Evidence map›Paper›PMID 31410504›Full record

ArticleNeuroradiology2019

Dissociative changes in gray matter volume following electroconvulsive therapy in major depressive disorder: a longitudinal structural magnetic resonance imaging study.

Hui Xu, Teng Zhao, Feifei Luo, Yunsong Zheng

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Article in Neuroradiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 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

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3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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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

4 authors.

Hui XuSchool of Medical Technology, Shaanxi University of Traditional Chinese Medicine, Xianyang, 712046, China.
Teng ZhaoDepartment of Ultrasound, Xi'an Gaoxin Hospital, Xi'an, 710075, China.
Feifei LuoDepartment of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
Yunsong ZhengSchool of Medical Technology, Shaanxi University of Traditional Chinese Medicine, Xianyang, 712046, China. zhengysnr@gmail.com.

Funding

National Natural Science Foundation of China 81673832National Natural Science Foundation of China 81873177Xianyang Science and Technology Research Program 2014k04-05Xianyang Science and Technology Research Program 2016k02-86
6 · The paper itself

Abstract

purposeElectroconvulsive therapy (ECT), has become a widely applied potent treatment in clinical practice for major depressive disorder (MDD) over decades. However, due to its nonspecific and spatially unfocused nature, the underlying mechanisms of ECT remain unclear.

methodsIn this longitudinal study, 11 patients with MDD underwent magnetic resonance imaging (MRI) before and after ECT at three different time points. A longitudinal voxel-based morphology approach was performed to characterize dynamic changes in brain gray matter volume (GMV). Twelve age- and sex-matched healthy controls were recruited to identify structural brain changes of patients with MDD before and after ECT.

resultsThe brain GMV was globally found to increase shortly after a series of ECT, and then decrease 1 month after ECT treatment exposure. This fluctuating tendency was localized to the bilateral inferior parietal lobes, bilateral insula, and right superior temporal cortex. After the global GMV was corrected, there were only significant global effect increases in GMV in the left anterior hippocampus and right caudate, which were both significantly correlated with the improvement of depression symptoms. However, 1 month after ECT treatments, there was still significantly reduced GMV following patients with MDD compared to healthy controls in the left putamen, right anterior cingulate, and left inferior temporal cortex, which was observed before ECT.

conclusionsThese findings indicate that ECT in patients with MDD is closely associated with dissociative structural changes. The locally enhanced GMV in limbic areas may reflect that the ECT-related brain compensatory mechanisms contribute to brain structure recovery in MDD.

Indexed as

Electroconvulsive TherapyAdultFemaleGray MatterHumansLongitudinal StudiesMagnetic Resonance ImagingMajor Depressive DisorderMaleMiddle AgedDissociative changesElectroconvulsive therapyLongitudinal MRIMajor depressive disorder

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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.