Evidence map›Paper›PMID 27718006›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2017

Graft dislocation and graft failure following Descemet membrane endothelial keratoplasty (DMEK) using precut tissue: a retrospective cohort study.

Sonja Heinzelmann, Daniel Böhringer, Philipp Eberwein, Thomas Reinhard, Philip Maier

Abstract read
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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 7% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Descemet membrane endothelial keratoplasty (DMEK): clinical results of precut versus surgeon-cut grafts.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021
    Article
  6. Article
  7. [Descemet membrane endothelial keratoplasty DMEK - Donor and recipient step by step].Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft · 2020
    Review
  8. Article
  9. Article
  10. [Pathogenesis and diagnostic evaluation of Fuchs' endothelial corneal dystrophy].Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft · 2019
    Review
  11. Negative impact of dextran in organ culture media for pre-stripped tissue preservation on DMEK (Descemet membrane endothelial keratoplasty) outcome.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2018
    Article
  12. Observational
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 at 1 institution in 1 country.

Sonja HeinzelmannEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Daniel BöhringerEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Philipp EberweinEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Thomas ReinhardEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Philip MaierEye Center, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany. philip.maier@uniklinik-freiburg.de.ORCID http://orcid.org/0000-0003-4549-3585
University of Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlthough the functional results following DMEK are better than after DSAEK, DSAEK still seems to be the standard procedure, as surgeons fear losing grafts during DMEK graft preparation. Therefore, eye banks offer precut DMEK grafts for direct use by the surgeon. Here, we analysed the functional results and complication rates for a precut technique compared to fresh preparations.

methodsWe retrospectively compared 453 standard to 11 precut (1-2 days before surgery) DMEK cases. Precut preparations did not differ from the standard preparation, except that the preparation was stopped after trephination with the graft still attached in a small central area. The preparation had to be completed before surgery by peeling off the centrally attached part of the graft. This technique was first tested in an experimental series of 14 grafts, which were unsuitable for transplantation. All surgeries were performed in the same standardized way.

resultsThere was no significant endothelial cell loss during the storage period following precut preparation. We found a statistically significantly higher endothelial cell loss and graft failure rate for the precut grafts.

conclusionBecause of the statistically significant higher graft failure rate in the precut group, we stopped using this technique, so the numbers in this retrospective case series are small. The higher graft failure rate may be explained by (ultra)structural changes in the DMEK graft (e.g. accumulation of dextran) during the second storage period. Therefore, careful evaluation is recommended before using precut DMEK grafts stored in dextran containing media in order to avoid early primary graft failures.

Indexed as

Eye BanksTissue DonorsVisual AcuityDescemet Stripping Endothelial KeratoplastyFollow-Up StudiesFuchs' Endothelial DystrophyGermanyGraft RejectionGraft SurvivalHumansIncidenceMiddle AgedRetrospective StudiesCorneaDMEKEndothelial keratoplasty

Identifiers

PMID27718006
OpenAlexW2529654983

What OpenQuestion holds

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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.