Evidence map›Paper›PMID 33827305›Full record

ArticleThe Journal of international medical research2021

Central macular thickness in patients with sickle cell disease and no signs of retinopathy: a cross-sectional study of Jordanian patients.

Nakhleh E Abu-Yaghi, Ahmad M AlNawaiseh, Issam M Khourshid, Tala J AlRawashdeh, Majd M Al Rawashdeh, Ayat M Zghoul, Abdallah N Shafagoj, Yousif A Alomairi, Sana' M Muhsen, SaifAldeen S AlRyalat

Open access · goldAbstract read
In one paragraph

Article in The Journal of international medical research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 44% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

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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

10 authors at 1 institution in 1 country.

Nakhleh E Abu-YaghiSpecial Surgery Department/Ophthalmology Division, School of Medicine, University of Jordan, Amman, Jordan.ORCID https://orcid.org/0000-0002-6509-4082
Ahmad M AlNawaisehSchool of Medicine, University of Jordan, Amman, Jordan.
Issam M KhourshidSchool of Medicine, University of Jordan, Amman, Jordan.
Tala J AlRawashdehSchool of Medicine, University of Jordan, Amman, Jordan.
Majd M Al RawashdehSchool of Medicine, University of Jordan, Amman, Jordan.
Ayat M ZghoulSchool of Medicine, University of Jordan, Amman, Jordan.
Abdallah N ShafagojSchool of Medicine, University of Jordan, Amman, Jordan.
Yousif A AlomairiSchool of Medicine, University of Jordan, Amman, Jordan.
Sana' M MuhsenSpecial Surgery Department/Ophthalmology Division, School of Medicine, University of Jordan, Amman, Jordan.
SaifAldeen S AlRyalatSpecial Surgery Department/Ophthalmology Division, School of Medicine, University of Jordan, Amman, Jordan.ORCID https://orcid.org/0000-0001-5588-9458
University of Jordan · JO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo measure central macular thickness in Jordanian patients with sickle cell disease who did not have retinopathy and compare the findings with age- and sex-matched controls using spectral domain optical coherence tomography (SDOCT).

methodsIn this cross-sectional study, participants underwent visual acuity testing, slit-lamp bio-microscopy, dilated ophthalmoscopy, and SDOCT imaging to measure central macular thickness. Macular quadrant measurements and thickness difference indexes (TDIs) were compared between groups.

resultsTwenty eyes with sickle cell disease and 20 control eyes were enrolled. The median visual acuity in both groups was 20/20. The mean macular thickness was significantly lower in eyes with sickle cell disease than in matched controls (mean difference, 22.15 ± 6.44 µm). Peripheral quadrants were all significantly thinner in eyes with sickle cell disease, especially in superior and temporal quadrants. TDIs were lower in eyes with sickle cell disease than in control eyes.

conclusionsEyes with sickle cell disease that had no clinical evidence of retinopathy exhibited significantly lower central macular thickness in all quadrants, compared with eyes in age- and sex-matched controls. SDOCT is a non-invasive imaging modality that can detect preclinical changes in eyes with sickle cell disease and can be used to screen and monitor the disease process.

Indexed as

Anemia, Sickle CellRetinal DiseasesCross-Sectional StudiesHumansProspective StudiesTomography, Optical Coherencecentral macular thicknesscross-sectional analysishemoglobin SSretinal diseaseretinopathySickle cell diseasespectral domain optical coherence tomographythickness difference index

Identifiers

PMID33827305
PMCPMC8040581
OpenAlexW3149382398

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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.