Abstract
BackgroundThe clinical effects of Aspergillus fumigatus in the cystic fibrosis (CF) airway, with the exception of allergic bronchopulmonary aspergillosis, is unclear. MethodsCF adolescents and adults (age 14 years and older) underwent bacterial and semi-selective fungal culture testing to determine the prevalence of fungi in the CF respiratory tract and the independent association between the presence of Aspergillus fumigatus and clinical characteristics. ResultsAspergillus fumigatus (10.3%) and Candida species (57.8%) were the most common filamentous fungi and yeast seen respectively in the sputa of 206 individuals with CF. Inhaled corticosteroid (ICS) use was more common in Aspergillus fumigatus-positive than Aspergillus fumigatusnegative (100% versus 75.8%, p = .01). Aspergillus fumigatus was significantly associated with lower respiratory domain score (β −8.74, 95% CI −16.6, −0.88, p = .03), representing worse respiratory-related quality of life, accounting for demographics, disease characteristics, and the presence of a pulmonary exacerbation. ConclusionThe presence of Aspergillus fumigatus in CF sputum was associated with worse respiratory quality of life in CF in a crosssectional, single center study. Longitudinal analysis examining the clinical implications of Aspergillus fumigatus on respiratory health over time is needed.
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