Erschienen in:
14.08.2023 | Original Communication
Cognitive impairment and dementia in young onset Parkinson’s disease
verfasst von:
Diego Santos-García, Teresa de Deus Fonticoba, Carlos Cores Bartolomé, María J. Feal Painceiras, Iago García Díaz, María Cristina Íñiguez Alvarado, Jose Manuel Paz, Silvia Jesús, Marina Cosgaya, Juan García Caldentey, Nuria Caballol, Ines Legarda, Jorge Hernández Vara, Iria Cabo, Lydia López Manzanares, Isabel González Aramburu, Maria A. Ávila Rivera, Víctor Gómez Mayordomo, Víctor Nogueira, Julio Dotor García-Soto, Carmen Borrué, Berta Solano Vila, María Álvarez Sauco, Lydia Vela, Sonia Escalante, Esther Cubo, Zebenzui Mendoza, Juan C. Martínez Castrillo, Pilar Sánchez Alonso, Maria G. Alonso Losada, Nuria López Ariztegui, Itziar Gastón, Jaime Kulisevsky, Manuel Seijo, Caridad Valero, Ruben Alonso Redondo, Maria Teresa Buongiorno, Carlos Ordás, Manuel Menéndez-González, Darrian McAfee, Pablo Martinez-Martin, Pablo Mir, COPPADIS Study Group
Erschienen in:
Journal of Neurology
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Ausgabe 12/2023
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Abstract
Background and objective
Patients with young-onset Parkinson’s disease (YOPD) have a slower progression. Our aim was to analyze the change in cognitive function in YOPD compared to patients with a later onset and controls.
Patients and methods
Patients with Parkinson’s disease (PD) and controls from the COPPADIS cohort were included. Cognitive function was assessed with the Parkinson’s Disease Cognitive Rating Scale (PD-CRS) at baseline (V0), 2-year ± 1 month (V2y), and 4-year ± 3 months follow-up (V4y). Regarding age from symptoms onset, patients were classified as YOPD (< 50 years) or non-YOPD (≥ 50). A score in the PD-CRS < 81 was defined as cognitive impairment (CI): ≤ 64 dementia; 65–80 mild cognitive impairment (MCI).
Results
One-hundred and twenty-four YOPD (50.7 ± 7.9 years; 66.1% males), 234 non-YOPD (67.8 ± 7.8 years; 59.3% males) patients, and 205 controls (61 ± 8.3 years; 49.5% males) were included. The score on the PD-CRS and its subscore domains was higher at all visits in YOPD compared to non-YOPD patients and to controls (p < 0.0001 in all analysis), but no differences were detected between YOPD patients and controls. Only non-YOPD patients had significant impairment in their cognitive function from V0 to V4y (p < 0.0001). At V4y, the frequency of dementia and MCI was 5% and 10% in YOPD compared to 25.2% and 22.3% in non-YOPD patients (p < 0.0001). A lower score on the Parkinson’s Disease Sleep Scale at baseline was a predictor of CI at V4y in YOPD patients (Adjusted R2 = 0.61; OR = 0.965; p = 0.029).
Conclusion
Cognitive dysfunction progressed more slowly in YOPD than in non-YOPD patients.