Evidence map›Paper›PMID 20299434›Full record

Trial reportAJNR. American journal of neuroradiology2010

Wallerian degeneration in the corticospinal tract evaluated by diffusion tensor imaging correlates with motor deficit 30 days after middle cerebral artery ischemic stroke.

Josep Puig, S Pedraza, G Blasco, J Daunis-I-Estadella, A Prats, F Prados, I Boada, M Castellanos, J Sánchez-González, S Remollo and 4 more

Registry-linked trialOpen access · hybridAbstract readClinical Trial
In one paragraph

Trial report in AJNR. American journal of neuroradiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01862172 (FOCAL CORTICAL ATROPHY AFTER MYOCARDIAL INTERNAL CAPSULE), which is not on this map. Cited by 103 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
103citing papers in PubMed, 1 pooled it
10.2field-weighted citation impact, top 1% 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.

NCT01862172 nacompletednot on this mapstarted 2013, after this paper: background citation

Focal cortical atrophy after myocardial internal capsule: correlation fraction anisotropy beam pyramid and disability

TypeinterventionalSponsorUniversity Hospital, ToulouseRan2013 to 2014Enrolled21ConditionsIschemic StrokeArmsAdditional MRI
3 · Its place in the literature

Who cites it

103 citing papers in PubMed, 1 synthesis or guideline pooled it, 181 citations in OpenAlex.

  1. Pooled it
  2. Changes in synaptic density in the subacute phase after ischemic stroke: AJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
    Trial
  3. Trial
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Role of NADCellular and molecular neurobiology · 2023
    Review
  20. Neural bases characterizing chronic and severe upper-limb motor deficits after brain lesion.Journal of neural transmission (Vienna, Austria : 1996) · 2023
    Article

43 more citing papers are in PubMed but not listed here.

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

14 authors at 3 institutions in 1 country.

Josep PuigDepartment of Radiology, Girona Biomedical Research Institute, Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain. jpuigalcantara@yahoo.es
S Pedraza
G Blasco
J Daunis-I-Estadella
A Prats
F Prados
I Boada
M Castellanos
J Sánchez-González
S Remollo
G Laguillo
A M Quiles
E Gómez
J Serena
Institut d'Investigació Biomèdica de Girona · ESUniversity of Girona · ESUniversitat de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThe quantification and clinical significance of WD in CSTs following supratentorial stroke are not well understood. We evaluated the anisotropy by using DTI and signal-intensity changes on conventional MR imaging in the CST to determine whether these findings are correlated with limb motor deficit in patients with MCA ischemic stroke. MATERIALS AND

methodsWe studied 60 patients within 12 hours of stroke onset. At admission, day 3, and day 30 of evolution, patients underwent multimodal MR imaging, including DTI sequences. We assessed the severity of limb weakness by using the motor subindex scores (5a, 5b, 6a, 6b) of the m-NIHSS and established 3 groups: I (m-NIHSS scores of 0), II (m-NIHSS, 1-4), and III (m-NIHSS, 5-8). FA values and rFAs were measured on the affected and the unaffected CSTs in the pons.

resultsFA values for the CST were significantly lower on the affected side compared with the unaffected side only at day 30 (P < .001), and the rFA was significantly correlated with the motor deficit at day 30 (P < .001; r = -0.793). The sensitivity, specificity, and positive and negative predictive values for motor deficit by rFA < 0.925 were 95.2%, 94.9%, 90.9%, and 97.4%, respectively.

conclusionsWD in the CST revealed by DTI correlates with motor deficit 30 days after MCA ischemic stroke. This study highlights the utility of imaging follow-up at 30 days and the potential of DTI as a surrogate marker in clinical trials.

Indexed as

Acute DiseaseAgedAged, 80 and overBrain IschemiaDiffusion Tensor ImagingFemaleFollow-Up StudiesHumansInfarction, Middle Cerebral ArteryMaleMiddle AgedMovement DisordersPredictive Value of TestsPyramidal TractsSensitivity and SpecificityWallerian Degeneration

Identifiers

PMID20299434
PMCPMC7965455
OpenAlexW1986162916

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.