Evidence map›Paper›PMID 31223264›Full record

ArticleBiochemia medica2019

Elevated activated partial thromboplastin time-based clot waveform analysis markers have strong positive association with acute venous thromboembolism.

Chuen Wen Tan, McVin Hua Heng Cheen, Wan Hui Wong, Ian Qianhuang Wu, Brian Lee Wei Chua, Sahul Hameed Ahamedulla, Lai Heng Lee, Heng Joo Ng

Abstract read
In one paragraph

Article in Biochemia medica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

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3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

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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

8 authors.

Chuen Wen TanDepartment of Hematology, Singapore General Hospital, Singapore.
McVin Hua Heng CheenDepartment of Pharmacy, Singapore General Hospital, Singapore.
Wan Hui WongDepartment of Hematology, Singapore General Hospital, Singapore.
Ian Qianhuang WuDepartment of Hematology, Singapore General Hospital, Singapore.
Brian Lee Wei ChuaDepartment of Hematology, Singapore General Hospital, Singapore.
Sahul Hameed AhamedullaDepartment of Hematology, Singapore General Hospital, Singapore.
Lai Heng LeeDepartment of Hematology, Singapore General Hospital, Singapore.
Heng Joo NgDepartment of Hematology, Singapore General Hospital, Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionA hypercoagulable state is a predisposition for venous thromboembolism (VTE). The activated partial thromboplastin time (aPTT)-based clot waveform analysis (CWA) is a global haemostatic measure but its role in assessment of hypercoagulability and thrombotic disorders is uncertain. We aimed to study the changes of CWA parameters in acute VTE. We hypothesized that patients with acute VTE would demonstrate higher CWA values than control patients without VTE and having elevated CWA parameters is associated with acute VTE. MATERIALS AND

methodsClot waveform analysis data from patients (N = 45) with objectively proven acute VTE who had an aPTT performed prior to initiation of anticoagulation were compared with controls (N = 111). The CWA parameters measured were min1, min2, max2 and delta change.

resultsWhile the mean aPTT between VTE patients and controls did not differ (P = 0.830), the mean CWA parameters were significantly higher among VTE patients than controls (min1, P < 0.001; min2, P = 0.001; max2, P = 0.002; delta change, P < 0.001). There were significantly more cases within the VTE group exhibiting CWA values above their reference intervals than the control group (all P < 0.001), with the odds ratios for VTE of 8.0, 5.2, 4.8 and 18.6 for min1, min2, max2 and delta change, respectively (all P < 0.001).

conclusionsPatients with acute VTE had elevated aPTT-based CWA parameters than controls. Higher CWA parameters were significantly associated with acute VTE.

Indexed as

Blood Coagulation TestsPartial Thromboplastin TimeAcute DiseaseAdultAgedAged, 80 and overAnticoagulantsComputed Tomography AngiographyCross-Sectional StudiesFemaleHumansMaleMiddle AgedRetrospective StudiesVenous ThromboembolismYoung AdultAnticoagulantsactivated partial thromboplastin timeblood coagulationthrombophiliathrombosisvenous thromboembolism

Identifiers

PMID31223264
PMCPMC6559615

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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.