Evidence map›Paper›PMID 34588594›Full record

Observational studyScientific reports2021

Acute and subacute macular and peripapillary angiographic changes in choroidal and retinal blood flow post-intravitreal injections.

Nadhini Arumuganathan, Maximilian Robert Justus Wiest, Mario Damiano Toro, Timothy Hamann, Katrin Fasler, Sandrine Anne Zweifel

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

8 citing papers in PubMed, 12 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

6 authors at 2 institutions in 2 countries.

Nadhini ArumuganathanDepartment of Ophthalmology, University Hospital Zurich, 8091, Zurich, Switzerland.
Maximilian Robert Justus WiestDepartment of Ophthalmology, University Hospital Zurich, 8091, Zurich, Switzerland.
Mario Damiano ToroDepartment of Ophthalmology, University Hospital Zurich, 8091, Zurich, Switzerland.
Timothy HamannDepartment of Ophthalmology, University Hospital Zurich, 8091, Zurich, Switzerland.
Katrin FaslerDepartment of Ophthalmology, University Hospital Zurich, 8091, Zurich, Switzerland.
Sandrine Anne ZweifelDepartment of Ophthalmology, University Hospital Zurich, 8091, Zurich, Switzerland. sandrine.zweifel@usz.ch.
University Hospital of Zurich · CHUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Whether post injectional acute intraocular pressure (IOP) increase is associated with decreased peripapillary and macular perfusion is still under debate. Here, we investigated early changes in the choroidal and retinal blood flow using OCTA imaging in a cohort of patients undergoing anti-VEGF intravitreal injections (IVI) for macular edema following retinal vein occlusion and diabetic retinopathy. In this prospective single-center, observational study, the pre- and post-IVI changes in retinal perfusion were examined via assessment of vessel length density (VLD) and vessel density (VD) in deep and superficial capillary segmentations (DCP and SCP), foveal avascular zone (FAZ) in SCP, as well as flow signal deficits in the choriocapillaris segmentation. Mean IOP significantly changed over the study course (p = 0.000; ANOVA). Measurements at 5 min post-IVI (33.48 ± 10.84 mmHg) differed significantly from baseline (17.26 ± 2.41 mmHg, p = 0.000), while measurements from one day, one week, and one-month post-IVI did not (p = 0.907, p = 1.000 and p = 1.000 respectively). In comparison to baseline, no changes in OCTA parameters, including FAZ, VD, VLD, and FV, were detected 5 min post-IVI. No significant alterations in OCTA parameters were observed during study course. Increased IOP spikes were detected post-IVI; however, no potential permanent ischemic retinal damage was suspected.

Indexed as

AdultAgedAged, 80 and overAngiogenesis InhibitorsChoroidCohort StudiesFemaleHumansIntravitreal InjectionsMacular EdemaMaleMiddle AgedProspective StudiesRetinal Vein OcclusionVascular Endothelial Growth Factor AAngiogenesis InhibitorsVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID34588594
PMCPMC8481476
OpenAlexW3203403277

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.