Evidence map›Paper›PMID 31992126›Full record

ArticleThe neuroradiology journal2020

Alterations of connectivity patterns in functional brain networks in patients with mild traumatic brain injury: A longitudinal resting-state functional magnetic resonance imaging study.

Maria M D'Souza, Mukesh Kumar, Ajay Choudhary, Prabhjot Kaur, Pawan Kumar, Poonam Rana, Richa Trivedi, Tarun Sekhri, Ajay K Singh

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Article in The neuroradiology journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Maria M D'SouzaInstitute of Nuclear Medicine and Allied Sciences, India.ORCID https://orcid.org/0000-0002-4107-2487
Mukesh KumarInstitute of Nuclear Medicine and Allied Sciences, India.
Ajay ChoudharyDepartment of Neurosurgery, RML Hospital, India.
Prabhjot KaurInstitute of Nuclear Medicine and Allied Sciences, India.
Pawan KumarInstitute of Nuclear Medicine and Allied Sciences, India.
Poonam RanaInstitute of Nuclear Medicine and Allied Sciences, India.
Richa TrivediInstitute of Nuclear Medicine and Allied Sciences, India.
Tarun SekhriInstitute of Nuclear Medicine and Allied Sciences, India.
Ajay K SinghDG'LS', DRDO, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimIn the present study, we aimed to characterise changes in functional brain networks in individuals who had sustained uncomplicated mild traumatic brain injury (mTBI). We assessed the progression of these changes into the chronic phase. We also attempted to explore how these changes influenced the severity of post-concussion symptoms as well as the cognitive profile of the patients.

methodsA total of 65 patients were prospectively recruited for an advanced magnetic resonance imaging (MRI) scan within 7 days of sustaining mTBI. Of these, 25 were reassessed at 6 months post injury. Differences in functional brain networks were analysed between cases and age- and sex-matched healthy controls using independent component analysis of resting-state functional MRI.

resultsOur study revealed reduced functional connectivity in multiple networks, including the anterior default mode network, central executive network, somato-motor and auditory network in patients who had sustained mTBI. A negative correlation between network connectivity and severity of post-concussive symptoms was observed. Follow-up studies performed 6 months after injury revealed an increase in network connectivity, along with an improvement in the severity of post-concussion symptoms. Neurocognitive tests performed at this time point revealed a positive correlation between the functional connectivity and the test scores, along with a persistence of negative correlation between network connectivity and post-concussive symptom severity.

conclusionOur results suggest that uncomplicated mTBI is associated with specific abnormalities in functional brain networks that evolve over time and may contribute to the severity of post-concussive symptoms and cognitive deficits.

Indexed as

AdultBrainBrain ConcussionFemaleFollow-Up StudiesFunctional NeuroimagingHumansMagnetic Resonance ImagingMaleNerve NetPost-Concussion SyndromeSeverity of Illness IndexYoung AdultMild traumatic brain injuryneurocognitive deficitspost-concussion symptomsresting-state functional MRI

Identifiers

PMID31992126
PMCPMC7140304

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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.