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Medicina (Buenos Aires)

versión impresa ISSN 0025-7680versión On-line ISSN 1669-9106


AGUIRRE, María A et al. Amiloidosis AA: Estudio de cohorte en una institución. Medicina (B. Aires) [online]. 2019, vol.79, n.4, pp.276-279. ISSN 0025-7680.

There is limited epidemiological information on AA amyloidosis in Argentina, so the objective of this study was to describe the epidemiological characteristics of this disease in a tertiary hospital in our country. We designed a prospective clinical cohort of all consecutive patients with AA amyloidosis confirmed by immunohistochemistry in tissue from the Institutional Registry of Amyloidosis of the Hospital Italiano de Buenos Aires, in the period 04/01/2012- 12/31/2017. Of the 121 patients in the registry, 18 were included with AA for the analysis. Of the total included, 50% (9) were female, with a median age of 53.5 (interquartile range, RII 46-61) years. The 88.9% (16) of cohort presented renal compromise, all had proteinuria, and 6 required dialysis. Six had amyloid infiltration of the digestive system. The latency between the onset of the underlying disease and the diagnosis of AA had a median of 27 (RII 8-35) years. The underlying disease was of inflammatory origin in 6 cases. In 50% (9) of the patients the cause of AA amyloidosis was unknown. In the remaining 50%, these causes resemble those observed in developed countries. Furthermore, our results highlight the importance of their differential diagnosis to identify the most appropriate treatment or follow-up according to the situation presented by each patient.

Palabras clave : Amyloidosis; Epidemiology; Serum amyloid A protein.

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