EpistemisACR 1990 Criteria for the Classification of Giant Cell Arteritis
Select the variables to determine if the patient meets the classification criteria (minimum threshold for classification: ≥ 3 of 5 criteria):
Required inputs
| Variable | Example value |
|---|---|
| Age of Onset ≥ 50 years: Symptoms or clinical manifestations that begin at 50 years of age or older. | — |
| New Onset Headache: Headache with new characteristics, located preferably in the temporal region, of severe intensity. | — |
| Temporal Artery Alteration: Local sensitivity to palpation of the temporal artery or decreased pulse, not related to cervical arteriosclerosis. | — |
| Elevated Acute Phase Reactants: ESR ≥ 50 mm/hour measured by the Westergren method. | — |
| Positive Temporal Artery Biopsy: Histological sample of the artery that reveals necrotizing vasculitis with predominance of mononuclear cell infiltration or granulomatous inflammation with multinucleated giant cells. | — |
Run the calculation in the app
This page explains the score but does not run it. In Epistemis, the calculator validates units, flags values outside physiological ranges, and provides the interpretation that a number alone cannot convey.
Epistemis is educational review material. It is not a medical device, does not diagnose or prescribe treatment, and does not replace formal medical training, current clinical guidelines, or professional clinical judgment.
- Specialty
- Rheumatology
- Area
- Internal Medicine
- Variables
- 5