Evidence map›Paper›PMID 34348344›Full record

ArticleOphthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde2022

The Effect of Syringe-Filling Technique on the Risk for Endophthalmitis after Intravitreal Injection of Anti-VEGF Agents.

Maya Finkelstein, Gabriel Katz, Dinah Zur, Alexander Rubowitz, Elad Moisseiev

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Article in Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.5field-weighted citation impact, top 19% 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, 13 citations in OpenAlex.

  1. Endophthalmitis rates following intravitreal injection of aflibercept using a prefilled syringe - a multicenter study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  2. Systemic and ocular complications related to intravitreal administration of anti-VEGF agents.Medical hypothesis, discovery & innovation ophthalmology journal · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Maya FinkelsteinDepartment of Ophthalmology, Meir Medical Center, Kfar Saba, Israel.
Gabriel KatzDepartment of Ophthalmology, Sheba Medical Center, Ramat Gan, Israel.
Dinah ZurSackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
Alexander RubowitzDepartment of Ophthalmology, Meir Medical Center, Kfar Saba, Israel.
Elad MoisseievDepartment of Ophthalmology, Meir Medical Center, Kfar Saba, Israel.
Tel Aviv University · ILMeir Medical Center · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to compare the risk for post-injection endophthalmitis between different anti-vascular endothelial growth factor (VEGF) agents and syringe preparation techniques.

methodsA retrospective study of anti-VEGF injections performed in 3 large ophthalmology departments between 2013 and 2019 was conducted. Injections were categorized according to the drug and the syringe-filling technique - prefilling by a hospital pharmacy, prefilling by a good manufacturing practice (GMP) pharmacy, self-drawing from the vial by the injecting physician, and use of a prefilled syringe. Cases of endophthalmitis were identified, and their rates were analyzed.

resultsA total of 197,402 injections were included, and 53 cases of endophthalmitis were identified (0.027% risk). The risk of endophthalmitis following injections with syringes that were prefilled by GMP pharmacies or the manufacturers was significantly lower than that following injections which were self-drawn by the physician (0.019% vs. 0.055%, p < 0.0001). For ranibizumab, risk of endophthalmitis decreased since it became available in a prefilled syringe (0.054% vs. 0.014%, p = 0.066), bordering on statistical significance.

conclusionsThe syringe-filling technique is an important factor determining risk of post-injection endophthalmitis. Use of GMP-grade prefilling by professional pharmacies or the manufacturers significantly reduces this risk and should be the technique of choice for all drugs administered by intravitreal injection.

Indexed as

EndophthalmitisSyringesAngiogenesis InhibitorsBevacizumabHumansIntravitreal InjectionsRanibizumabRetrospective StudiesVascular Endothelial Growth Factor AAngiogenesis InhibitorsBevacizumabRanibizumabVascular Endothelial Growth Factor AAfliberceptAnti-vascular endothelial growth factorBevacizumabEndophthalmitisFillingPrefilled syringeRanibizumabSyringe

Identifiers

PMID34348344
OpenAlexW3186066952

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.