steps in the care cascade to manage those affected by them.