Evidence map›Paper›PMID 34475793›Full record

ArticleNature and science of sleep2021

Electroencephalographic Activity and Cognitive Function in Middle-Aged Patients with Obstructive Sleep Apnea Before and After Continuous Positive Airway Pressure Treatment.

Jianhua Wang, Juan Xu, Shuling Liu, Fei Han, Qiaojun Wang, Hao Gui, Rui Chen

Abstract read
In one paragraph

Article in Nature and science of sleep, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

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4 · The record

Corrections and comments

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

7 authors.

Jianhua Wang *Sleep Center, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215004, People's Republic of China.ORCID 0000-0001-7595-6881
Juan Xu *Sleep Center, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215004, People's Republic of China.
Shuling LiuSleep Center, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215004, People's Republic of China.
Fei HanSleep Center, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215004, People's Republic of China.
Qiaojun WangSleep Center, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215004, People's Republic of China.
Hao GuiSleep Center, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215004, People's Republic of China.
Rui ChenSleep Center, The Second Affiliated Hospital of Soochow University, Soochow University, Suzhou, 215004, People's Republic of China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the effect of continuous positive airway pressure (CPAP) on sleep electroencephalogram (EEG) activity in patients with obstructive sleep apnea (OSA) and to examine the correlation between quantitative EEG changes and cognitive function. PATIENTS AND

methodsA total of 69 men and 11 women were collected with an average age of 39.61 ± 7.67 years old from among middle-aged patients who had first visits with snoring as their main complaint. All of them completed sleep questionnaires, neurocognitive tests and night polysomnography (PSG). The patients in the OSA group also completed the second night of PSG monitoring under CPAP after pressure titration. A power spectrum analysis of EEG was used, and the correlation between the frequency powers of EEG and the scores of the Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Index (PSQI), Mini-Mental State Examination (MMSE), and the Montreal Cognitive Assessment (MoCA) were further analyzed.

resultsCompared with the control group, the delta/alpha power ratio (DAR) and the (delta + theta)/(alpha + beta) power ratio (the slowing ratio, TSR) of the OSA group before CPAP were higher (

conclusionPatients with OSA have greater slow frequency EEG activity during sleep than the control group. CPAP treatment reversed the slow frequency EEG activity in patients with OSA.

Indexed as

cognitive functioncontinuous positive airway pressureobstructive sleep apneaquantitative electroencephalogram

Identifiers

PMID34475793
PMCPMC8407675

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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.