Evidence map›Paper›PMID 32440922›Full record

Observational studyJournal of neurology2020

Sonography of optic nerve sheath diameter identifies patients with middle cerebral artery infarction at risk of a malignant course: a pilot prospective observational study.

Piergiorgio Lochner, Klaus Fassbender, Anika Andrejewski, Stefanie Behnke, Gudrun Wagenpfeil, Mathias Fousse, Stefan A Helwig, Martin Lesmeister, Erwin Stolz, Wolfgang Reith and 2 more

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Journal of neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 14% 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. B-mode transorbital ultrasonography for the diagnosis of idiopathic intracranial hypertension: an updated systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
    Pooled it
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  4. 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

12 authors at 3 institutions in 2 countries.

Piergiorgio LochnerDepartment of Neurology, Saarland University Medical Center, 66421, Homburg, Germany. piergiorgio.lochner@gmail.com.ORCID http://orcid.org/0000-0002-2101-6066
Klaus FassbenderDepartment of Neurology, Saarland University Medical Center, 66421, Homburg, Germany.
Anika AndrejewskiDepartment of Neurology, Saarland University Medical Center, 66421, Homburg, Germany.
Stefanie BehnkeDepartment of Neurology, Saarland University Medical Center, 66421, Homburg, Germany.
Gudrun WagenpfeilInstitute for Medical Biometry, Epidemiology and Medical Informatics, Saarland University, Homburg, Germany.
Mathias FousseDepartment of Neurology, Saarland University Medical Center, 66421, Homburg, Germany.
Stefan A HelwigDepartment of Neurology, Saarland University Medical Center, 66421, Homburg, Germany.
Martin LesmeisterDepartment of Neurology, Saarland University Medical Center, 66421, Homburg, Germany.
Erwin StolzDepartment of Neurology, Justus-Liebig University, Giessen, Germany.
Wolfgang ReithDepartment of Neuroradiology, Saarland University Medical Center, Homburg, Germany.
Francesco BrigoDepartment of Neuroscience, Biomedicine and Movement Science, University of Verona, Verona, Italy.
Umut YilmazDepartment of Neuroradiology, Saarland University Medical Center, Homburg, Germany.
Saarland University · DEJustus-Liebig-Universität Gießen · DEUniversity of Verona · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTo assess the value of optic nerve sheath diameter (ONSD) measurements at different time points to predict the malignant evolution in middle cerebral artery (MCA) infarction and to investigate the relationship between ONSD and infarct volume on follow-up computed tomography (CT).

methodsIn a single-center prospective observational study, we recruited patients with MCA infarction and age- and sex-matched controls. Clinical characteristics including NationaI Institutes of Health Stroke Scale (NIHSS) and ONSD measurement were assessed during the first five days after symptom onset. Volumetric analysis of the infarction was performed by a neuroradiologist, who was blinded to results of ONSD measurement and clinical examinations, based on  CT scans.

resultsWe enrolled 29 patients with MCA infarction, including 10 with malignant MCA (mMCA) infarction and 14 controls. Mean ONSD on admission was already larger in patients who had developed an mMCA (5.99 ± 0.32 mm) compared to patients with MCA infarction (4.98 ± 0.53 mm; P = 0.003), and to control patients (4.57 ± 0.29 mm; P < 0.001). Correlation was observed between the ONSD mean value bilateral measures per individual and volumetric evaluation of cerebral infarction in the CT scan after one day (r = 0.623; P = 0.002). An ONSD value of 5.6 mm predicted an mMCA with a sensitivity of 100% and specificity of 90% yielding a positive predictive value of 83% and negative predictive value of 100%.

conclusionsONSD measurement might be accurate for the noninvasive detection of increased ICP and for the recognition of patients being likely to develop mMCA.

Indexed as

Infarction, Middle Cerebral ArteryIntracranial HypertensionHumansIntracranial PressureOptic NerveProspective StudiesTomography, X-Ray ComputedUltrasonographyIntracranial pressureMalignant brain edemaMalignant middle cerebral arteryMiddle cerebral arteryNationaI institutes of health stroke scaleOptic nerve sheath diameterTransorbital sonography

Identifiers

PMID32440922
OpenAlexW3026561032

What OpenQuestion holds

Textmetadata
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.