Evidence map›Paper›PMID 34768418›Full record

ArticleJournal of clinical medicine2021

Voluntary Modulation of Evoked Responses Generated by Epidural and Transcutaneous Spinal Stimulation in Humans with Spinal Cord Injury.

Jonathan S Calvert, Megan L Gill, Margaux B Linde, Daniel D Veith, Andrew R Thoreson, Cesar Lopez, Kendall H Lee, Yury P Gerasimenko, Victor R Edgerton, Igor A Lavrov and 3 more

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-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

19 citing papers in PubMed, 23 citations in OpenAlex.

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  7. Synergistic implications of combinatorial rehabilitation approaches using spinal stimulation on therapeutic outcomes in spinal cord injury.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2024
    Review
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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

13 authors at 6 institutions in 4 countries.

Jonathan S CalvertMayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN 55905, USA.ORCID 0000-0001-7197-9082
Megan L GillDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN 55905, USA.
Margaux B LindeDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN 55905, USA.
Daniel D VeithDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN 55905, USA.
Andrew R ThoresonDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN 55905, USA.
Cesar LopezDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN 55905, USA.
Kendall H LeeDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN 55905, USA.
Yury P GerasimenkoPavlov Institute of Physiology of Russian Academy of Sciences, 199034 St. Petersburg, Russia.
Victor R EdgertonDepartment of Integrative Biology and Physiology, University of California Los Angeles, Los Angeles, CA 90095, USA.ORCID 0000-0001-6534-1875
Igor A LavrovDepartment of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905, USA.
Kristin D ZhaoDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN 55905, USA.
Peter J GrahnDepartment of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN 55905, USA.
Dimitry G SayenkoCenter for Neuroregeneration, Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX 77030, USA.
Mayo Clinic in Arizona · USUniversity of Minnesota Rochester · USHouston Methodist · USMayo Clinic in Florida · USUniversity of Louisville · USUniversity of Technology Sydney · AU

Funding

Christopher and Dana Reeve Foundation N/ACraig H. Neilsen Foundation N/ADana and Albert R. Broccoli Charitable Foundation N/AGrainger Foundation N/AJack Jablonski Bel13ve in Miracles Foundation N/AMayo Clinic Center for Regenerative Medicine N/AMayo Clinic Graduate School of Biomedical Sciences N/AMayo Clinic Rehabilitation Medicine Research Center N/AMayo Clinic Transform the Practice N/AMinnesota Office of Higher Education's Spinal Cord Injury and Traumatic Brain Injury Research Grant N/ANIH HHS 1 R01 NS102920-01A1Regenerative Medicine Minnesota N/AWalkabout Foundation N/A
6 · The paper itself

Abstract

Transcutaneous (TSS) and epidural spinal stimulation (ESS) are electrophysiological techniques that have been used to investigate the interactions between exogenous electrical stimuli and spinal sensorimotor networks that integrate descending motor signals with afferent inputs from the periphery during motor tasks such as standing and stepping. Recently, pilot-phase clinical trials using ESS and TSS have demonstrated restoration of motor functions that were previously lost due to spinal cord injury (SCI). However, the spinal network interactions that occur in response to TSS or ESS pulses with spared descending connections across the site of SCI have yet to be characterized. Therefore, we examined the effects of delivering TSS or ESS pulses to the lumbosacral spinal cord in nine individuals with chronic SCI. During low-frequency stimulation, participants were instructed to relax or attempt maximum voluntary contraction to perform full leg flexion while supine. We observed similar lower-extremity neuromusculature activation during TSS and ESS when performed in the same participants while instructed to relax. Interestingly, when participants were instructed to attempt lower-extremity muscle contractions, both TSS- and ESS-evoked motor responses were significantly inhibited across all muscles. Participants with clinically complete SCI tested with ESS and participants with clinically incomplete SCI tested with TSS demonstrated greater ability to modulate evoked responses than participants with motor complete SCI tested with TSS, although this was not statistically significant due to a low number of subjects in each subgroup. These results suggest that descending commands combined with spinal stimulation may increase activity of inhibitory interneuronal circuitry within spinal sensorimotor networks in individuals with SCI, which may be relevant in the context of regaining functional motor outcomes.

Indexed as

electrically evoked spinal motor potentialsneuromodulationspinal cord injuryspinal cord stimulation

Identifiers

PMID34768418
PMCPMC8584516
OpenAlexW3208914573

What OpenQuestion holds

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LicenceCC BY
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.