Evidence map›Paper›PMID 28771571›Full record

ArticlePloS one2017

Optical sensing of anticoagulation status: Towards point-of-care coagulation testing.

Diane M Tshikudi, Markandey M Tripathi, Zeinab Hajjarian, Elizabeth M Van Cott, Seemantini K Nadkarni

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

9 citing papers in PubMed, 25 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Diane M TshikudiWellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America.ORCID http://orcid.org/0000-0001-8343-5162
Markandey M TripathiWellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America.
Zeinab HajjarianWellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America.
Elizabeth M Van CottDepartment of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America.
Seemantini K NadkarniWellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America.
Harvard University · US

Funding

Blood Coagulation Monitoring at the Point of CareR01HL119867 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI NADKARNI, SEEMANTINI K · 2014 to 2018
$2.2M
NHLBI NIH HHS R01 HL119867
6 · The paper itself

Abstract

Anticoagulant overdose is associated with major bleeding complications. Rapid coagulation sensing may ensure safe and accurate anticoagulant dosing and reduce bleeding risk. Here, we report the novel use of Laser Speckle Rheology (LSR) for measuring anticoagulation and haemodilution status in whole blood. In the LSR approach, blood from 12 patients and 4 swine was placed in disposable cartridges and time-varying intensity fluctuations of laser speckle patterns were measured to quantify the viscoelastic modulus during clotting. Coagulation parameters, mainly clotting time, clot progression rate (α-angle) and maximum clot stiffness (MA) were derived from the clot viscoelasticity trace and compared with standard Thromboelastography (TEG). To demonstrate the capability for anticoagulation sensing in patients, blood samples from 12 patients treated with warfarin anticoagulant were analyzed. LSR clotting time correlated with prothrombin and activated partial thromboplastin time (r = 0.57-0.77, p<0.04) and all LSR parameters demonstrated good correlation with TEG (r = 0.61-0.87, p<0.04). To further evaluate the dose-dependent sensitivity of LSR parameters, swine blood was spiked with varying concentrations of heparin, argatroban and rivaroxaban or serially diluted with saline. We observed that anticoagulant treatments prolonged LSR clotting time in a dose-dependent manner that correlated closely with TEG (r = 0.99, p<0.01). LSR angle was unaltered by anticoagulation whereas TEG angle presented dose-dependent diminution likely linked to the mechanical manipulation of the clot. In both LSR and TEG, MA was largely unaffected by anticoagulation, and LSR presented a higher sensitivity to increased haemodilution in comparison to TEG (p<0.01). Our results establish that LSR rapidly and accurately measures the response of various anticoagulants, opening the opportunity for routine anticoagulation monitoring at the point-of-care or for patient self-testing.

Indexed as

AnimalsAnticoagulantsBlood Coagulation DisordersBlood Coagulation TestsDose-Response Relationship, DrugFemaleHumansMalePartial Thromboplastin TimePoint-of-Care SystemsProthrombin TimeRheologySwineWarfarinAnticoagulantsWarfarin

Identifiers

PMID28771571
PMCPMC5542647
OpenAlexW2744230390

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.