Journal of Movement Disorders

Original Article

Correlation of Sleep Disturbance and Cognitive Impairment in Patients with Parkinson’s Disease: Eun Ja Kim, Joon Hyun Baek, Dong Jin Shin, Hyeon-Mi Park, Yeong-Bae Lee, Kee-Hyung Park, Dong Hoon Shin, Young Noh, Young Hee Sung; J Mov Disord. 2014;7(1):13-18. Published online April 30, 2014; DOI: https://doi.org/10.14802/jmd.14003

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Objective: Cognitive impairment is a common nonmotor symptom of Parkinson’s disease (PD) and is associated with high mortality, caregiver distress, and nursing home placement. The risk factors for cognitive decline in PD patients include advanced age, longer disease duration, rapid eye movement sleep behavior disorder, hallucinations, excessive daytime sleepiness, and nontremor symptoms including bradykinesia, rigidity, postural instability, and gait disturbance. We conducted a cross-sectional study to determine which types of sleep disturbances are related to cognitive function in PD patients.
Methods: A total of 71 PD patients (29 males, mean age 66.46 ± 8.87 years) were recruited. All patients underwent the Mini- Mental State Examination (MMSE) and the Korean Version of the Montreal Cognitive Assessments (MoCA-K) to assess global cognitive function. Sleep disorders were evaluated with the Stanford Sleepiness Scale, Epworth Sleepiness Scale, Insomnia Severity Index (ISI), Pittsburg Sleep Quality Index, and Parkinson’s Disease Sleep Scale in Korea (PDSS).
Results: The ISI was correlated with the MMSE, and total PDSS scores were correlated with the MMSE and the MoCA-K. In each item of the PDSS, nocturnal restlessness, vivid dreams, hallucinations, and nocturnal motor symptoms were positively correlated with the MMSE, and nocturnal restlessness and vivid dreams were significantly related to the MoCA-K. Vivid dreams and nocturnal restlessness are considered the most powerful correlation factors with global cognitive function, because they commonly had significant correlation to cognition assessed with both the MMSE and the MoCA-K.

Conclusions: We found a correlation between global cognitive function and sleep disturbances, including vivid dreams and nocturnal restlessness, in PD patients.

Citations

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Case Reports

Novel Compound Heterozygous Mutations in the Pantothenate Kinase 2 Gene in a Korean Patient with Atypical Pantothenate Kinase Associated Neurodegeneration: Sung-Hyouk Kim, Young-Hee Sung, Kee-Hyung Park, Yeung-Bae Lee, Hyeon-Mi Park, Dong Jin Shin, Gu-Hwan Kim; J Mov Disord. 2009;2(1):45-47.; DOI: https://doi.org/10.14802/jmd.09012

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Abstract PDF

Pantothenate kinase-associated neurodegeneration (PKAN) is an autosomal recessive disorder that is characterized by mutations in the pantothenate kinase 2 gene (PANK2) and typical magnetic resonance imaging findings. We report a case of atypical PKAN presenting with generalized dystonia. Our patient had compound heterozygous mutations in the PANK2 gene, including mutation in exon 3 (p.D268G) and exon 4 (p.R330P). To our knowledge, this patient is the first to have the p.R330P mutation and the second to have the p.D268G mutation.

Citations

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Atypical pantothenate kinase-associated neurodegeneration: Clinical description of two brothers and a review of the literature
S. Mahoui, A. Benhaddadi, W. Ameur El Khedoud, M. Abada Bendib, M. Chaouch
Revue Neurologique.2017; 173(10): 658. CrossRef
Clinical Heterogeneity of Atypical Pantothenate Kinase-Associated Neurodegeneration in Koreans
Jae-Hyeok Lee, Jongkyu Park, Ho-Sung Ryu, Hyeyoung Park, Young Eun Kim, Jin Yong Hong, Sang Ook Nam, Young-Hee Sung, Seung-Hwan Lee, Jee-Young Lee, Myung Jun Lee, Tae-Hyoung Kim, Chul Hyoung Lyoo, Sun Ju Chung, Seong Beom Koh, Phil Hyu Lee, Jin Whan Cho,
Journal of Movement Disorders.2016; 9(1): 20. CrossRef

A Case of Chorea as the Initial Manifestation of SLE Triggered by Estrogen: Su-Hyun Kim, Dong-Jin Shin, Hyeon-Mi Park, Yeong-Bae Lee, Kee-Hyung Park, Young-Hee Sung; J Mov Disord. 2008;1(2):86-89.; DOI: https://doi.org/10.14802/jmd.08016

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Abstract PDF: Neurological complications of systemic lupus erythematosus (SLE) are relatively common, but chorea as the initial manifestation of SLE unmasked by exogenous estrogen is very rare. A-46-year old right handed woman presented with generalized chorea since 2 weeks ago. Her medical records revealed that the chorea had appeared within one month after estrogen medication. The laboratory test revealed positive antinuclear antibody (ANA), positive anti-dsDNA and positive anti-histone antibody. After discontinuation of estrogen, her choreic movement was not diminished. We report a case of newly diagnosed SLE attribute to chorea which triggered by estrogen.

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