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Although the use of cerebrospinal fluid (CSF) amyloid β1-42 (Aβ42), tau (T-tau), and phosphorylated tau (p-tau181) gives added diagnostic and prognostic values, the diffusion is still limited in clinical practice and only a restricted number of patients receive an integrated clinico-biological diagnosis. By a survey, we aimed to do a "selfie" of the use and diffusion of CSF biomarkers of dementia in Italy, the standardization of pre-analytical procedures, the harmonization of ranges, and the participation to Quality Control programs. An online questionnaire was sent to the members of SIBioC and SINdem-ITALPLANED and to main neurological clinics all over Italy. In Italy, 25 laboratories provide biomarkers analysis in addition to a network of 15 neighboring hospitals. In sum, 40 neurological centers require CSF analyses. 7/20 regions (35%) lack CSF laboratories. Standardization of pre-analytical procedures is present in 62.02% of the laboratories; only 56.00% of the laboratories participate in International Quality Control. There is no harmonization of cut-offs. In Italy, the use of CSF biomarkers is still limited in clinical practice. Standardization and harmonization of normal ranges are needed. To optimize and expand the use of CSF biomarkers, a cost-benefit analysis should be promoted by scientific societies and national health services.

Original publication

DOI

10.3233/JAD-160975

Type

Journal article

Journal

J Alzheimers Dis

Publication Date

2017

Volume

55

Pages

1659 - 1666

Keywords

Alzheimer’s disease diagnosis, cerebrospinal fluid, neurodegenerative biomarkers, survey, Alzheimer Disease, Amyloid beta-Peptides, Cost-Benefit Analysis, Female, Humans, Italy, Male, Peptide Fragments, Phosphorylation, Surveys and Questionnaires, alpha-Synuclein, tau Proteins