1. Serum Lateral Flow assay with digital reader for the diagnosis of invasive pulmonary aspergillosis: A two-centre mixed cohort study.
- Author
-
Hoenigl, Martin, Egger, Matthias, Boyer, Johannes, Schulz, Eduard, Prattes, Juergen, and Jenks, Jeffrey D
- Subjects
Bronchoalveolar Lavage Fluid ,Humans ,Aspergillus ,Mannans ,Antigens ,Fungal ,Diagnostic Tests ,Routine ,Immunoassay ,Sensitivity and Specificity ,Retrospective Studies ,Adult ,Aged ,Aged ,80 and over ,Middle Aged ,Female ,Male ,Invasive Pulmonary Aspergillosis ,Young Adult ,Automation ,Laboratory ,Aspergillus galactomannan Lateral Flow assay ,COVID-19 ,HIV ,SARS-CoV2 ,galactomannan ,haematologic malignancy ,intensive care unit ,respiratory diseases ,serum ,solid organ transplant recipients ,Clinical Research ,Rare Diseases ,Microbiology ,Clinical Sciences - Abstract
BackgroundDetection of galactomannan (GM) from bronchoalveolar lavage fluid (BALF) or serum is broadly used for diagnosis of invasive aspergillosis (IA), although the sensitivity of GM from serum is lower in non-neutropenic patients. We evaluated the Aspergillus galactomannan Lateral Flow assay (LFA) with digital readout from serum in a mixed cohort of patients.MethodsWe performed a retrospective two-centre study evaluating the LFA from serum of patients with clinical suspicion of IA obtained between 2015 and 2021 at the University of California San Diego and the Medical University of Graz. The sensitivity and specificity was calculated for proven/probable aspergillosis versus no aspergillosis. Correlation with same-sample GM was calculated using Spearman correlation analysis and kappa statistics.ResultsIn total, 122 serum samples from 122 patients were analysed, including proven IA (n = 1), probable IA or coronavirus-associated pulmonary aspergillosis (CAPA) (n = 27), and no IA/CAPA/non-classifiable (n = 94). At a 0.5 ODI cut-off, the sensitivity and specificity of the LFA was 78.6% and 80.5%. Spearman correlation analysis showed a strong correlation between serum LFA ODI and serum GM ODI (ρ 0.459, p
- Published
- 2021