Evidence map›Paper›PMID 31316082›Full record

Observational studyScientific reports2019

In vivo structural and functional assessment of optic nerve damage in neuromyelitis optica spectrum disorders and multiple sclerosis.

Marco Vabanesi, Marco Pisa, Simone Guerrieri, Lucia Moiola, Marta Radaelli, Stefania Medaglini, Vittorio Martinelli, Giancarlo Comi, Letizia Leocani

Open access · goldAbstract readComparative StudyObservational Study
In one paragraph

Observational study in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 5% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
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  16. Update on neuromyelitis optica spectrum disorder.Current opinion in ophthalmology · 2020
    Review
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  20. Article
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

9 authors at 1 institution in 1 country.

Marco VabanesiUniversity Vita-Salute San Raffaele, Milan, Italy.
Marco PisaUniversity Vita-Salute San Raffaele, Milan, Italy.
Simone GuerrieriUniversity Vita-Salute San Raffaele, Milan, Italy.
Lucia MoiolaDepartment of Neurology and Institute of Experimental Neurology (INSPE), San Raffaele Hospital Scientific Institute, Milan, Italy.
Marta RadaelliDepartment of Neurology and Institute of Experimental Neurology (INSPE), San Raffaele Hospital Scientific Institute, Milan, Italy.
Stefania MedagliniDepartment of Neurology and Institute of Experimental Neurology (INSPE), San Raffaele Hospital Scientific Institute, Milan, Italy.
Vittorio MartinelliDepartment of Neurology and Institute of Experimental Neurology (INSPE), San Raffaele Hospital Scientific Institute, Milan, Italy.
Giancarlo ComiUniversity Vita-Salute San Raffaele, Milan, Italy.
Letizia LeocaniUniversity Vita-Salute San Raffaele, Milan, Italy. letizia.leocani@hsr.it.
Vita-Salute San Raffaele University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Early detection of neuromyelitis optica spectrum disorders (NMOSD), especially after optic neuritis, a presenting manifestation commonly observed also in multiple sclerosis (MS), is crucial for timely treatment and prognosis. Integrated visual pathway assessment with optical coherence tomography (OCT) and visual evoked potentials (VEP) may help in this task, showing in vivo different pathophysiological backgrounds. We evaluated combined VEP and OCT in a cross-sectional, single-centre study assessing 50 consecutive NMOSD patients, 57 MS patients and 52 healthy controls. After optic neuritis, VEP were more frequently absent in NMOSD compared to MS; most NMOSD eyes with recordable VEP showed prolonged latency, but extreme latency delays were less common than in MS. OCT showed predominantly axonal involvement in NMOSD, with 88% eyes (95% CI: 69-97%) displaying retinal nerve fibre layer thickness <60 µm even after first optic neuritis episode. Accuracy of OCT was further enhanced by combination with VEP into a new Z-score derived OCT-VEP index, measuring prevalence of axonal damage or demyelination. Our results suggest that integrated optic nerve assessment may elucidate differences in optic neuritis pathophysiology; conduction slowing with relatively preserved nerve fibre layer suggests MS, while severe neuroaxonal loss after optic neuritis, often hindering VEP response, characterizes NMOSD.

Indexed as

AdultCross-Sectional StudiesEarly DiagnosisEvoked Potentials, VisualFemaleHumansMaleMiddle AgedMultiple SclerosisNerve FibersNeuromyelitis OpticaOptic NerveReaction TimeTomography, Optical Coherence

Identifiers

PMID31316082
PMCPMC6637174
OpenAlexW2956561901

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.