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- 저자 : Suerbaum Sebastian (검색결과 1 건)
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Mattwich Carolina,Huber Kristina,Bretzel Gisela,Suerbaum Sebastian,Wieser Andreas,Dichtl Karl 대한진단검사의학회 2024 Annals of Laboratory Medicine Vol.44 No.2
Background: Echinococcosis is a neglected tropical disease that is severely underdiag- nosed in resource-limited settings. In developed countries, diagnosing echinococcosis is challenging, and reliable serological assays are urgently needed. In the Central European Alps, EM is more common than EG; however, data on the diagnostic performance of as- says for EM cases are scarce. We evaluated the suitability of nine antibody assays for rou- tine diagnostics. Methods: Nine commercially available serological assays for detecting anti-Echinococcus antibodies were compared head-to-head using samples collected from 50 patients with echinococcosis and 50 age- and sex-matched control subjects. The assays are Anti-Echi- nococcus ELISA (IgG) (Euroimmun), Echinococcus IgG ELISA (DRG), Echinococcus IgG ELISA (IBL International), Echinococcus Western Blot IgG (LDBIO Diagnostics), EUROLINE WB (Euroimmun), Hydatidosis ELISA IgG (VirCell), Hydatidosis VIRCLIA IgG Monotest (Vir- Cell), Ridascreen Echinococcus IgG (R-Biopharm), and Virapid Hydatidosis (VirCell). The cases were ranked according to the WHO-Informal Working Group on Echinococcosis (WHO-IWGE) criteria as confirmed, probable, or possible. Results: The performance of the assays varied greatly, with overall sensitivities ranging be- tween 50% and 88% and specificities between 62% and 100%. We observed a trend to- ward better performance with cases classified as “confirmed” using the WHO-IWGE crite- ria. Combined analysis with sequential screening and confirmatory testing resulted in a maximum sensitivity of 84% and specificity of 100%. Differentiation between EG and EM infections is clinically relevant but was found to be unreliable. Conclusions: Echinococcus serological assays are highly variable in terms of sensitivity and specificity. Knowledge of the pre-test probability in the patient cohort is required to choose a suitable assay. A combined approach with screening and confirmatory assays may be the best diagnostic strategy in many situations.
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