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Acta bioquímica clínica latinoamericana

versión impresa ISSN 0325-2957versión On-line ISSN 1851-6114


ASTUDILLO, Osvaldo Germán  y  BAVA, Amadeo Javier. Evaluation of the VIRAPID® Hydatidosis rapid test. Acta bioquím. clín. latinoam. [online]. 2018, vol.52, n.3, pp.355-360. ISSN 0325-2957.

The presumptive diagnosis of cystic echinococcosis (EQ) is based on clinical and imaging studies, particularly those that apply Ultrasound, in epidemiological data, and is confirmed with specific serology. In rural endemic areas, where imaging procedures are not always available, as with conventional serology due to the lack of sufficiently equipped laboratories, rapid diagnostic tests (TDRs) can be a very useful tool. The diagnostic accuracy of VIRAPID® Hydatidosis (Vircell, Spain) was evaluated here, compared with two commercial methods frequently used in the Laboratory, for the diagnosis of Hydatidosis: HIDATEST (Laboratorio Lemos, Argentina) and ELISA IgG Echinococcus (Vircell, Spain). The analysis was performed on 224 samples from the same number of patients; 48 (21.44%) belonged to patients with probable hydatid cysts, while 10 (4.46%) belonged to patients with non-parasitic cysts. A total of 166 (74.10%) samples that were previously negative in the casuistry of our Laboratory were added. For the three methods mentioned above, the agreement between the results obtained was evaluated by the Kappa statistics, where in all the cases an almost excellent degree of agreement could be appreciated. The Sensitivity and Specificity of VIRAPID® was 94.12%, 98.88%, ELISA 90.57%, 99.44% and HIDATEST 96.00%, 96.17%, respectively. TDRs for hydatidosis may be useful in settings with limited resources to establish diagnostic certainty. The VIRAPID® test showed a very good performance, although it would be interesting to evaluate the sensitivity of the test in the presence of inactive cysts, which can pose problems for the diagnosis.

Palabras clave : Immunochromatography; Hydatidosis; Rapid test.

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