Evidence map›Paper›PMID 23425732›Full record

Trial reportThe journal of trauma and acute care surgery2013

Platelets are dominant contributors to hypercoagulability after injury.

Jeffrey N Harr, Ernest E Moore, Theresa L Chin, Arsen Ghasabyan, Eduardo Gonzalez, Max V Wohlauer, Anirban Banerjee, Christopher C Silliman, Angela Sauaia

Registry-linked trialAbstract readClinical Trial, Phase IIComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in The journal of trauma and acute care surgery, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02475187 (Observational Study of Thrombogenic Properties in 220 Patients With Proximal Femur Fracture), which is not on this map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
7.6field-weighted citation impact, top 2% 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.

NCT02475187 terminatednot on this mapstarted 2015, after this paper: background citation

Observational Study of Thrombogenic Properties in 220 Patients With Proximal Femur Fracture

TypeobservationalSponsorVestre Viken Hospital TrustRan2015 to 2018Enrolled33ConditionsThromboembolism
3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 94 citations in OpenAlex.

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  17. Complex and prolonged hypercoagulability in coronavirus disease 2019 intensive care unit patients: A thromboelastographic study.Australian critical care : official journal of the Confederation of Australian Critical Care Nurses · 2021
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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

9 authors at 2 institutions in 1 country.

Jeffrey N HarrDepartment of Surgery, University of Colorado Denver, Aurora, Colorado, USA.
Ernest E Moore
Theresa L Chin
Arsen Ghasabyan
Eduardo Gonzalez
Max V Wohlauer
Anirban Banerjee
Christopher C Silliman
Angela Sauaia
University of Colorado Denver · USDenver Health Medical Center · US

Funding

Trauma Reprograms CellsP50GM049222 · NIGMS · UNIVERSITY OF COLORADO DENVER · PI BANERJEE, ANIRBAN · 1993 to 2017
$26.1M
Mechanisms of Trauma-Induced CoagulopathyT32GM008315 · NIGMS · UNIVERSITY OF COLORADO DENVER · PI Mitchell Cohen, ELIZABETH J. KOVACS · 1991 to 2026
$7.1M
NIGMS NIH HHS P50 GM049222NIGMS NIH HHS T32 GM008315
6 · The paper itself

Abstract

backgroundVenous thromboembolic (VTE) disease has a high incidence following trauma, but debate remains regarding optimal prophylaxis. Thrombelastography (TEG) has been suggested to be optimal in guiding prophylaxis. Thus, we designed a phase II randomized controlled trial to test the hypothesis that TEG-guided prophylaxis with escalating low-molecular weight heparin (LMWH), followed by antiplatelet therapy would reduce VTE incidence.

methodsSurgical intensive care unit trauma patients (n = 50) were randomized to receive 5,000 IU of LMWH daily (control) or to TEG-guided prophylaxis, up to 5,000 IU twice daily with the addition of aspirin, and were followed up for 5 days. In vitro studies were also conducted in which apheresis platelets were added to blood from healthy volunteers (n = 10).

resultsControl (n = 25) and TEG-guided prophylaxis (n = 25) groups were similar in age, body mass index, Injury Severity Score, and male sex. Fibrinogen levels and platelet counts did not differ, and increased LMWH did not affect clot strength between the control and study groups. The correlation of clot strength (G value) with fibrinogen was stronger on Days 1 and 2 but was superseded by platelet count on Days 3, 4, and 5. There was also a trend in increased platelet contribution to clot strength in patients receiving increased LMWH. In vitro studies demonstrated apheresis platelets significantly increased clot strength (7.19 ± 0.35 to 10.34 ± 0.29), as well as thrombus generation (713.86 ± 12.19 to 814.42 ± 7.97) and fibrin production (274.03 ± 15.82 to 427.95 ± 16.58).

conclusionIncreased LMWH seemed to increase platelet contribution to clot strength early in the study but failed to affect the overall rise clot strength. Over time, platelet count had the strongest correlation with clot strength, and in vitro studies demonstrated that increased platelet counts increase fibrin production and thrombus generation. In sum, these data suggest an important role for antiplatelet therapy in VTE prophylaxis following trauma, particularly after 48 hours. LEVEL OF EVIDENCE: Therapeutic study, level III.

Indexed as

Blood CoagulationAdultAnticoagulantsBlood PlateletsDose-Response Relationship, DrugFemaleFollow-Up StudiesHeparin, Low-Molecular-WeightHumansInjury Severity ScoreMalePlatelet Aggregation InhibitorsPlatelet CountPrognosisProspective StudiesThrombelastographyAnticoagulantsHeparin, Low-Molecular-WeightPlatelet Aggregation Inhibitors

Identifiers

PMID23425732
PMCPMC3736746
OpenAlexW2005400259

What OpenQuestion holds

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LicenceTDM
Read underepoch 390

Registered trials

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.