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Criteria for Causality: Bradford Hill Criteria - II01:28

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Classification criteria for autoinflammatory recurrent fevers.

Marco Gattorno1, Michael Hofer2,3, Silvia Federici4

  • 1UOSD Centro Malattie Autoinfiammatorie e Immunodeficienze, IRCCS Istituto Giannina Gaslini, Genoa, Italy marcogattorno@gaslini.org.

Annals of the Rheumatic Diseases
|April 26, 2019
PubMed
Summary
This summary is machine-generated.

New classification criteria for hereditary recurrent fevers (HRF) and periodic fever, aphthosis, pharyngitis, and adenitis (PFAPA) have been developed and validated. These evidence-based criteria demonstrate high sensitivity and specificity for improved diagnosis of these autoinflammatory conditions.

Keywords:
CAPSPFAPATRAPSclassification criteriainherited periodic feversmevalonate kinase deficiency

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Area of Science:

  • Rheumatology
  • Genetics
  • Immunology

Background:

  • Hereditary recurrent fevers (HRF) encompass conditions like Familial Mediterranean Fever (FMF), TRAPS, MKD, and CAPS.
  • Periodic fever, aphthosis, pharyngitis, and adenitis (PFAPA) is a non-hereditary periodic fever syndrome.
  • Current diagnostic criteria for HRF and PFAPA vary, necessitating updated, evidence-based guidelines.

Purpose of the Study:

  • To develop and validate new, evidence-based classification criteria for hereditary recurrent fevers (HRF) and PFAPA.
  • To improve the accuracy and consistency of diagnosing these autoinflammatory disorders.

Main Methods:

  • A multi-step process involving variable selection, patient classification by expert panels, statistical analysis, and consensus conferences.
  • Development of two sets of criteria for HRF (genetic/clinical and clinical-only) and new criteria for PFAPA.
  • Validation of the novel criteria using independent patient datasets.

Main Results:

  • Consensus was achieved for classifying a majority of patients within the Eurofever Registry.
  • The developed criteria for HRF demonstrated high sensitivity (0.94-1) and specificity (0.95-1).
  • PFAPA criteria showed high sensitivity (0.97) and specificity (0.93), with overall high accuracy in validation datasets (0.81-0.98).

Conclusions:

  • The Eurofever initiative proposes novel, validated classification criteria for HRF and PFAPA.
  • These new criteria offer high sensitivity and specificity, aiding in the accurate diagnosis of these conditions.
  • The validated criteria are expected to enhance diagnostic consistency and clinical management of patients with periodic fever syndromes.