Evidence map›Paper›PMID 26697120›Full record

ArticleDiabetology & metabolic syndrome2015

Comparison between binocular indirect ophthalmoscopy and digital retinography for diabetic retinopathy screening: the multicenter Brazilian Type 1 Diabetes Study.

Fernando Korn Malerbi, Paulo Henrique Morales, Michel Eid Farah, Karla Rezende Guerra Drummond, Tessa Cerqueira Lemos Mattos, André Araújo Pinheiro, Felipe Mallmann, Ricardo Vessoni Perez, Franz Schubert Lopes Leal, Marília Brito Gomes and 2 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Diabetology & metabolic syndrome, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02927561 (Automated Diagnostic Test for Diabetic Retinopathy in Brazilian Mass Screening), which is not on this map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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.

NCT02927561 completednot on this map

Automated Diagnostic Test for Diabetic Retinopathy in Brazilian Mass Screening

TypeobservationalSponsorRetina Clinic, Sao Paulo, BrazilRan2015 to 2016Enrolled220ConditionsDiabetic RetinopathyArmsDiabetic Retinopathy screening
3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

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  10. A Systematic Review of Digital Ophthalmoscopes in Medicine.Clinical ophthalmology (Auckland, N.Z.) · 2023
    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

12 authors at 6 institutions in 1 country.

Fernando Korn MalerbiDepartments of Endocrinology and Ophthalmology, Federal University of São Paulo, São Paulo, Brazil.
Paulo Henrique MoralesDepartment of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil.
Michel Eid FarahDepartment of Ophthalmology, Federal University of São Paulo, São Paulo, Brazil.
Karla Rezende Guerra DrummondDepartment of Ophthalmology, Hospital Federal dos Servidores do Estado, Rio de Janeiro, Brazil.
Tessa Cerqueira Lemos MattosDepartment of Ophthalmology, Centro de Endocrinologia e Diabetes do Estado da Bahia, Salvador, Brazil.
André Araújo PinheiroDepartment of Ophthalmology, Hospital Regional de Taguatinga, Brasília, Brazil.
Felipe MallmannDepartment of Ophthalmology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Ricardo Vessoni PerezDepartment of Endocrinology, University of São Paulo, São Paulo, Brazil.
Franz Schubert Lopes LealDepartment of Ophthalmology, University of Campinas, Campinas, Brazil.
Marília Brito GomesDepartment of Endocrinology, State University of Rio de Janeiro, Rio de Janeiro, Brazil.
Sergio Atala DibDepartment of Endocrinology, Federal University of São Paulo, São Paulo, Brazil.
Brazilian Type 1 Diabetes Study Group
Universidade Federal de São Paulo · BRHospital Federal dos Servidores do Estado · BRUniversidade Federal do Rio Grande do Sul · BRUniversidade de São Paulo · BRUniversidade do Estado do Rio de Janeiro · BRUniversidade Estadual de Campinas (UNICAMP) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiabetic retinopathy is the main cause of preventable blindness in the economically active population in western countries. Diabetic retinopathy screening is effective in preventing blindness and can be performed through various diagnostic methods. Our objective is to compare binocular indirect ophthalmoscopy (BIO) to telemedicine protocols of digital retinography for diabetic retinopathy screening in a large and heterogenous type 1 diabetes population in a developing country.

methodsData from 1266 Type 1 Diabetes Mellitus patients from a Brazilian multicenter study were analyzed. Patients underwent BIO and digital retinography, non-mydriatic and mydriatic. Images were sent to a reading center in a telemedicine protocol. Agreement between the different methods was calculated with kappa statistic for diabetic retinopathy and maculopathy classification. Clinical outcome was either observation or referral to specialist.

resultsAgreement between BIO and mydriatic retinography was substantial (kappa 0.67-0.74) for diabetic retinopathy observation vs referral classification. Agreement was fair to moderate (kappa 0.24-0.45) between retinography and BIO for maculopathy. Poor mydriasis was the main obstacle to image reading and classification, especially on the non-mydriatic strategy, occurring in 11.9 % of right eyes and 16.9 % of left eyes.

conclusionMydriatic retinography showed a substantial agreement to BIO for diabetic retinopathy observation vs referral classification. A significant amount of information was lost on the non-mydriatic technique because of poor mydriasis. We recommend a telemedicine-based diabetic retinopathy screening strategy with digital mydriatic retinography, preferably with 2 fields, and advise against non-mydriatic retinography in developing countries.

Indexed as

BlindnessDiabetic retinopathyRetinographyScreeningTelemedicine

Identifiers

PMID26697120
PMCPMC4687381
OpenAlexW2260824816

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.