Accuracy of the clinical diagnosis of dementia with Lewy bodies (DLB) among the Italian Dementia Centers : a study by the Italian DLB study group (DLB-SINdem)

© 2022. The Author(s)..

INTRODUCTION: Dementia with Lewy bodies (DLB) may represent a diagnostic challenge, since its clinical picture overlaps with other dementia. Two toolkits have been developed to aid the clinician to diagnose DLB: the Lewy Body Composite Risk Score (LBCRS) and the Assessment Toolkit for DLB (AT-DLB). We aim to evaluate the reliability of these two questionnaires, and their ability to enhance the interpretation of the international consensus diagnostic criteria.

METHODS: LBCRS and AT-DLB were distributed to 135 Italian Neurological Centers for Cognitive Decline and Dementia (CDCDs), with the indication to administer them to all patients with dementia referred within the subsequent 3 months. We asked to subsequently apply consensus criteria for DLB diagnosis, to validate the diagnostic accuracy of the two toolkits.

RESULTS: A total of 23 Centers joined the study; 1854 patients were enrolled. We found a prevalence of possible or probable DLB of 13% each (26% total), according to the consensus criteria. LBCRS toolkit showed good reliability, with a Cronbach alpha of 0.77, stable even after removing variables from the construct. AT-DLB toolkit Cronbach alpha was 0.52 and, after the subtraction of the "cognitive fluctuation" criterion, was only 0.31. Accuracy, sensitivity, and specificity were higher for LBCRS vs. AT-DLB. However, when simultaneously considered in the logistic models, AT-DLB showed a better performance (p < 0.001). Overall, the concordance between LBCRS positive and AT-DLB possible/probable was of 78.02% CONCLUSIONS: In a clinical setting, the LBCRS and AT-DLB questionnaires have good accuracy for DLB diagnosis.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:43

Enthalten in:

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology - 43(2022), 7 vom: 04. Juli, Seite 4221-4229

Sprache:

Englisch

Beteiligte Personen:

Russo, Mirella [VerfasserIn]
Carrarini, Claudia [VerfasserIn]
Di Iorio, Angelo [VerfasserIn]
Pellegrino, Raffaello [VerfasserIn]
Bruni, Amalia Cecilia [VerfasserIn]
Caratozzolo, Salvatore [VerfasserIn]
Chiari, Annalisa [VerfasserIn]
Pretta, Stefano [VerfasserIn]
Marra, Camillo [VerfasserIn]
Cotelli, Maria Sofia [VerfasserIn]
Arighi, Andrea [VerfasserIn]
Fumagalli, Giorgio G [VerfasserIn]
Cataruzza, Tatiana [VerfasserIn]
Caso, Francesca [VerfasserIn]
Paci, Cristina [VerfasserIn]
Rosso, Mara [VerfasserIn]
Amici, Serena [VerfasserIn]
Giannandrea, David [VerfasserIn]
Pilotto, Andrea [VerfasserIn]
Luzzi, Simona [VerfasserIn]
Castellano, Annalisa [VerfasserIn]
D'antonio, Fabrizia [VerfasserIn]
Luca, Antonina [VerfasserIn]
Gelosa, Giorgio [VerfasserIn]
Piccoli, Tommaso [VerfasserIn]
Mauri, Marco [VerfasserIn]
Agosta, Federica [VerfasserIn]
Babiloni, Claudio [VerfasserIn]
Borroni, Barbara [VerfasserIn]
Bozzali, Marco [VerfasserIn]
Filippi, Massimo [VerfasserIn]
Galimberti, Daniela [VerfasserIn]
Monastero, Roberto [VerfasserIn]
Muscio, Cristina [VerfasserIn]
Parnetti, Lucilla [VerfasserIn]
Perani, Daniela [VerfasserIn]
Serra, Laura [VerfasserIn]
Silani, Vincenzo [VerfasserIn]
Tiraboschi, Pietro [VerfasserIn]
Cagnin, Annachiara [VerfasserIn]
Padovani, Alessandro [VerfasserIn]
Bonanni, Laura [VerfasserIn]
Italian Dementia with Lewy bodies Study Group (DLB-SINdem) [VerfasserIn]
Roberta, Baschi [Sonstige Person]
Federica, Fragiacomo [Sonstige Person]
Sebastiano, Galantucci [Sonstige Person]
Caterina, Gaspari [Sonstige Person]
Gianmarco, Gazzola [Sonstige Person]
Giuseppe, Magnani [Sonstige Person]
Giulia, Mazzon [Sonstige Person]
Stefano, Mozzetta [Sonstige Person]
Carmela, Ravanelli [Sonstige Person]
Marco, Ruggiero [Sonstige Person]
Pierpaolo, Salute [Sonstige Person]
Giuseppe, Scamarcia Pietro [Sonstige Person]
Marinella, Turla [Sonstige Person]
Federico, Verde [Sonstige Person]
Antonietta, Volontè Maria [Sonstige Person]

Links:

Volltext

Themen:

Clinical diagnosis
Cognitive impairment
Consensus criteria
Dementia
Dementia with Lewy bodies
Diagnostic accuracy
Diagnostic toolkits
Journal Article

Anmerkungen:

Date Completed 23.06.2022

Date Revised 19.07.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s10072-022-05987-z

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM337759383