Evidence map›Paper›PMID 34003874›Full record

ArticlePloS one2021

Prolonged ex-vivo normothermic kidney perfusion: The impact of perfusate composition.

Merel B F Pool, Tim L Hamelink, Harry van Goor, Marius C van den Heuvel, Henri G D Leuvenink, Cyril Moers

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% 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

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

  1. Perfusate Composition and Duration ofTransplant international : official journal of the European Society for Organ Transplantation · 2022
    Pooled it
  2. Article
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  7. Review
  8. Review
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  15. Article
  16. Oxygen carriers affect kidney immunogenicity duringFrontiers in transplantation · 2023
    Article
  17. 48 h Normothermic Machine Perfusion With Urine Recirculation for Discarded Human Kidney Grafts.Transplant international : official journal of the European Society for Organ Transplantation · 2023
    Article
  18. Review
  19. Frontiers in medicine · 2021
    Review
  20. Review
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

6 authors at 1 institution in 1 country.

Merel B F PoolDepartment of Surgery-Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.ORCID 0000-0003-4914-8981
Tim L HamelinkDepartment of Surgery-Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Harry van GoorDepartment of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Marius C van den HeuvelDepartment of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Henri G D LeuveninkDepartment of Surgery-Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Cyril MoersDepartment of Surgery-Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
University Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Normothermic machine perfusion (NMP) of donor kidneys provides the opportunity for improved graft preservation and objective pre-transplant ex-vivo organ assessment. Currently, a multitude of perfusion solutions exist for renal NMP. This study aimed to evaluate four different perfusion solutions side-by-side and determine the influence of different perfusate compositions on measured renal perfusion parameters. Porcine kidneys and blood were obtained from a slaughterhouse. Kidneys underwent NMP at 37°C for 7 hours, with 4 different perfusion solutions (n = 5 per group). Group 1 consisted of red blood cells (RBCs) and a perfusion solution based on Williams' Medium E. Group 2 consisted of RBCs, albumin and a balanced electrolyte composition. Group 3 contained RBCs and a medium based on a British clinical NMP solution. Group 4 contained RBCs and a medium used in 24-hour perfusion experiments. NMP flow patterns for solutions 1 and 2 were similar, solutions 3 and 4 showed lower but more stable flow rates. Thiobarbituric acid reactive substances were significantly higher in solution 1 and 4 compared to the other groups. Levels of injury marker N-acetyl-β-D glucosaminidase were significantly lower in solution 2 in comparison with solution 3 and 4. This study illustrates that the perfusate composition during NMP significantly impacts the measured perfusion and injury parameters and thus affects the interpretation of potential viability markers. Further research is required to investigate the individual influences of principal perfusate components to determine the most optimal conditions during NMP and eventually develop universal organ assessment criteria.

Indexed as

Kidney TransplantationOrgan PreservationPerfusionAnimalsKidneySwine

Identifiers

PMID34003874
PMCPMC8130974
OpenAlexW3161177524

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.