Evidence map›Paper›PMID 25179518›Full record

ArticleThrombosis research2014

Measuring the activity of apixaban and rivaroxaban with rotational thrombelastometry.

Dieter Adelmann, Marion Wiegele, Rudolf Karl Wohlgemuth, Stefan Koch, Sophie Frantal, Peter Quehenberger, Gisela Scharbert, Sibylle Kozek-Langenecker, Eva Schaden

Abstract read
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In one paragraph

Article in Thrombosis research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
–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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Laboratory Assessment of the Anticoagulant Activity of Apixaban in Patients With Nonvalvular Atrial Fibrillation.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis · 2018
    Trial
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  10. Point-of-Care Diagnostics in Coagulation Management.Sensors (Basel, Switzerland) · 2020
    Review
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  12. Apixaban enhances endogenous fibrinolysis in patients with atrial fibrillation.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2019
    Observational
  13. Article
  14. Diagnostic accuracy of thromboelastometry and its correlation with the HPLC-MS/MS quantification test.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2019
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Dieter AdelmannDepartment of Anaesthesia, General Intensive Care and Pain Control, Medical University of Vienna, Vienna, Austria.
Marion WiegeleDepartment of Anaesthesia, General Intensive Care and Pain Control, Medical University of Vienna, Vienna, Austria.
Rudolf Karl WohlgemuthDepartment of Anaesthesia, General Intensive Care and Pain Control, Medical University of Vienna, Vienna, Austria.
Stefan KochDepartment of Anaesthesia, General Intensive Care and Pain Control, Medical University of Vienna, Vienna, Austria.
Sophie FrantalSection for Medical Statistics, Medical University of Vienna, Vienna, Austria.
Peter QuehenbergerDepartment of Medical and Chemical Laboratory Diagnostics, Medical University of Vienna, Vienna, Austria.
Gisela ScharbertDepartment of Anaesthesia, General Intensive Care and Pain Control, Medical University of Vienna, Vienna, Austria.
Sibylle Kozek-LangeneckerDepartment of Anaesthetics and Intensive Care, Evangelical Hospital Vienna, Vienna, Austria.
Eva SchadenDepartment of Anaesthesia, General Intensive Care and Pain Control, Medical University of Vienna, Vienna, Austria. Electronic address: eva.schaden@meduniwien.ac.at.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRoutine drug monitoring is not required for the two novel direct factor Xa inhibitors apixaban and rivaroxaban. Rapidly available test results might be beneficial in case of bleeding or prior to urgent surgery.

objectivesThe aim of this study was to evaluate the applicability of the two rotational thrombelastometry (ROTEM®) -modifications Low-tissue factor activated ROTEM® (LowTF-ROTEM®) and Prothrombinase induced clotting time - activated ROTEM® (PiCT®-ROTEM®) for determination of apixaban and rivaroxaban in vitro and ex vivo.

methodsBlood samples from 20 volunteers were spiked with apixaban / rivaroxaban to yield samples with ascending drug concentrations ranging from 50 - 400ng/mL. LowTF - and PiCT® modified ROTEM® tests and determination of the corresponding antifactor Xa activity were performed in duplicate in 280 samples. LowTF-ROTEM® tests were performed in samples from 20 patients on apixaban or rivaroxaban therapy and 20 controls.

resultsThere was a strong correlation between apixaban / rivaroxaban plasma concentrations and the LowTF-ROTEM® parameters Clotting time (CT; spearman correlation coefficient (SCC) 0.81 and 0.81, respectively) and Time to maximum velocity (t,MaxVel; SCC: 0.81 and 0.80, resp.) and a low to moderate correlation for the PiCT®-ROTEM® parameters CT (SCC: 0.38 and 0.59, resp.) and t,MaxVel. (0.51 and 0.69, resp.) in the in vitro experiments. LowTF-ROTEM CT was significantly prolonged in patients on apxiaban or rivaroxaban therapy compared to controls.

conclusionsLowTF-ROTEM® could be a valuable diagnostic tool for rapid determination of the effect of apixaban and rivaroxaban at the point of care.

Indexed as

Blood CoagulationFactor Xa InhibitorsHumansMorpholinesPoint-of-Care SystemsPyrazolesPyridonesRivaroxabanThiophenesThrombelastographyapixabanFactor Xa InhibitorsMorpholinesPyrazolesPyridonesRivaroxabanThiophenesApixabanBlood coagulation testsPoint-of-Care coagulation testsRivaroxabanThrombelastography

Identifiers

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.