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Acta bioquímica clínica latinoamericana
versión impresa ISSN 0325-2957versión On-line ISSN 1851-6114
Resumen
CARBALLO, Orlando Gabriel et al. Armonización de la determinación de ANCA por inmunofluorescencia indirecta: primera reunión argentina. Acta bioquím. clín. latinoam. [online]. 2021, vol.55, n.2, pp.151-163. ISSN 0325-2957.
Anti-neutrophil cytoplasmic antibodies (ANCA) tests are widely used in daily clinical practice as a useful tool for the diagnosis of pathologies such as granulomatosis with polyangiitis, microscopic polyangiitis, pauci-immune necrotizing segmental glomerulonephritis and eosinophilic granulomatosis with polyangiitis, ulcerative colitis, primary sclerosing cholangitis, Crohn’s disease, etc. These antibodies are directed against different antigenic epitopes of various proteins which are present in the neutrophil cytoplasm. ANCA testing is usually carried out by using indirect immunofluorescence (IIF) method. The determination of ANCA presents some difficulties in the definition of the images of the different patterns, work protocols and result reports uniformity. The “Harmonization Conference on the Determination of ANCA by IIF” was held within the framework of the X Argentine Congress on Quality in the Clinical Laboratory and VIII Latin American Conference on Quality in the Clinical Laboratory, in Buenos Aires, Argentina, on October 24, 2018, in order to present, discuss and agree on different aspects of this method. Some initial proposals were discussed, arriving at general recommendations to provide standards of work and an image interpretation, with the aim of reducing the variability of results among the clinical-immunological laboratories.
Palabras clave : Anti-neutrophil cytoplasmic antibody; Harmonization; Indirect immunofluorescence.