Evidence map›Paper›PMID 32845370›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2021

Descemet membrane endothelial keratoplasty (DMEK): clinical results of precut versus surgeon-cut grafts.

Doreen Koechel, Nicola Hofmann, Jan D Unterlauft, Peter Wiedemann, Christian Girbardt

Abstract read
In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
–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

7 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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

5 authors.

Doreen KoechelDept. of Ophthalmology, University Hospital Leipzig, Liebigstraße 10-14, 04103, Leipzig, Germany. doreen_kochel@gmx.de.
Nicola HofmannGerman Society for Tissue Transplantation, Feodor-Lynen-Straße 21, 30625, Hannover, Germany.
Jan D UnterlauftDept. of Ophthalmology, University Hospital Leipzig, Liebigstraße 10-14, 04103, Leipzig, Germany.
Peter WiedemannDept. of Ophthalmology, University Hospital Leipzig, Liebigstraße 10-14, 04103, Leipzig, Germany.
Christian GirbardtDept. of Ophthalmology, University Hospital Leipzig, Liebigstraße 10-14, 04103, Leipzig, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aims to investigate possible differences in clinical outcomes between precut and surgeon-cut grafts for Descemet membrane endothelial keratoplasty (DMEK).

methods142 consecutive patients who underwent DMEK were included in the study. 44 patients received precut tissues, and 98 patients received surgeon-cut tissues. Precut grafts were allocated to the patient by the German Society for Tissue Transplantation if available. We compared the outcomes of both groups for changes in visual acuity, central corneal thickness, endothelial cell density, re-bubbling rate, and graft failure rate.

resultsPatients who received precut tissues experienced similar increase in visual acuity (median change 0.4 logMAR) and decrease of corneal swelling (median change 132 μm) compared with those who received surgeon-cut tissues (median VA change 0.3 logMAR, p = 0.55, CCT change 118 μm, p = 0.63). There was no statistical difference in endothelial cell density (1436 vs. 1569 cells/mm

conclusionBoth methods lead to comparable results for visual acuity, corneal deswelling, endothelial cell density, and re-bubbling rate. A previously described higher graft failure rate for precut tissues could not be confirmed in our study. Thus, we do not see medical reasons against the use of precut tissues. There are several advantages of precut DMEK tissues over surgeon-cut tissues, especially the prevention of graft loss during preparation in the operating theater.

Indexed as

Descemet Stripping Endothelial KeratoplastyFuchs' Endothelial DystrophySurgeonsCell CountCorneaDescemet MembraneEndothelium, CornealHumansRetrospective StudiesVisual AcuityCorneal transplantationDescemet membrane endothelial keratoplastyEye bankPrecut tissue

Identifiers

PMID32845370
PMCPMC7790790

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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.