Evidence map›Paper›PMID 41716429›Full record

ArticleHealth science reports2026

Effects of COVID-19 on Corneal Transplants Across the Five Regions of Brazil and Trends in Post-Pandemic Recovery-A Cross-Sectional Study.

Josue Geraldo Lessa, Amélia Soares de Melo, Leandro Vassuler Baldon, Bernardo G L Carvalho, Nathalia Sernizon Guimaraes, Aleida N Soares, Bruno Lovaglio Cançado Trindade, Fernanda Ludolf

Abstract read
In one paragraph

Article in Health science reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

8 authors.

Josue Geraldo LessaMestrado em Ciências da Saúde, Faculdade Ciências Médicas de Minas Gerais (FCMMG) Belo Horizonte Minas Gerais Brazil.
Amélia Soares de MeloMedical School, Faculdade Ciências Médicas de Minas Gerais (FCMMG) Belo Horizonte Minas Gerais Brazil.
Leandro Vassuler BaldonInstituto de Olhos Ciências Médicas (IOCM), Faculdade Ciências Médicas de Minas Gerais (FCMMG) Belo Horizonte Minas Gerais Brazil.
Bernardo G L CarvalhoInstituto de Olhos Ciências Médicas (IOCM), Faculdade Ciências Médicas de Minas Gerais (FCMMG) Belo Horizonte Minas Gerais Brazil.
Nathalia Sernizon GuimaraesDepartamento de Nutrição, Escola de Enfermagem Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil.
Aleida N SoaresMestrado em Ciências da Saúde, Faculdade Ciências Médicas de Minas Gerais (FCMMG) Belo Horizonte Minas Gerais Brazil.
Bruno Lovaglio Cançado TrindadeMestrado em Ciências da Saúde, Faculdade Ciências Médicas de Minas Gerais (FCMMG) Belo Horizonte Minas Gerais Brazil.
Fernanda LudolfMestrado em Ciências da Saúde, Faculdade Ciências Médicas de Minas Gerais (FCMMG) Belo Horizonte Minas Gerais Brazil.ORCID https://orcid.org/0000-0003-3357-9816

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and Aims: The COVID-19 pandemic significantly disrupted global eye health services, including corneal transplants. This study evaluates the pandemic's long-term impact on corneal transplantation across Brazil's five regions, highlighting national and regional recovery trends. Method: Monthly corneal transplantation data were obtained from the Brazilian Health Information System (DATASUS) and analyzed across four periods: pre-pandemic (January 2018 to February 2020), lockdown (March 2020 to December 2020), vaccination (January 2021 to March 2022), and post-pandemic (April 2022 to June 2024) across the five Brazilian regions. Results: Transplants dropped by 54% in 2020, with the South, Northeast, and Southeast most affected. In 2021, as vaccination efforts advanced, transplants recovered by 86%, particularly in the South, Northeast, and Southeast. The upward trend continued in 2022, with an 18% increase nationwide, especially in the North and South. However, in 2023, there was a slight overall decrease of 5%, with declines in the North, Southeast, and Midwest, while the South and Northeast saw minor increases. Conclusion: Corneal transplantation in Brazil has shown signs of recovery, but a backlog remains, especially in underserved regions. This study underscores the need for continued monitoring and policy adjustments to address post-pandemic demand and promote equitable access to eye care.

Indexed as

Brazilcornea transplantationCOVID‐19pandemiarecoverySARS‐CoV‐2

Identifiers

PMID41716429
PMCPMC12914147

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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.