Performance of the Euroimmun Aspergillus Antigen ELISA for the Diagnosis of Invasive Pulmonary Aspergillosis in Bronchoalveolar Lavage Fluid
| Autor: | Matthias Egger, Samuel Penziner, Karl Dichtl, Max Gornicec, Lisa Kriegl, Robert Krause, Ethan Khong, Sanjay Mehta, Milenka Vargas, Sara Gianella, Magali Porrachia, Jeffrey D. Jenks, Iswariya Venkataraman, Martin Hoenigl |
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| Přispěvatelé: | Hanson, Kimberly E |
| Rok vydání: | 2022 |
| Předmět: |
Microbiology (medical)
Antigens Fungal Enzyme-Linked Immunosorbent Assay Mycology Sensitivity and Specificity intensive care unit Medical and Health Sciences Microbiology Mannans Rare Diseases Clinical Research Humans Antigens skin and connective tissue diseases Retrospective Studies Invasive Pulmonary Aspergillosis invasive aspergillosis screening and diagnosis Agricultural and Veterinary Sciences Prevention respiratory system Biological Sciences bacterial infections and mycoses respiratory disease Aspergillus antigen respiratory tract diseases Detection Aspergillus Fungal galactomannan hematologic malignancy Bronchoalveolar Lavage Fluid 4.2 Evaluation of markers and technologies |
| Zdroj: | Journal of clinical microbiology, vol 60, iss 4 J Clin Microbiol |
| Popis: | Invasive pulmonary aspergillosis (IPA) is a life-threatening disease that affects mainly immunocompromised hosts. Galactomannan testing from serum and bronchoalveolar lavage fluid (BALF) represents a cornerstone in diagnosing the disease. Here, we evaluated the diagnostic performance of the novel Aspergillus-specific galactomannoprotein (GP) enzyme-linked immunosorbent assay (ELISA; Euroimmun Medizinische Labordiagnostika) compared with the established Platelia Aspergillus GM ELISA (GM; Bio-Rad Laboratories) for the detection of Aspergillus antigen in BALF. Using the GP ELISA, we retrospectively tested 115 BALF samples from 115 patients with clinical suspicion of IPA and GM analysis ordered in clinical routine. Spearman's correlation statistics and receiver operating characteristics (ROC) curve analysis were performed. Optimal cutoff values were determined using Youden's index. Of 115 patients, 1 patient fulfilled criteria for proven IPA, 42 for probable IPA, 15 for putative IPA, 10 for possible IPA, and 47 did not meet criteria for IPA. Sensitivities and specificities for differentiating proven/probable/putative versus no IPA (possible excluded) were 74% and 96% for BALF GP and 90% and 96% for BALF GM at the manufacturer-recommended cutoffs. Using the calculated optimal cutoff value of 12 pg/mL, sensitivity and specificity of the BALF GP were 90% and 96%, respectively. ROC curve analysis showed an area under the curve (AUC) of 0.959 (95% confidence interval [CI] of 0.923 to 0.995) for the GP ELISA and an AUC of 0.960 (95% CI of 0.921 to 0.999) for the GM ELISA for differentiating proven/probable/putative IPA versus no IPA. Spearman's correlation analysis showed a strong correlation between the ELISAs (rho = 0.809, P |
| Databáze: | OpenAIRE |
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