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Abstract: The presence of antinuclear antibodies (ANA) is associated with a wide range of ANA-associated autoimmune rheumatic diseases (AARD). The most commonly method used for the detection of ANA is indirect immunofluorescence (IIF) on HEp-2 cells. This method is very sensitive but unspecific. As a consequence, ANA testing on HEp-2 substrates outside a proper clinical specialist framework may lead to inappropriate referrals to tertiary care specialists and, worst case inappropriate and potentially toxic therapy for the patient. Among ANA, isolated anti-DFS70 antibodies represent a potentially important biomarker that can be clinically used to discriminate AARD from non-AARD patients in ANA IIF positive individuals. Therefore, their presence may avoid unnecessary follow-up testing and referrals. In our study, we investigated if the implementation of a new ANA workup algorithm allowing for the identification of anti-DFS70 antibodies is cost-effective through the reduction of both unnecessary follow-up testing and outpatient clinic visits generated by the clinical suspicion of a potential AARD. None of the 181 patients included with a positive monospecific anti-DFS70 antibody result developed SARD during the follow-up period of 10 years. The reduction in number of tests after ANA and anti-DFS70 positive results was significant for anti-ENA (230 vs. 114 tests; p\0.001) and anti-dsDNA antibodies (448 vs. 114 tests; p\0.001). In addition, the outpatient clinic visits decreased by 70 % (p\0.001). In total, the adoption of the new algorithm including anti-DFS70 antibody testing resulted in a cost saving of 60869.53 € for this pilot study. In conclusion, the use of anti-DFS70 antibodies was clearly cost-efficient in our setting.
Fuente: Auto-Immunity Highlights, 2016, 7(1),10
Editorial: Springer
Año de publicación: 2016
Nº de páginas: 6
Tipo de publicación: Artículo de Revista
DOI: 10.1007/s13317-016-0082-1
ISSN: 2038-0305,2038-3274
Consultar en UCrea Leer publicación
GUNDÍN, SIMÓN
IRURE VENTURA, JUAN
ASENSIO, ESTHER
RAMOS, DAVID
MAHLER, MICHAEL
VICTOR MANUEL MARTINEZ TABOADA
MARCOS LOPEZ HOYOS
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