Evidence map›Paper›PMID 35145975›Full record

ArticleFrontiers in medicine2021

Treat-and-Extend vs. Pro Re Nata Regimen of Ranibizumab for Diabetic Macular Edema-A Two-Year Matched Comparative Study.

Tso-Ting Lai, Ta-Ching Chen, Chang-Hao Yang, Chung-May Yang, Tzyy-Chang Ho, Yi-Ting Hsieh

Open access · goldAbstract read
In one paragraph

Article in Frontiers in medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

14 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
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  5. Nonadherence to anti-VEGF intravitreal injections in patients with diabetic macular edema : The names of the authors.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Review
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  10. Biomarkers determining treatment interval of diabetic macular edema after initial resolution by anti-vascular endothelial growth factor.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  11. Article
  12. Real-Life Value of the OdysightJournal of clinical medicine · 2022
    Article
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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 1 country.

Tso-Ting LaiDepartment of Ophthalmology, National Taiwan University Hospital, Taipei, Taiwan.
Ta-Ching ChenDepartment of Ophthalmology, National Taiwan University Hospital, Taipei, Taiwan.
Chang-Hao YangDepartment of Ophthalmology, National Taiwan University Hospital, Taipei, Taiwan.
Chung-May YangDepartment of Ophthalmology, National Taiwan University Hospital, Taipei, Taiwan.
Tzyy-Chang HoDepartment of Ophthalmology, National Taiwan University Hospital, Taipei, Taiwan.
Yi-Ting HsiehDepartment of Ophthalmology, National Taiwan University Hospital, Taipei, Taiwan.
National Taiwan University Hospital · TWNational Yang Ming Chiao Tung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare 2-year treatment outcomes of ranibizumab using treat-and-extend (T&E) or pro re nata (PRN) regimens for diabetic macular edema (DME) in clinical settings.

methodsWe retrospectively enrolled 34 patients (34 eyes) with DME treated with ranibizumab using the T&E regimen, and 34 patients (34 eyes) treated with ranibizumab using the PRN regimen and matched to cases in the treat-and-extend group by baseline best-corrected visual acuity (BCVA) and central foveal thickness (CFT). BCVA and CFT changes, number of injections and recurrence of macular edema over 2 years were compared between the groups.

resultsThe average BCVA gain in the T&E and PRN groups was 16.2 and 7.6 ETDRS letters at 2 years (

conclusionsAfter 2-year ranibizumab treatment for DME, better visual and anatomical improvement and less recurrence of macular edema were achieved in the T&E group, with more injections administered.

Indexed as

anti-VEGF (vascular endothelial growth factor)diabetic macular edemapro re nata (PRN)ranibizumabtreat-and-extend (T&E)

Identifiers

PMID35145975
PMCPMC8821911
OpenAlexW4206944795

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.