Evidence map›Paper›PMID 37231107›Full record

ArticleScientific reports2023

Compensatory mechanisms of reduced interhemispheric EEG connectivity during sleep in patients with apnea.

Maksim Zhuravlev, Mikhail Agaltsov, Anton Kiselev, Margarita Simonyan, Mikhail Novikov, Anton Selskii, Rodion Ukolov, Oksana Drapkina, Anna Orlova, Thomas Penzel and 1 more

Abstract read
In one paragraph

Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 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

11 authors.

Maksim ZhuravlevNational Medical Research Center for Therapy and Preventive Medicine, Moscow, Russia.
Mikhail AgaltsovNational Medical Research Center for Therapy and Preventive Medicine, Moscow, Russia.
Anton KiselevNational Medical Research Center for Therapy and Preventive Medicine, Moscow, Russia.
Margarita SimonyanInstitute of Physics, Saratov State University, Saratov, Russia.
Mikhail NovikovInstitute of Cardiology Research, Saratov State Medical University, Saratov, Russia.
Anton SelskiiInstitute of Physics, Saratov State University, Saratov, Russia.
Rodion UkolovInstitute of Physics, Saratov State University, Saratov, Russia.
Oksana DrapkinaNational Medical Research Center for Therapy and Preventive Medicine, Moscow, Russia.
Anna OrlovaNational Medical Research Center for Therapy and Preventive Medicine, Moscow, Russia.
Thomas PenzelInterdisciplinary Sleep Medicine Center, Charité-Universitätsmedizin Berlin, Berlin, Germany.
Anastasiya RunnovaNational Medical Research Center for Therapy and Preventive Medicine, Moscow, Russia. a.e.runnova@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We performed a mathematical analysis of functional connectivity in electroencephalography (EEG) of patients with obstructive sleep apnea (OSA) (N = 10; age: 52.8 ± 13 years; median age: 49 years; male/female ratio: 7/3), compared with a group of apparently healthy participants (N = 15; age: 51.5 ± 29.5 years; median age: 42 years; male/female ratio: 8/7), based on the calculation of wavelet bicoherence from nighttime polysomnograms. Having observed the previously known phenomenon of interhemispheric synchronization deterioration, we demonstrated a compensatory increase in intrahemispheric connectivity, as well as a slight increase in the connectivity of the central and occipital areas for high-frequency EEG activity. Significant changes in functional connectivity were extremely stable in groups of apparently healthy participants and OSA patients, maintaining the overall pattern when comparing different recording nights and various sleep stages. The maximum variability of the connectivity was observed at fast oscillatory processes during REM sleep. The possibility of observing some changes in functional connectivity of brain activity in OSA patients in a state of passive wakefulness opens up prospects for further research. Developing the methods of hypnogram evaluation that are independent of functional connectivity may be useful for implementing a medical decision support system.

Indexed as

SleepSleep Apnea, ObstructiveAdultAgedAged, 80 and overElectroencephalographyFemaleHumansMaleMiddle AgedSleep, REMSleep StagesWakefulnessYoung Adult

Identifiers

PMID37231107
PMCPMC10213009

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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.