Evidence map›Paper›PMID 34242498›Full record

Trial reportCNS neuroscience & therapeutics2021

Normobaric oxygen may correct chronic cerebral ischemia-mediated EEG anomalies.

Jia-Yue Ding, Yu Liu, Gary-B Rajah, Zhi-Ying Chen, Shi-Yong Zhang, Yu-Chuan Ding, Xun-Ming Ji, Ran Meng

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in CNS neuroscience & therapeutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03745092 (The Efficacy of Normobaric Oxygen on Chronic Cerebral Ischemia), which is not on this map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.5field-weighted citation impact, top 41% of its field
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.

NCT03745092 nacompletednot on this map

The Efficacy of Normobaric Oxygen on Chronic Cerebral Ischemia

TypeinterventionalSponsorCapital Medical UniversityRan2018 to 2020Enrolled49ConditionsNormobaric Oxygen, Cerebral IschemiaArmsnormobaric oxygen, room air
3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 5 citations in OpenAlex.

  1. Trial
  2. Normobaric Hyperoxia Therapy in Treating Stroke.Clinical interventions in aging · 2025
    Review
  3. Article
  4. Review
  5. Article
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

8 authors at 3 institutions in 2 countries.

Jia-Yue DingDepartment of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.ORCID 0000-0003-3562-2187
Yu LiuEpilepsy Center, Beijing Fengtai You'anmen Hospital, Beijing, China.
Gary-B RajahDepartment of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA.
Zhi-Ying ChenDepartment of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.ORCID 0000-0001-6020-4484
Shi-Yong ZhangDepartment of Interventional Neurology, Beijing Fengtai You'anmen Hospital, Beijing, China.
Yu-Chuan DingDepartment of China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing, China.
Xun-Ming JiAdvanced Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.ORCID 0000-0003-0293-2744
Ran MengDepartment of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.ORCID 0000-0003-1190-4710
Capital Medical University · CNBeijing Fengtai Hospital · CNJacobs Institute · US

Funding

Beijing Natural Science Foundation 7212047National Natural Science Foundation of China 81371289the National Key R&D Program of China 2017YFC1308401
6 · The paper itself

Abstract

aimsTo explore the safety and efficacy of normobaric oxygen (NBO) on correcting chronic cerebral ischemia (CCI) and related EEG anomalies.

methodsThis prospective randomized trial (NCT03745092) enrolled 50 cases of CCI patients, which were divided into NBO (8 L/min of oxygen supplement) group and control group (room air) randomly, and also enrolled 21 healthy volunteers. Two times of 30-min EEG recordings with the interval of 45min of NBO or room air were analyzed quantitatively.

resultsThe CCI-mediated EEG presented with two patterns of electrical activities: high-power oscillations (high-power EEG, n = 26) and paroxysmal slow activities under the normal-power background (normal-power EEG, n = 24). The fronto-central absolute power (AP) of the beta, alpha, theta, and delta in the high-power EEG was higher than that in healthy EEG (p < 0.05). The fronto-central theta/alpha, delta/alpha and (delta + theta)/(alpha + beta) ratios in the normal-power EEG were higher than those in healthy EEG (p < 0.05). The high-power EEG in NBO group had higher fronto-central AP reduction rates than those in control group (p < 0.05). NBO remarkably reduced the fronto-central theta/alpha, delta/alpha, and (delta + theta)/(alpha + beta) ratios in the normal-power EEG (p < 0.05).

conclusionsNBO rapidly ameliorates CCI-mediated EEG anomalies, including attenuation of the abnormal high-power oscillations and the paroxysmal slow activities associated with CCI.

Indexed as

ElectroencephalographyAdultAgedBrain IschemiaChronic DiseaseEntropyFemaleHumansMaleMiddle AgedOxygen Inhalation TherapyProspective StudiesReference ValuesWavelet AnalysisYoung Adultbrain dysfunctionchronic ischemiaelectrophysiologyoxygen

Identifiers

PMID34242498
PMCPMC8446210
OpenAlexW3182111828

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.