Knowledge Structure and Emerging Trends of Mild Cognitive Impairment with Dyssomnias in Recent 20 Years: A Bibliometric Analysis via CiteSpace and VOSviewer

Table 1

The top 10 most cited articles.

Rank	First author	Title	Journal	Cited	Highlight	References
1	Ronald B Postuma	Risk and Predictors of Dementia and Parkinsonism in Idiopathic REM Sleep Behaviour Disorder: A Multicentre Study	Brain	402	The study has confirmed a high risk of phenoconversion to overt neurodegenerative disease in individuals with rapid eye movement sleep behaviour disorder (RBD) and has identified several predictors of phenoconversion.	[16]
2	Bradley F Boeve	Clinicopathologic Correlations in 172 Cases of Rapid Eye Movement Sleep Behavior Disorder with or without a Coexisting Neurologic Disorder	Sleep Medicine	225	The study demonstrates that RBD typically manifests before cognitive impairment, parkinsonism, or autonomic dysfunction in individuals with an underlying neurodegenerative disorder. These findings provide strong evidence for the association between RBD and synucleinopathies.	[17]
3	Bradley F Boeve	Melatonin for Treatment of REM Sleep Behavior Disorder in Neurologic Disorders: Results in 14 Patients	Sleep Medicine	225	The findings of this study suggest that melatonin may be a viable option as either a standalone or adjunctive therapy for patients with RBD who present various neurological symptoms and disorders.	[18]
4	Yonas E Geda	Neuropsychiatric Symptoms in Alzheimer’s Disease: Past Progress and Anticipation of the Future	Alzheimers & Dementia	224	The study proposes four potential mechanisms that establish a connection between neuropsychiatric symptoms (including depression, apathy, sleep disturbances, agitation, and psychosis) and MCI or Alzheimer’s disease dementia.	[19]
5	Jean Woo	Frailty Screening in the Community Using the FRAIL Scale	Journal of The American Medical Directors Association	216	Among individuals aged 65 years and older who are frail or prefrail, approximately 60% exhibit MCI along with suboptimal sleep quality. Additionally, they consume a higher number of medications, especially sleeping pills.	[20]
6	Ronald B Postuma	Rapid Eye Movement Sleep Behavior Disorder and Risk of Dementia in Parkinson’s Disease: A Prospective Study	Movement Disorders	205	All participants enrolled in the study exhibited MCI; the findings revealed that a loss of baseline REM sleep atonia predicted subsequent dementia development, as well as the emergence of hallucinations and cognitive fluctuations.	[21]
7	Carmen E Westerberg	Concurrent Impairments in Sleep and Memory in Amnestic Mild Cognitive Impairment	Journal of The International Neuropsychological Society	183	The findings suggest that sleep disturbances in individuals with amnestic MCI contribute to memory deficits by disrupting the consolidation of memories dependent on sleep.	[22]
8	Biancamaria Guarnieri	Prevalence of Sleep Disturbances in Mild Cognitive Impairment and Dementing Disorders: A Multicenter Italian Clinical Cross-Sectional Study on 431 Patients	Dementia and Geriatric Cognitive Disorders	183	More than 60% of individuals experienced one or more sleep disturbances, often occurring in conjunction with each other without any discernible pattern of cooccurrence. The frequency of any sleep disorder was similar between those with Alzheimer’s disease and MCI.	[23]
9	Bradley F Boeve	Validation of the Mayo Sleep Questionnaire to Screen for REM Sleep Behavior Disorder in an Aging and Dementia Cohort	Sleep Medicine	181	The study suggests that the Mayo Sleep Questionnaire demonstrates sufficient sensitivity and specificity to diagnose RBD in elderly individuals with cognitive impairment and/or parkinsonism.	[24]
10	Martijn L. T. M. Müller	Cholinergic Dysfunction in Parkinson’s Disease	Current Neurology and Neuroscience Reports	159	Given that RBD serves as an antecedent marker for cognitive impairment and dementia in Parkinson’s Disease, these findings suggest the possibility of early degeneration in the cholinergic system in this condition.	[25]