@article {1695, title = {EULAR/PRINTO/PRES criteria for Henoch-Sch{\"o}nlein purpura, childhood polyarteritis nodosa, childhood Wegener granulomatosis and childhood Takayasu arteritis: Ankara 2008. Part I: Overall methodology and clinical characterisation.}, journal = {Ann Rheum Dis}, volume = {69}, year = {2010}, month = {2010 May}, pages = {790-7}, abstract = {
OBJECTIVES: To report methodology and overall clinical, laboratory and radiographic characteristics for Henoch-Sch{\"o}nlein purpura (HSP), childhood polyarteritis nodosa (c-PAN), c-Wegener granulomatosis (c-WG) and c-Takayasu arteritis (c-TA) classification criteria.
METHODS: The preliminary Vienna 2005 consensus conference, which proposed preliminary criteria for paediatric vasculitides, was followed by a EULAR/PRINTO/PRES - supported validation project divided into three main steps. Step 1: retrospective/prospective web-data collection for HSP, c-PAN, c-WG and c-TA, with age at diagnosis RESULTS: A total of 1183/1398 (85\%) samples collected were available for analysis: 827 HSP, 150 c-PAN, 60 c-WG, 87 c-TA and 59 c-other. Prevalence, signs/symptoms, laboratory, biopsy and imaging reports were consistent with the clinical picture of the four c-vasculitides. A representative subgroup of 280 patients was blinded to the treating physician diagnosis and classified by a consensus panel, with a kappa-agreement of 0.96 for HSP (95\% CI 0.84 to 1), 0.88 for c-WG (95\% CI 0.76 to 0.99), 0.84 for c-TA (95\% CI 0.73 to 0.96) and 0.73 for c-PAN (95\% CI 0.62 to 0.84), with an overall kappa of 0.79 (95\% CI 0.73 to 0.84). CONCLUSION: EULAR/PRINTO/PRES propose validated classification criteria for HSP, c-PAN, c-WG and c-TA, with substantial/almost perfect agreement with the final consensus classification or original treating physician diagnosis.