Evidence map›Paper›PMID 31303746›Full record

ArticleClinical ophthalmology (Auckland, N.Z.)2019

Effectiveness of prophylactic intravitreal bevacizumab injection to proliferative diabetic retinopathy patients with elevated preoperative intraocular VEGF in preventing complications after vitrectomy.

Kinya Tsubota, Yoshihiko Usui, Yoshihiro Wakabayashi, Jun Suzuki, Shunichiro Ueda, Hiroshi Goto

Open access · goldAbstract read
In one paragraph

Article in Clinical ophthalmology (Auckland, N.Z.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-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

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

6 citing papers in PubMed, 6 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Review
  5. Review
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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 1 institution in 1 country.

Kinya TsubotaDepartment of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan.ORCID 0000-0002-7680-3745
Yoshihiko UsuiDepartment of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan.
Yoshihiro WakabayashiDepartment of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan.
Jun SuzukiDepartment of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan.
Shunichiro UedaDepartment of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan.
Hiroshi GotoDepartment of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan.
Tokyo Medical University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to elucidate the effects of intravitreal bevacizumab (IVB) injections for the prevention of post-vitrectomy complications in proliferative diabetic retinopathy (PDR) patients with elevated vitreous vascular endothelial growth factor (VEGF) concentration.

designProspective case series.

methodsThirty-three patients (42 eyes) with PDR who underwent primary vitrectomy in the Department of Ophthalmology, Tokyo Medical University Hospital were studied. We measured VEGF concentrations in vitreous humor collected at the time of vitrectomy using ELISA. IVB injections were performed after vitrectomy in patients with vitreous VEGF levels exceeding 1,000 pg/mL. New bleeding occurring within 1 month of vitrectomy was defined as early vitreous hemorrhage (VH).

main outcome measureThe incidence of complications after vitrectomy including postoperative early VH.

resultsIVB injections were administered to 11 eyes (26%) with vitreous VEGF concentrations exceeding 1,000 pg/mL. None of the 11 eyes that received an IVB injection developed early VH. Among 31 eyes (74%) with vitreous VEGF concentrations lower than 1,000 pg/mL, two eyes (6%) developed early VH after vitrectomy.

conclusionsProphylactic IVB injections administered to patients with elevated preoperative intraocular VEGF concentrations were effective in preventing post-vitrectomy early VH.

Indexed as

diabetic retinopathyintravitreal bevacizumab injectionVEGFvitreous hemorrhage

Identifiers

PMID31303746
PMCPMC6605036
OpenAlexW2955403147

What OpenQuestion holds

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LicenceCC BY-NC
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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.