Evidence map›Paper›PMID 33976751›Full record

ArticleCanadian respiratory journal2021

Effects of Continuous Positive Airway Pressure on Sleep EEG Characteristics in Patients with Primary Central Sleep Apnea Syndrome.

Cheng Zhang, Kun Chen, Guangfa Wang, Jue Zhang, Jing Ma

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Canadian respiratory journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–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

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

  1. Pooled it
  2. 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

5 authors.

Cheng ZhangDepartment of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China.ORCID 0000-0002-2972-7639
Kun ChenAcademy of Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.
Guangfa WangDepartment of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China.ORCID 0000-0001-5949-2124
Jue ZhangAcademy of Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.
Jing MaDepartment of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China.ORCID 0000-0003-3902-0917

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to investigate the effects of continuous positive airway pressure (CPAP) on the electroencephalographic (EEG) characteristics of patients with primary central sleep apnea syndrome (CSAS). Nine patients with primary CSAS were enrolled in this study. The raw sleep EEG data were analyzed based on two main factors: fractal dimension (FD) and zero-crossing rate of detrended FD. Additionally, conventional EEG spectral analysis in the delta, theta, alpha, and beta bands was conducted using a fast Fourier transform. The FD in patients with primary CSAS who underwent CPAP treatment was significantly decreased during nonrapid eye movement (NREM) sleep but increased during rapid eye movement (REM) sleep (

Indexed as

Continuous Positive Airway PressureAdultAgedElectroencephalographyFemaleHumansMaleMiddle AgedSleepSleep Apnea, CentralSleep Apnea, Obstructive

Identifiers

PMID33976751
PMCPMC8084662

What OpenQuestion holds

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Registered trials

None linked

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.