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Acta bioquímica clínica latinoamericana
versão impressa ISSN 0325-2957versão On-line ISSN 1851-6114
Resumo
GONZALEZ, Lucas et al. Immunoserology and molecular techniques for diagnosis of Chagas´ disease: rapid systematic review . Acta bioquím. clín. latinoam. [online]. 2017, vol.51, n.1, pp.63-74. ISSN 0325-2957.
In order to increase diagnostic accuracy, the World Health Organization recommends performing two or more immunoserological tests for the diagnosis of Chagas disease in chronic stage. The aim of this work was to make a rapid systematic review of the performance of immunoserological techniques and molecular methods in the general population. A total of 178 studies were identified, nine ofwhich were included. ELISA techniques showed the highest sensitivity (82-98%) and specificity (96-100%). Rapid methods presented values of sensitivity between 88-93% and 97-100% of specificity, while the molecular methods (PCR) showed highly variable levels of sensitivity (22-92%) and specificity (70-100%). These results indicate that ELISA techniques have adequate sensitivity and specificity. PCR, as well as rapid methods, showed great variability in the results, mainly due to the heterogeneity of the techniques and abundance of “in-house” methods.
Palavras-chave : Chagas; Diagnosis; Sensitivity; Specificity; Polymerase chain reaction; Enzyme-linked immunosorbent assay ELISA; Indirect immunofluorescence; Indirect hemagglutination.