Evidence map›Paper›PMID 35240723›Full record

SynthesisClinical transplantation2022

What is the optimal management of thromboprophylaxis after liver transplantation regarding prevention of bleeding, hepatic artery, or portal vein thrombosis? A systematic review of the literature and expert panel recommendations.

Varvara A Kirchner, Bryan O'Farrell, Charles Imber, Lucas McCormack, Patrick G Northup, Gi-Won Song, Michael Spiro, Dimitri A Raptis, François Durand, ERAS4OLT.org Working Group

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in Clinical transplantation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.2field-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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

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  16. Portal Vein Thrombosis: State-of-the-Art Review.Journal of clinical medicine · 2024
    Review
  17. Antiplatelet Prophylaxis Reduces the Risk of Early Hepatic Artery Thrombosis Following Liver Transplantation in High-Risk Patients.Transplant international : official journal of the European Society for Organ Transplantation · 2024
    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

10 authors at 6 institutions in 5 countries.

Varvara A KirchnerDepartment of Surgery, Division of Transplantation, University of Minnesota, Minneapolis, USA.ORCID https://orcid.org/0000-0002-6949-9327
Bryan O'FarrellDepartment of Pharmacy, Royal Free Hospital, London, UK.
Charles ImberClinical Service of HPB Surgery and Liver Transplantation, Royal Free Hospital, London, UK.
Lucas McCormackLiver Surgery and Transplantation Unit, Department of Surgery, Hospital Aleman, Buenos Aires, Argentina.
Patrick G NorthupDivision of Gastroenterology, Department of Medicine, University of Virginia Health System, Charlottesville, USA.
Gi-Won SongDivision of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.ORCID https://orcid.org/0000-0002-4235-0434
Michael SpiroDepartment of Anesthesia and Intensive Care Medicine, Royal Free Hospital, London, UK.
Dimitri A RaptisClinical Service of HPB Surgery and Liver Transplantation, Royal Free Hospital, London, UK.
François DurandHepatology and Liver Intensive Care, Hospital Beaujon, Clichy, France.
ERAS4OLT.org Working GroupDepartment of Surgery, Division of Transplantation, University of Minnesota, Minneapolis, USA.
The Royal Free Hospital · GBUniversity of Minnesota · USHospital Alemán · ARInserm · FRUlsan College · KRUniversity of Virginia Health System · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA key tenet of clinical management of patients post liver transplantation (LT) is the prevention of thrombotic and bleeding complications. This systematic review investigated the optimal management of thromboprophylaxis after LT regarding portal vein thrombosis (PVT) or hepatic artery thrombosis (HAT) and prevention of bleeding.

methodsSystematic review following PRISMA guidelines and recommendations using the GRADE approach derived from an international expert panel. Seven databases were used to conduct extensive literature searches focusing on the use of anticoagulation in LT and its impact on the following outcomes: PVT, HAT, and bleeding (CRD42021244288).

resultsOf the 2478 articles/abstracts screened, 16 studies were included in the final review. All articles were critically appraised by a panel of independent reviewers. There was wide variation regarding the anticoagulation protocols used. Thromboprophylaxis with therapeutic doses of heparin/Vitamin K antagonist combination did not decrease the risk of de novo or the recurrence of PVT but was associated with an increased risk of bleeding in some studies. Only the use of aspirin resulted in a small but significant decrease in the incidence of HAT post-LT, yet it did not increase the risk of bleeding.

conclusionsBased on existing data and expert opinion, thromboprophylaxis at therapeutic or prophylactic dose is not recommended for prevention of de novo PVT following LT in patients not at high risk. Aspirin should be considered as the standard of care following LT to prevent HAT. Thromboprophylaxis should be strongly considered in recipients at risk of HAT and PVT following LT.

Indexed as

Liver DiseasesLiver TransplantationThrombosisVenous ThromboembolismVenous ThrombosisAnticoagulantsAspirinHemorrhageHepatic ArteryHumansPortal VeinAnticoagulantsAspirinanticoagulationantiplateletbleedinghepatic arteryliver transplantationportal veinthromboprophylaxisthrombosis

Identifiers

PMID35240723
PMCPMC10078564
OpenAlexW4214905224

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.