A case of false positive Troponin I in a patient affected by cryoglobulinemic vasculitis

Submitted: 8 November 2016
Accepted: 27 April 2017
Published: 22 May 2017
Abstract Views: 1104
PDF: 643
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Troponin I (TnI) false positive results have been reported in patients affected by immune disorders. We report the case of a 74-year-old woman affected by cryoglobulinemic vasculitis, admitted to the Emergency Room because of a lipotimic episode. A marked elevation of TnI plasma concentration was confirmed in multiple determinations, despite the absence of symptoms or electrocardiogram findings suggesting myocardial infarction. TnI plasma concentration was reported normal after re-testing with a different commercial kit. A false TnI positivity should be considered in patients with immune disorders, especially if seropositive for rheumatoid factor, when the clinical context does not suggest myocardial infarction.

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Bellan, M., Pirisi, M., Bellomo, G., & Sainaghi, P. (2017). A case of false positive Troponin I in a patient affected by cryoglobulinemic vasculitis. Reumatismo, 69(1), 40–42. https://doi.org/10.4081/reumatismo.2017.941