Classification criteria for autoinflammatory recurrent fevers

Marco Gattorno, Michael Hofer, Silvia Federici, Federica Vanoni, Francesca Bovis, Ivona Aksentijevich, Jordi Anton, Juan Ignacio Arostegui, Karyl Barron, Eldad Ben-Cherit, Paul A Brogan, Luca Cantarini, Isabella Ceccherini, Fabrizio De Benedetti, Fatma Dedeoglu, Erkan Demirkaya, Joost Frenkel, Raphaela Goldbach-Mansky, Ahmet Gul, Veronique HentgenHal Hoffman, Tilmann Kallinich, Isabelle Kone-Paut, Jasmin Kuemmerle-Deschner, Helen J Lachmann, Ronald M Laxer, Avi Livneh, Laura Obici, Seza Ozen, Dorota Rowczenio, Ricardo Russo, Yael Shinar, Anna Simon, Nataša Toplak, Isabelle Touitou, Yosef Uziel, Marielle van Gijn, Dirk Foell, Claudia Garassino, Dan Kastner, Alberto Martini, Maria Pia Sormani, Nicolino Ruperto

Research output: Contribution to journalArticle

Abstract

BACKGROUND: Different diagnostic and classification criteria are available for hereditary recurrent fevers (HRF)-familial Mediterranean fever (FMF), tumour necrosis factor receptor-associated periodic fever syndrome (TRAPS), mevalonate kinase deficiency (MKD) and cryopyrin-associated periodic syndromes (CAPS)-and for the non-hereditary, periodic fever, aphthosis, pharyngitis and adenitis (PFAPA). We aimed to develop and validate new evidence-based classification criteria for HRF/PFAPA.

METHODS: Step 1: selection of clinical, laboratory and genetic candidate variables; step 2: classification of 360 random patients from the Eurofever Registry by a panel of 25 clinicians and 8 geneticists blinded to patients' diagnosis (consensus ≥80%); step 3: statistical analysis for the selection of the best candidate classification criteria; step 4: nominal group technique consensus conference with 33 panellists for the discussion and selection of the final classification criteria; step 5: cross-sectional validation of the novel criteria.

RESULTS: The panellists achieved consensus to classify 281 of 360 (78%) patients (32 CAPS, 36 FMF, 56 MKD, 37 PFAPA, 39 TRAPS, 81 undefined recurrent fever). Consensus was reached for two sets of criteria for each HRF, one including genetic and clinical variables, the other with clinical variables only, plus new criteria for PFAPA. The four HRF criteria demonstrated sensitivity of 0.94-1 and specificity of 0.95-1; for PFAPA, criteria sensitivity and specificity were 0.97 and 0.93, respectively. Validation of these criteria in an independent data set of 1018 patients shows a high accuracy (from 0.81 to 0.98).

CONCLUSION: Eurofever proposes a novel set of validated classification criteria for HRF and PFAPA with high sensitivity and specificity.

Original languageEnglish
JournalAnnals of the Rheumatic Diseases
DOIs
Publication statusE-pub ahead of print - Apr 24 2019

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    Gattorno, M., Hofer, M., Federici, S., Vanoni, F., Bovis, F., Aksentijevich, I., Anton, J., Arostegui, J. I., Barron, K., Ben-Cherit, E., Brogan, P. A., Cantarini, L., Ceccherini, I., De Benedetti, F., Dedeoglu, F., Demirkaya, E., Frenkel, J., Goldbach-Mansky, R., Gul, A., ... Ruperto, N. (2019). Classification criteria for autoinflammatory recurrent fevers. Annals of the Rheumatic Diseases. https://doi.org/10.1136/annrheumdis-2019-215048