Association between sleep disorders and cognitive dysfunctions in non-demented patients with advanced Parkinson's disease.
J Neurol
; 269(3): 1538-1545, 2022 Mar.
Article
en En
| MEDLINE
| ID: mdl-34328543
ABSTRACT
BACKGROUND:
Parkinson's disease (PD) is increasingly recognized as a multidimensional disorder, characterized by several non-motor symptoms, including disturbances of sleep and cognition. Current studies on the relationship between sleep problems and neuropsychological functions, mainly conducted in early to moderate PD patients, outline mixed results. In this study, we analysed the relationship between subjectively reported sleep alterations and cognitive functions in a large cohort of 181 advanced PD patients.METHODS:
All consecutive, non-demented, advanced PD patients candidates for device-aided therapy completed two self-administered sleep questionnaires-the Parkinson's Disease Sleep Scale (PDSS-2) and the Epworth Sleepiness Scale (ESS)-and underwent a comprehensive battery of neuropsychological tests encompassing five cognitive domains (reasoning, memory, attention, frontal executive functions, and language).RESULTS:
Patients showed mild to moderate sleep problems (PDSS-2 score 23.4 ± 1.2) and mild daytime sleepiness (ESS 8.6 ± 5.1). A significant correlation was found between PDSS-2 total score and non-verbal reasoning, as well as attentive skills, executive functions, and language abilities. No correlations were found between sleep measures and memory tests scores. Patients with clinically relevant sleep disturbances performed worse on attention, executive functions, and language. No significant correlations were found between daytime sleepiness and any neuropsychological test.CONCLUSIONS:
In advanced PD patients, sleep disturbances selectively correlate with specific neuropsychological functions and not with short-term memory and consolidation. Even if confirmations by means of longitudinal studies are needed, our observations suggest the importance of considering treatment of sleep disturbances to minimize their potential impact on cognition.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Enfermedad de Parkinson
/
Trastornos del Sueño-Vigilia
/
Disfunción Cognitiva
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Límite:
Humans
Idioma:
En
Revista:
J Neurol
Año:
2022
Tipo del documento:
Article
País de afiliación:
Italia