Evidence map›Paper›PMID 31090594›Full record

ArticleCornea2019

Safety of Long-Term Storage and Shipping of Prestripped, Prestained, and Preloaded Descemet Membrane Endothelial Keratoplasty Tissue.

Jason Hooton, Kyeong Hwan Kim, Stephen I Lentz, Nicholas Hicks, Kayla Jones, Kristen McCoy, Shahzad I Mian

Open access · greenAbstract read
In one paragraph

Article in Cornea, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
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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

7 authors at 1 institution in 1 country.

Jason HootonDepartment of Ophthalmology and Visual Sciences, W. K. Kellogg Eye Center, University of Michigan, Ann Arbor, MI.
Kyeong Hwan KimDepartment of Ophthalmology and Visual Sciences, W. K. Kellogg Eye Center, University of Michigan, Ann Arbor, MI.
Stephen I LentzDepartment of Internal Medicine, Division of Metabolism, Endocrinology and Diabetes, University of Michigan, Ann Arbor, MI.
Nicholas HicksEversight Michigan, Ann Arbor, MI.
Kayla JonesEversight Michigan, Ann Arbor, MI.
Kristen McCoyEversight Michigan, Ann Arbor, MI.
Shahzad I MianDepartment of Ophthalmology and Visual Sciences, W. K. Kellogg Eye Center, University of Michigan, Ann Arbor, MI.
University of Michigan–Ann Arbor · US

Funding

PUBLIC HEALTH DEMONSTRATIONP60DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MYERS, MARTIN G · 1985 to 2012
$26.5M
Regional Pilot And Feasibility Study Grants ProgramP30DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Scott Soleimanpour · 2013 to 2026
$24.3M
VIVARIUM MODULEP30EY007003 · NEI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI David Antonetti · 1987 to 2026
$17.6M
E75 IN THE DEVELOPING DROSOPHILA EYEF31EY007003 · NEI · YALE UNIVERSITY · PI SHILTON, ALYCIA N · 1999 to 2001
$14k
NEI NIH HHS F31 EY007003NEI NIH HHS P30 EY007003NIDDK NIH HHS P30 DK020572NIDDK NIH HHS P60 DK020572
6 · The paper itself

Abstract

purposeThe purpose of this study was to determine the safety of long-term storage and shipping of prestripped, prestained, and preloaded Descemet membrane endothelial keratoplasty (pDMEK) grafts.

methodsA total of 33 cadaveric corneas were prestripped, prestained, and preloaded using modified Jones tube injectors as pDMEK. The corneas were masked to groups that were prepared <9 hours (control), 48 hours, and 72 hours before unloading and analysis. The 48- and 72-hour tissues were shipped by airfreight on each day before arrival to simulate domestic and international shipping. The corneas were then stained using Calcein AM vital dye (Molecular Probes, Eugene, OR) and imaged using an inverted confocal microscope. Primary outcome measures were endothelial cell loss (ECL, %) and sustainability of staining. MetaMorph software (Molecular Devices, Downingtown, PA) was used to quantify ECL, and staining was evaluated subjectively using all-or-none rating.

resultsThere was no difference in the mean ECL for the control, 48-hour, and 72-hour groups, which were 25.1% ± 8.8%, 26.4% ± 17.5%, and 19.2% ± 11.5%, respectively (P = 0.45; Kruskal-Wallis test). In all tissues of each group, no loss of staining was identified at each time point of analysis.

conclusionsECL in pDMEK tissue prepared 48 and 72 hours in advance and shipped using standard methods is similar to that in pDMEK tissue prepared on the same day. These findings support the safety of domestic and international shipping of pDMEK grafts.

Indexed as

Tissue and Organ ProcurementAgedCell CountCell SurvivalCorneal Endothelial Cell LossDescemet Stripping Endothelial KeratoplastyEndothelium, CornealHumansMicroscopy, ConfocalMiddle AgedOrgan PreservationTissue and Organ HarvestingTissue DonorsTransportation

Identifiers

PMID31090594
PMCPMC7315383
OpenAlexW2945921664

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.