Evidence map›Paper›PMID 41888378›Full record

ArticleScientific reports2026

Preoperative frontal EEG power spectral features associated with psychomotor subtypes of postoperative delirium in cardiovascular surgery: a prospective study.

Chie Nagata, Masahiro Hata, Yuki Miyazaki, Riko Miyoshi, Mayu Futamura, Tamiki Wada, Kiyoshi Yoshida, Shigeru Miyagawa, Manabu Ikeda, Takayoshi Ueno

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Chie NagataDivision of Health Sciences, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan. nagatachie1994@sahs.med.osaka-u.ac.jp.
Masahiro HataDepartment of Psychiatry, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan.
Yuki MiyazakiDepartment of Psychiatry, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan.
Riko MiyoshiDivision of Health Sciences, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan.
Mayu FutamuraDivision of Health Sciences, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan.
Tamiki WadaDepartment of Psychiatry, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan.
Kiyoshi YoshidaDivision of Health Sciences, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan.
Shigeru MiyagawaDepartment of Cardiovascular Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan.
Manabu IkedaDepartment of Psychiatry, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan.
Takayoshi UenoDivision of Health Sciences, The University of Osaka Graduate School of Medicine, Suita, Osaka, Japan.

Funding

JSPS KAKENHI JP22K10839JSPS KAKENHI JP25K10813
6 · The paper itself

Abstract

Postoperative delirium (POD) is associated with complications following cardiovascular surgery, and its psychomotor subtypes differ in clinical course and treatment responsiveness, underscoring the importance of personalized preventive strategies. We aimed to investigate preoperative neurophysiological characteristics associated with POD and its psychomotor subtypes in patients undergoing cardiovascular surgery. This prospective, single-center study included 209 patients undergoing cardiovascular surgery. Preoperative frontal electroencephalography (EEG) was recorded using a patch-type device with three electrodes (left, center, and right). Standardized mean power spectral density of the following frequency bands was calculated: theta (4-8 Hz), alpha (8-13 Hz), beta (13-30 Hz), gamma1 (30-59 Hz), and gamma2 (61-75 Hz). Delirium and its psychomotor subtypes were assessed until postoperative day 7. EEG features were compared between patients with and without POD and among psychomotor subtypes, with adjustment for multiple comparisons. POD occurred in 70 patients (33.5%). No significant differences in preoperative EEG power were observed between patients with and without POD. However, patients with the hyperactive-or-mixed subtype demonstrated significantly higher theta and lower alpha activity than those with the hypoactive or no motor subtypes. These findings may identify neurophysiological markers associated with underlying psychomotor symptoms in delirium and may inform preoperative subtype risk stratification.Trial registration: UMIN-CTR (ID: UMIN000049390).

Indexed as

Cardiac Surgical ProceduresDeliriumElectroencephalographyPostoperative ComplicationsAgedFemaleHumansMaleMiddle AgedPreoperative PeriodProspective StudiesCardiovascular surgical proceduresDeliriumElectroencephalographyNeurophysiological monitoringPsychomotor subtypesRisk factors

Identifiers

PMID41888378
PMCPMC13171878

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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 Socratic graph.