Evidence map›Paper›PMID 40473274›Full record

ArticleBMJ open ophthalmology2025

Clinical characteristics and treatment response of treatment requiring retinopathy of prematurity (ROP) in Big Premature Infants in Turkiye: BIG-ROP Study Group Report No 2 (BIG-ROP STUDY).

Huseyin Baran Ozdemir, Sengul Ozdek, Zuhal Ozen Tunay, Sadik Etka Bayramoglu, Emine Alyamac Sukgen, Nur Kır, BIG-ROP Study Group

Abstract readMulticenter Study
In one paragraph

Article in BMJ open ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Beyond gestational age and birth weight: the importance of risk-adapted ROP screening in African settings.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  2. 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

7 authors.

Huseyin Baran OzdemirDepartment of Ophthalmology, Gazi University Faculty of Medicine, Ankara, Turkey huseyinbaranozdemir@gazi.edu.tr.ORCID 0000-0002-5585-253X
Sengul OzdekDepartment of Ophthalmology, Gazi University Faculty of Medicine, Ankara, Turkey.
Zuhal Ozen TunayDepartment of Ophthalmology, TOBB Ekonomi ve Teknoloji Üniversitesi Tip Fakültesi, Ankara, Turkey.ORCID 0000-0002-2133-8970
Sadik Etka BayramogluDepartment of Ophthalmology, İstanbul Kanuni Sultan Süleyman Eğitim ve Araştırma Hastanesi, Istanbul, Turkey.
Emine Alyamac SukgenDepartment of Ophthalmology, TC Saglik Bakanligi Adana Sehir Egitim ve Arastirma Hastanesi, Adana, Turkey.
Nur KırDepartment of Ophthalmology, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey.
BIG-ROP Study Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study evaluated the clinical characteristics and treatment outcomes of bigger premature infants treated for retinopathy of prematurity (ROP).

methodsA retrospective, multicentre study analysed data from 33 ROP centres in Türkiye. Infants with gestational ages (GA) of 32-37 weeks and birth weights (BW) >1500 g who required ROP treatment were included. Patient demographics, clinical details, treatments, responses and complications were recorded. Descriptive statistics were calculated after excluding cases with missing or erroneous data.

resultsThe study included 365 eyes of 365 infants. The average GA at birth was 33±1 weeks, with a mean BW of 1896±316 g. Of these, 83.6% had type 1 ROP, and 16.4% had aggressive ROP (A-ROP). Treatment-requiring ROP (TR-ROP) occurred at an average postmenstrual age of 39.0±4.6 weeks. Among 170 infants with TR-ROP at their first exam, 81.2% were screened at 4 weeks postpartum. Reactivation of ROP was observed in 5.4% of the primary laser photocoagulation (LPC) group and 23.9% of the primary anti-vascular endothelial growth factor (VEGF) group (p<0.001). Reactivation and progression to stage 4-5 were more frequent in A-ROP cases (p=0.012; p=0.008). The need for additional treatment was significantly higher in cases of A-ROP, zone 1 disease or stage 4-5 disease (p<0.001). Anti-VEGF therapy demonstrated superior single-treatment success rates in A-ROP eyes compared with laser LPC (85.7% vs 60%, p=0.03). Infants requiring additional treatments also had higher rates of respiratory distress syndrome (RDS), maternal premature rupture of membranes (PROM) and non-ophthalmological surgical interventions (p<0.05).

conclusionBigger premature infants in low and middle-income countries should be screened earlier than 4 weeks after birth. A-ROP, zone 1 disease and stage 4-5 disease have higher reactivation risks. Primary anti-VEGF therapy was associated with a greater need for retreatment. Maternal PROM, RDS and surgical interventions also increase retreatment risk. Limitations include retrospective design and lack of smaller preterm comparisons, potentially limiting generalisability.

Indexed as

Angiogenesis InhibitorsLaser CoagulationRetinopathy of PrematurityBevacizumabBirth WeightFemaleFollow-Up StudiesGestational AgeHumansInfant, NewbornInfant, PrematureIntravitreal InjectionsMaleRetrospective StudiesTreatment OutcomeTurkeyAngiogenesis InhibitorsBevacizumabVascular Endothelial Growth Factor AVEGFA protein, humanRetinaTreatment LasersTreatment otherTreatment Surgery

Identifiers

PMID40473274
PMCPMC12142119

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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.