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Plasma Viscosity in Giant Cell Arteritis.
Finke C, Schroeter J, Kalus U, Ploner CJ. Plasma viscosity in giant cell arteritis. Eur Neurol. 2011;66(3):159-64.



Diagnosis of giant cell arteritis (GCA) is based on criteria of the American College of Rheumatology. However, not all GCA patients meet these criteria and treatment may be delayed in individual patients, leading to an increased risk of complications.


In an observational study, we investigated acute phase response markers in GCA and non-GCA patients matched for erythrocyte sedimentation rate and CRP levels.


Plasma viscosity (PV) was significantly elevated in all GCA patients, but normal in non-GCA patients.


Our data suggest that PV may reflect a more specific component of the acute inflammatory response in patients with GCA. Analysis of PV may significantly contribute to a reliable diagnosis early in the course of the disease, particularly in patients with suspected GCA that do not meet current diagnostic criteria.

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