Evidence map›Paper›PMID 42752723›Full record

SynthesisActa cirurgica brasileira2026

Normothermic machine perfusion versus static cold storage for liver transplantation: a systematic review and meta-analysis.

Miguel Lucas Silva Valente, Angela Claudia Paixão Soares de Magalhães, Hercules Magalhães Olivense do Carmo, Donizete Dalto Junior, Bryan de Sousa Dorea, Marina Marcon Zamban

Abstract readSystematic ReviewMeta-AnalysisComparative Study
In one paragraph

Synthesis in Acta cirurgica brasileira, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Miguel Lucas Silva ValenteUniversidade Federal do Acre - Rio Branco (AC), Brazil.ORCID http://orcid.org/0009-0009-9434-6136
Angela Claudia Paixão Soares de MagalhãesUniversidade Federal do Acre - Rio Branco (AC), Brazil.ORCID http://orcid.org/0000-0002-4387-0626
Hercules Magalhães Olivense do CarmoUniversidade Federal do Acre - Rio Branco (AC), Brazil.ORCID http://orcid.org/0000-0002-4334-1521
Donizete Dalto JuniorFundação Hospital Estadual do Acre - Rio Branco (AC), Brazil.ORCID http://orcid.org/0000-0003-1308-0452
Bryan de Sousa DoreaFundação Hospital Estadual do Acre - Rio Branco (AC), Brazil.ORCID http://orcid.org/0009-0004-4146-0078
Marina Marcon ZambanUniversidade Luterana do Brasil - Canoas (RS), Brazil.ORCID http://orcid.org/0000-0003-4155-7350

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare the effectiveness of normothermic machine perfusion (NMP) with static cold storage (SCS) in preserving transplantable livers, focusing on early postoperative complications.

methodsA PRISMA 2020-compliant search of PubMed, Embase, Scopus, Cochrane Library and Web of Science identified comparative studies of NMP versus SCS. Five studies met the criteria (two randomized controlled trials, and three observational cohorts; 630 recipients). Random-effects meta-analysis was performed in RStudio, reporting risk ratio (RR), 95% confidence interval (95%CI), p-value and heterogeneity (I2).

resultsNMP significantly lowered the incidence of composite early postoperative complications versus SCS (RR = 0.60; 95%CI 0.47-0.75; p < 0.0001), corresponding to a 40% relative risk reduction. Between-study heterogeneity was negligible (I2 = 0 %). Subgroup analyses revealed no significant effect modification by study design (p = 0.75), donation after circulatory death proportion (p = 0.91), preservation duration (p = 0.51), donor age (p = 0.59) or perfusion technique (p = 0.37).

conclusionNMP demonstrates clinically superior graft preservation compared with SCS, consistently reducing early complications after liver transplantation. Adoption of NMP may expand the use of marginal organs and improve post-transplant outcomes.

Indexed as

Liver TransplantationOrgan PreservationPerfusionGraft SurvivalHumansPostoperative ComplicationsTime Factors

Identifiers

PMID42752723
PMCPMC13568593

What OpenQuestion holds

Textmetadata
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.