Evidence map›Paper›PMID 30326347›Full record

ArticleJournal of affective disorders2019

Alterations in patients with major depressive disorder before and after electroconvulsive therapy measured by fractional amplitude of low-frequency fluctuations (fALFF).

Haitang Qiu, Xinke Li, Qinghua Luo, Yongming Li, Xichuan Zhou, Hailin Cao, Yuanhong Zhong, Mingui Sun

Open access · greenAbstract read
In one paragraph

Article in Journal of affective disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 3 pooled it
2.5field-weighted citation impact, top 10% 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.

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

35 citing papers in PubMed, 3 syntheses or guidelines pooled it, 53 citations in OpenAlex.

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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

8 authors at 4 institutions in 2 countries.

Haitang QiuMental Health Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China.
Xinke LiCollege of Communication Engineering, Chongqing University, Chongqing 400044, PR China; Collaborative innovation center for brain science, Chongqing University, Chongqing 400044, PR China; Department of Neurosurgery, University of Pittsburgh, Pittsburgh 15213, PA, USA. Electronic address: lxk@cqu.edu.cn.
Qinghua LuoMental Health Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China.
Yongming LiCollege of Communication Engineering, Chongqing University, Chongqing 400044, PR China; Collaborative innovation center for brain science, Chongqing University, Chongqing 400044, PR China.
Xichuan ZhouCollege of Communication Engineering, Chongqing University, Chongqing 400044, PR China.
Hailin CaoCollege of Communication Engineering, Chongqing University, Chongqing 400044, PR China.
Yuanhong ZhongCollege of Communication Engineering, Chongqing University, Chongqing 400044, PR China.
Mingui SunDepartment of Neurosurgery, University of Pittsburgh, Pittsburgh 15213, PA, USA.
Chongqing University · CNUniversity of Pittsburgh · USChongqing Medical University · CNFirst Affiliated Hospital of Chongqing Medical University · CN

Funding

Biomimetic Self-Adhesive Dry EEG ElectrodesR01EB013174 · NIBIB · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SUN, MINGUI · 2012 to 2014
$1.1M
NIBIB NIH HHS R01 EB013174
6 · The paper itself

Abstract

backgroundElectroconvulsive therapy (ECT) is an important treatment option for patients with major depressive disorder (MDD). However, the mechanisms of ECT in MDD are still unclear.

methodsTwenty-four patients with severe MDD and 14 healthy controls were enrolled in this study. Eight ECT sessions were conducted for MDD patients using brief-pulse square-wave signal at bitemporal locations. To investigate the regional cerebral blood flow in MDD patients before and after ECT treatments by resting-state functional magnetic resonance imaging (rs-fMRI), the patients were scanned twice (before the first ECT and after the eighth ECT) for data acquisition. Afterward, we adopted fractional amplitude of low-frequency fluctuations (fALFF) to assess the alterations of regional brain activity.

resultsCompared with healthy controls, the fALFF in the cerebellum lobe, parahippocampal gyrus, fusiform gyrus, anterior cingulate gyrus, and thalamus in MDD patients before ECT (pre-ECT) was significantly increased. In another comparison, the fALFF in the cerebellum anterior lobe, fusiform gyrus, insula, parahippocampal gyrus, middle frontal gyrus, and inferior frontal gyrus in pre-ECT patients was significantly greater than the post-ECT fALFF. LIMITATIONS: Only two rs-fMRI scans were conducted at predefined times: before the first and after the eighth ECT treatment. More scans during the ECT sessions would yield more information. In addition, the sample size in this study was limited. The number of control subjects was relatively small. A larger number of subjects would produce more robust findings.

conclusionsThe fALFF of both healthy controls and post-ECT patients in cerebellum anterior lobe, fusiform gyrus, and parahippocampal gyrus is significantly lower than the fALFF of pre-ECT patients. This finding demonstrates that ECT treatment is effective on these brain areas in MDD patients.

Indexed as

Electroconvulsive TherapyAdolescentAdultCase-Control StudiesCerebellumCerebral CortexFemaleFrontal LobeGyrus CinguliHumansImage Interpretation, Computer-AssistedMagnetic Resonance ImagingMajor Depressive DisorderMaleMiddle AgedParahippocampal GyrusElectroconvulsive therapyFractional amplitude of low-frequency fluctuationsMajor depressive disorderResting-state functional magnetic resonance imaging (rs-fMRI)

Identifiers

PMID30326347
PMCPMC6239214
OpenAlexW2896608372

What OpenQuestion holds

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LicenceTDM
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 OpenQuestion graph.