Evidence map›Paper›PMID 25773998›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2015

Multifocal VEP provide electrophysiological evidence of predominant dysfunction of the optic nerve fibers derived from the central retina in Leber's hereditary optic neuropathy.

Lucia Ziccardi, Vincenzo Parisi, Daniela Giannini, Federico Sadun, Anna Maria De Negri, Piero Barboni, Chiara La Morgia, Alfedo A Sadun, Valerio Carelli

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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

10 citing papers in PubMed, 19 citations in OpenAlex.

  1. Trial
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  5. Correlations between visual morphological, electrophysiological, and acuity changes in chronic non-arteritic ischemic optic neuropathy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021
    Article
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  7. Observational
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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

9 authors at 8 institutions in 2 countries.

Lucia ZiccardiNeurophthalmology Unit, Fondazione G.B. Bietti- IRCCS, Via Livenza 3, 00198, Rome, Italy, luxzic@hotmail.com.
Vincenzo Parisi
Daniela Giannini
Federico Sadun
Anna Maria De Negri
Piero Barboni
Chiara La Morgia
Alfedo A Sadun
Valerio Carelli
Fondazione G.B. Bietti · ITAzienda Ospedaliera San Camillo-Forlanini · ITDoheny Eye Institute · USIstituto delle Scienze Neurologiche di Bologna · ITOspedale Maggiore · ITSapienza University of Rome · ITUniversity of Bologna · ITVita-Salute San Raffaele University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo differentiate the bioelectrical cortical responses driven by axons from central and mid-peripheral retina in Leber's hereditary optic neuropathy (LHON) by using multifocal visual evoked potentials (mfVEP).

methodsSeventeen genetically confirmed LHON patients (33.35 ± 8.4 years, 17 eyes) and 22 age-matched controls (C) (38.2 ± 6.0 years, 22 eyes) were studied by mfVEP and optical coherence tomography. MfVEP P1 implicit time (P1 IT, ms) and response amplitude density of the N1-P1 components (N1-P1 RAD, nV/deg(2)) of the second order binary kernel were measured for five concentric retinal areas between the fovea and mid-periphery: 0-20 degrees (R1 to R5).

resultsMean mfVEP P1 ITs and N1-P1 RADs at all five foveal eccentricities were significantly different (p < 0.01) in LHON when compared to controls. In both groups, mean mfVEP responses obtained from R1 to R5 showed a progressive shortening of P1 ITs (linear fitting, LHON: r  = -0.95; C: r = -0.98) and decrease of N1-P1 RADs (exponential fitting, LHON: r (2) = 0.94; C: r (2) = 0.93). The slope of the linear fitting between mean mfVEP P1 ITs in the two groups was about three times greater in LHON than in controls (LHON: y = -13.33x +182.03; C: y = -4.528x +108.1). MfVEP P1 ITs detected in R1 and R2 (0-5 degrees) were significantly correlated (p < 0.01) with the reduction of retinal nerve fiber layer thickness of the temporal quadrant.

conclusionsMfVEP identifies abnormal neural conduction along the visual pathways in LHON, discriminating a predominant involvement of axons driving responses from the central retina when compared to those serving the mid-peripheral retina.

Indexed as

AdultAxonsEvoked Potentials, VisualFemaleHumansMaleMiddle AgedNeural ConductionOptic Atrophy, Hereditary, LeberRetinal DiseasesRetinal Ganglion CellsTomography, Optical CoherenceVisual AcuityVisual CortexVisual FieldsVisual Field Tests

Identifiers

PMID25773998
OpenAlexW2067294351

What OpenQuestion holds

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Registered trials

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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.