Evidence map›Paper›PMID 31169745›Full record

SynthesisMedicine2019

Hypothermic machine perfusion reduces the incidences of early allograft dysfunction and biliary complications and improves 1-year graft survival after human liver transplantation: A meta-analysis.

Yili Zhang, Yangmin Zhang, Mei Zhang, Zhenhua Ma, Shengli Wu

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 5 pooled it
4.0field-weighted citation impact, top 6% 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

14 citing papers in PubMed, 5 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Machine perfusion in liver transplantation.The Cochrane database of systematic reviews · 2023
    Pooled it
  3. Pooled it
  4. Hospital-Based Health Technology Assessment of Machine Perfusion Systems for Human Liver Transplantation.Transplant international : official journal of the European Society for Organ Transplantation · 2022
    Pooled it
  5. Pooled it
  6. Hypothermic oxygenated perfusion in extended criteria donor liver transplantation-A randomized clinical trial.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2022
    Trial
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Research progress on hepatic machine perfusion.International journal of medical sciences · 2021
    Review
  13. Therapeutics administered duringWorld journal of transplantation · 2020
    Review
  14. Article
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 2 institutions in 1 country.

Yili ZhangDepartment of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University.
Yangmin ZhangDepartment of Blood Transfusion, Xi'an Central Hospital.
Mei ZhangDepartment of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China.
Zhenhua MaDepartment of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China.
Shengli WuDepartment of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, P.R. China.
First Affiliated Hospital of Xi'an Jiaotong University · CNXian Central Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe worldwide organ shortage continues to be the main limitation of liver transplantation. To bridge the gap between the demand and supply of liver grafts, it becomes necessary to use extended criteria donor livers for transplantation. Hypothermic machine perfusion (HMP) is designed to improve the quality of preserved organs before implantation. In clinical liver transplantation, HMP is still in its infancy.

methodsA systematic search of the PubMed, EMBASE, Springer, and Cochrane Library databases was performed to identify studies comparing the outcomes in patients with HMP versus static cold storage (SCS) of liver grafts. The parameters analyzed included the incidences of primary nonfunction (PNF), early allograft dysfunction (EAD), vascular complications, biliary complications, length of hospital stay, and 1-year graft survival.

resultsA total of 6 studies qualified for the review, involving 144 and 178 liver grafts with HMP or SCS preservation, respectively. The incidences of EAD and biliary complications were significantly reduced with an odds ratio (OR) of 0.36 (95% confidence interval [CI] 0.17-0.77, P = .008) and 0.47 (95% CI 0.28-0.76, P = .003), respectively, and 1-year graft survival was significantly increased with an OR of 2.19 (95% CI 1.14-4.20, P = .02) in HMP preservation compared to SCS. However, there was no difference in the incidence of PNF (OR 0.30, 95% CI 0.06-1.47, P = .14), vascular complications (OR 0.69, 95% CI 0.29-1.66, P = .41), and the length of hospital stay (mean difference -0.30, 95% CI -4.10 to 3.50, P = .88) between HMP and SCS preservation.

conclusionsHMP was associated with a reduced incidence of EAD and biliary complications, as well as an increased 1-year graft survival, but it was not associated with the incidence of PNF, vascular complications, and the length of hospital stay.

Indexed as

AdultAllograftsBile Duct DiseasesFemaleGraft SurvivalHumansHypothermia, InducedIncidenceLiverLiver TransplantationMaleMiddle AgedOrgan PreservationPerfusionPostoperative ComplicationsPrimary Graft Dysfunction

Identifiers

PMID31169745
PMCPMC6571373
OpenAlexW2991545089

What OpenQuestion holds

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LicenceCC BY
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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.