Evidence map›Paper›PMID 41552749›Full record

ArticleResearch and practice in thrombosis and haemostasis2026

Mortality and complications in low-dose vs standard-dose unfractionated heparin anticoagulation for extracorporeal membrane oxygenation: a systematic review and meta-analysis.

Wincy Wing-Sze Ng, Rex Wan-Hin Hui, Ka-Chun Leung, Pauline Yeung Ng, Chun-Wai Ngai, Simon Wai-Ching Sin, Chun-Fung Sin

Abstract read
In one paragraph

Article in Research and practice in thrombosis and haemostasis, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

7 authors.

Wincy Wing-Sze NgAdult Intensive Care Unit, Queen Mary Hospital, Hong Kong, China.
Rex Wan-Hin HuiDepartment of Medicine, School of Clinical Medicine, University of Hong Kong, Hong Kong, China.
Ka-Chun LeungDepartment of Medicine and Geriatrics, Tuen Mun Hospital, Hong Kong, China.
Pauline Yeung NgAdult Intensive Care Unit, Queen Mary Hospital, Hong Kong, China.
Chun-Wai NgaiAdult Intensive Care Unit, Queen Mary Hospital, Hong Kong, China.
Simon Wai-Ching SinAdult Intensive Care Unit, Queen Mary Hospital, Hong Kong, China.
Chun-Fung SinDepartment of Pathology, School of Clinical Medicine, University of Hong Kong, Hong Kong, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Controversies exist in anticoagulation practices in extracorporeal membrane oxygenation (ECMO). It is uncertain whether the intensity of anticoagulation affects ECMO outcomes. Objectives: To conduct a meta-analysis to determine whether anticoagulation intensity affects ECMO outcomes. Methods: The Medical Literature Analysis and Retrieval System Online, Embase, and Central Register of Controlled Trials' databases were searched from inception to October 2024 for trials comparing the use of low-dose (LD) and standard-dose unfractionated heparin anticoagulation in patients on ECMO. The primary outcome was short-term mortality. Secondary outcomes included major bleeding events, intracranial hemorrhage (ICH), oxygenator changes, systemic thrombotic events, and ECMO duration. Data were pooled using a random-effects meta-analysis. The risk-of-bias was assessed using the Cochrane Risk-of-Bias 2 tool for randomized controlled trials and the Risk-of-Bias in Non-Randomized Studies of Interventions for nonrandomized controlled trials. Results: Seven studies with 619 patients were included. LD anticoagulation was associated with significant reduction in the relative risk (RR) of mortality compared to standard-dose anticoagulation (RR, 0.69; 95% CI, 0.52-0.91; Conclusion: This meta-analysis suggests that LD unfractionated heparin anticoagulation is associated with significantly better survival and a lower risk of ICH without an increase in the risk of thrombotic events. LD anticoagulation should be considered a reasonable strategy in ECMO.

Indexed as

agentsanticoagulationECMOextracorporeal membrane oxygenation

Identifiers

PMID41552749
PMCPMC12804120

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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.