A Reliable and Rapid Language Tool for the Diagnosis, Classification, and Follow-Up of Primary Progressive Aphasia Variants - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Journal Articles Frontiers in Neurology Year : 2021

A Reliable and Rapid Language Tool for the Diagnosis, Classification, and Follow-Up of Primary Progressive Aphasia Variants

Abstract

Background: Primary progressive aphasias (PPA) have been investigated by clinical, therapeutic, and fundamental research but examiner-consistent language tests for reliable reproducible diagnosis and follow-up are lacking. Methods: We developed and evaluated a rapid language test for PPA ("PARIS") assessing its inter-examiner consistency, its power to detect and classify PPA, and its capacity to identify language decline after a follow-up of 9 months. To explore the reliability and specificity/sensitivity of the test it was applied to PPA patients (N = 36), typical amnesic Alzheimer's disease (AD) patients (N = 24) and healthy controls (N = 35), while comparing it to two rapid examiner-consistent language tests used in stroke-induced aphasia ("LAST", "ART"). Results: The application duration of the "PARIS" was ∼10 min and its inter-rater consistency was of 88%. The three tests distinguished healthy controls from AD and PPA patients but only the "PARIS" reliably separated PPA from AD and allowed for classifying the two most frequent PPA variants: semantic and logopenic PPA. Compared to the "LAST" and "ART," the "PARIS" also had the highest sensitivity for detecting language decline. Conclusions: The "PARIS" is an efficient, rapid, and highly examiner-consistent language test for the diagnosis, classification, and follow-up of frequent PPA variants. It might also be a valuable tool for providing end-points in future therapeutic trials on PPA and other neurodegenerative diseases affecting language processing.
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Dates and versions

hal-03096896 , version 1 (05-01-2021)

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Stéphane Epelbaum, Yasmina Michel Saade, Constance Flamand Roze, Emmanuel Roze, Sophie Ferrieux, et al.. A Reliable and Rapid Language Tool for the Diagnosis, Classification, and Follow-Up of Primary Progressive Aphasia Variants. Frontiers in Neurology, 2021, 11, ⟨10.3389/fneur.2020.571657⟩. ⟨hal-03096896⟩
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