Evidence map›Paper›PMID 32676757›Full record

ArticleNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2021

Increased rapid eye movement density in Chinese patients with Parkinson's disease and RBD.

Jun Zhu, Liyu Lu, Min Zhong, Xu Jiang, Zhuang Wu, Jingde Dong, Yang Pan, Li Zhang

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Article in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Jun ZhuDepartment of Geriatric Neurology, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
Liyu LuDepartment of Geriatric Neurology, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
Min ZhongDepartment of Geriatric Neurology, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
Xu JiangDepartment of Geriatric Neurology, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
Zhuang WuDepartment of Geriatric Neurology, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
Jingde DongDepartment of Geriatric Neurology, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
Yang PanDepartment of Geriatric Neurology, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China.
Li ZhangDepartment of Geriatric Neurology, Nanjing Brain Hospital Affiliated to Nanjing Medical University, 264 Guangzhou Road, Nanjing, 210029, Jiangsu, People's Republic of China. njmuzhangli@sina.com.ORCID http://orcid.org/0000-0001-9094-5881

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveImpaired rapid eye movement sleep is common among patients with Parkinson's disease (PD). However, information on rapid eye movement density (REM) among PD patients is currently lacking. The current study sought to characterize REM density in PD patients and to examine the associations between REM density sleep parameters and clinical manifestations. PARTICIPANTS AND

methodsWe retrospectively recruited 172 PD patients. All participants were assessed with a two-night polysomnography, and REM density was calculated. Clinical assessments were completed in PD patients before polysomnography.

resultsRapid eye movement sleep behavior disorder (RBD) was observed in 93 patients (54.1%). The disease duration, UPDRS part III score, Hoehn and Yahr (H-Y) stage, and HAMA, HAMD, PDQ-39 scores, and REM density in the Parkinson's disease patients with rapid eye movement sleep behavior disorder (RBD) were significantly higher than in the patients without RBD (P < 0.05). However, NREM sleep stage 3 time (N3 time) and percentage of N3 time of total sleep time (N3%) were significantly lower in the RBD patients than in the patients without RBD (P < 0.05). The forward binary logistic regression model showed that REM density, UPDRS-III score, and N3 sleep time were associated with RBD in the PD patients.

conclusionsOur results confirm the high prevalence of RBD in patients with PD. Increased REM density was the main risk factor of RBD.

Indexed as

Parkinson DiseaseREM Sleep Behavior DisorderChinaHumansRetrospective StudiesSleep, REMParkinson’s diseasePolysomnographyRBDREM density

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.