Evidence map›Paper›PMID 33420143›Full record

ArticleScientific reports2021

Structural and microvascular changes of the peripapillary retinal nerve fiber layer in Von Hippel-Lindau disease: an OCT and OCT angiography study.

Elisabetta Pilotto, Elisabetta Beatrice Nacci, Gilda De Mojà, Alfonso Massimiliano Ferrara, Raffaele Parrozzani, Davide Londei, Stefania Zovato, Edoardo Midena

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.0field-weighted citation impact, top 31% 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

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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

7 citing papers in PubMed, 14 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Elisabetta PilottoDepartment of Ophthalmology, University of Padova, Padova University Hospital ERN-EYE Center, Padova, Italy.
Elisabetta Beatrice NacciIRCCS, Fondazione G. B. Bietti, Via Livenza 3, 00198, Rome, Italy. beatricenac@libero.it.ORCID 0000-0002-2932-2340
Gilda De MojàDepartment of Ophthalmology, University of Padova, Padova University Hospital ERN-EYE Center, Padova, Italy.
Alfonso Massimiliano FerraraFamilial Tumor Unit, Veneto Institute of Oncology IOV-IRCCS, Padua, Padova, Italy.
Raffaele ParrozzaniDepartment of Ophthalmology, University of Padova, Padova University Hospital ERN-EYE Center, Padova, Italy.
Davide LondeiDepartment of Ophthalmology, University of Padova, Padova University Hospital ERN-EYE Center, Padova, Italy.
Stefania ZovatoFamilial Tumor Unit, Veneto Institute of Oncology IOV-IRCCS, Padua, Padova, Italy.
Edoardo MidenaDepartment of Ophthalmology, University of Padova, Padova University Hospital ERN-EYE Center, Padova, Italy.
University of Padua · ITIstituto Oncologico Veneto · ITFondazione G.B. Bietti · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Von Hippel-Lindau (VHL) disease is an autosomal dominant genetic disease caused by VHL gene mutation. Retinal hemangioblastomas (RH) are vascularized tumors and represent the main ocular manifestation of the disease. Histopathologically, RH are composed of capillary vessels and stromal cells, the neoplastic population of the lesion. The origin of these stromal cells remains controversial, even if they are hypothesized to be glial cells. The aim of the present study was to investigate neuronal and microvascular changes of the peripapillary retinal nerve fiber layer, in which glial cells, neurons and capillaries (the radial peripapillary capillary plexus) interact. VHL patients with or without peripheral RH were enrolled and compared to healthy controls. Mean peripapillary retinal nerve fiber layer (pRNFL) thickness was measured by means of optical coherence tomography (OCT). The following vascular parameters of the radial peripapillary capillary plexus were quantified using OCT angiography: Vessel Area Density,Vessel Length Fraction, Vessel Diameter Index and Fractal Dimension. One hundred and nine eyes of 61 patients, and 56 eyes of 28 controls were consecutively studied. Mean pRNFL was significantly thinner in VHL eyes without RH versus eyes with RH and controls. Mean pRNFL thickness did not differ between VHL eyes with RH and controls. All OCTA vascular parameters were reduced in VHL eyes with or without RH versus controls, with significative difference for Vessel Diameter Index. The same OCTA parameters did not significantly differ between VHL eyes with or without RH. In VHL eyes without RH, pRNFL thinning may be the consequence of impaired perfusion of the radial peripapillary capillary plexus, while the increase of pRNFL thickness in VHL eyes with RH may depend on possible activation and proliferation of the other RNFL resident cells, the glial cells.

Indexed as

AdultAngiographyCase-Control StudiesCross-Sectional StudiesFemaleHemangioblastomaHumansMaleMicrovascular DensityMicrovesselsMiddle AgedNerve FibersRetinal NeoplasmsRetinal VesselsTomography, Optical Coherencevon Hippel-Lindau Disease

Identifiers

PMID33420143
PMCPMC7794312
OpenAlexW3120913570

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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.