Bulbar involvement and cognitive features in amyotrophic lateral sclerosis: a retrospective study on 347 patients.

Autor: Aiello, Edoardo Nicolò, Solca, Federica, Torre, Silvia, Patisso, Valerio, De Lorenzo, Alberto, Treddenti, Mauro, Colombo, Eleonora, Maranzano, Alessio, Morelli, Claudia, Doretti, Alberto, Verde, Federico, Silani, Vincenzo, Ticozzi, Nicola, Poletti, Barbara
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Zdroj: Frontiers in Aging Neuroscience; 2023, p1-8, 8p
Abstrakt: Background: This study aimed at clarifying the role of bulbar involvement (BI) as a risk factor for cognitive impairment (CI) in non-demented amyotrophic lateral sclerosis (ALS) patients. Methods: Data on N = 347 patients were retrospectively collected. Cognition was assessed via the Edinburgh Cognitive and Behavioral ALS Screen (ECAS). On the basis of clinical records and ALS Functional Rating Scale-Revised (ALSFRSR) scores, BI was characterized as follows: (1) BI at onset--from medical history; (2) BI at testing (an ALSFRS-R-Bulbar score ≤11); (3) dysarthria (a score ≤3 on item 1 of the ALSFRS-R); (4) severity of BI (the total score on the ALSFRS-RBulbar); and (5) progression rate of BI (computed as 12-ALSFRS-R-Bulbar/disease duration in months). Logistic regressions were run to predict a below-vs. abovecutoff performance on each ECAS measure based on BI-related features while accounting for sex, disease duration, severity and progression rate of respiratory and spinal involvement and ECAS response modality. Results: No predictors yielded significance either on the ECAS-Total and - ALS-non-specific or on ECAS-Language/-Fluency or -Visuospatial subscales. BI at testing predicted a higher probability of an abnormal performance on the ECAS-ALS-specific (p = 0.035) and ECAS-Executive Functioning (p = 0.018). Lower ALSFRS-R-Bulbar scores were associated with a defective performance on the ECAS-Memory (p = 0.025). No other BI-related features affected other ECAS performances. Discussion: In ALS, the occurrence of BI itself, while neither its specific features nor its presence at onset, might selectively represent a risk factor for executive impairment, whilst its severity might be associated with memory deficits. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index