en
Scientific article
English

Advancing research diagnostic criteria for Alzheimer's disease: the IWG-2 criteria

Published inLancet neurology, vol. 13, no. 6, p. 614-629
Publication date2014
Abstract

In the past 8 years, both the International Working Group (IWG) and the US National Institute on Aging-Alzheimer's Association have contributed criteria for the diagnosis of Alzheimer's disease (AD) that better define clinical phenotypes and integrate biomarkers into the diagnostic process, covering the full staging of the disease. This Position Paper considers the strengths and limitations of the IWG research diagnostic criteria and proposes advances to improve the diagnostic framework. On the basis of these refinements, the diagnosis of AD can be simplified, requiring the presence of an appropriate clinical AD phenotype (typical or atypical) and a pathophysiological biomarker consistent with the presence of Alzheimer's pathology. We propose that downstream topographical biomarkers of the disease, such as volumetric MRI and fluorodeoxyglucose PET, might better serve in the measurement and monitoring of the course of disease. This paper also elaborates on the specific diagnostic criteria for atypical forms of AD, for mixed AD, and for the preclinical states of AD.

Keywords
  • Alzheimer Disease/diagnosis/genetics/physiopathology
  • Biological Markers/analysis/chemistry
  • Humans
  • International Cooperation
  • Phenotype
  • Practice Guidelines as Topic/standards
  • Societies, Medical/standards
Citation (ISO format)
DUBOIS, Bruno et al. Advancing research diagnostic criteria for Alzheimer’s disease: the IWG-2 criteria. In: Lancet neurology, 2014, vol. 13, n° 6, p. 614–629. doi: 10.1016/S1474-4422(14)70090-0
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Article (Accepted version)
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ISSN of the journal1474-4422
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