Evidence map›Paper›PMID 29310956›Full record

Observational studyJournal of stroke and cerebrovascular diseases : the official journal of National Stroke Association2018

Medication History versus Point-of-Care Platelet Activity Testing in Patients with Intracerebral Hemorrhage.

Matthew B Maas, Andrew M Naidech, Minjee Kim, Ayush Batra, Edward M Manno, Farzaneh A Sorond, Shyam Prabhakaran, Eric M Liotta

Abstract readComparative StudyObservational Study
In one paragraph

Observational study in Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

4 citing papers in PubMed, 8 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

8 authors at 1 institution in 1 country.

Matthew B MaasDivision of Stroke and Critical Care, Department of Neurology, Northwestern University, Chicago, Illinois. Electronic address: mbmaas@northwestern.edu.
Andrew M NaidechDivision of Stroke and Critical Care, Department of Neurology, Northwestern University, Chicago, Illinois.
Minjee KimDivision of Stroke and Critical Care, Department of Neurology, Northwestern University, Chicago, Illinois.
Ayush BatraDivision of Stroke and Critical Care, Department of Neurology, Northwestern University, Chicago, Illinois.
Edward M MannoDivision of Stroke and Critical Care, Department of Neurology, Northwestern University, Chicago, Illinois.
Farzaneh A SorondDivision of Stroke and Critical Care, Department of Neurology, Northwestern University, Chicago, Illinois.
Shyam PrabhakaranDivision of Stroke and Critical Care, Department of Neurology, Northwestern University, Chicago, Illinois.
Eric M LiottaDivision of Stroke and Critical Care, Department of Neurology, Northwestern University, Chicago, Illinois.
Northwestern University · US

Funding

Northwestern University Clinical and Translational Science Institute (NUCATS)UL1TR001422 · NCATS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI D'AQUILA, RICHARD · 2015 to 2023
$56.8M
Multidisciplinary Clinical and Translational Science (MCTS) Program (UL1)UL1TR000150 · NCATS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI LLOYD-JONES, DONALD M · 2012 to 2013
$10.1M
Northwestern University Clinical and Translational Science Institute (NUCATS)KL2TR001424 · NCATS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SHARMA, LEENA · 2015 to 2023
$8.1M
Circadian Dysfunction, Encephalopathy, and Cognitive Outcomes after Critical IllnessK23NS092975 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MAAS, MATTHEW BRANDON · 2015 to 2019
$886k
Health related quality of life and seizure medications after hemorrhagic strokeK18HS023437 · AHRQ · NORTHWESTERN UNIVERSITY AT CHICAGO · PI NAIDECH, ANDREW M · 2015 to 2016
$357k
AHRQ HHS K18 HS023437NCATS NIH HHS KL2 TR001424NCATS NIH HHS UL1 TR000150NCATS NIH HHS UL1 TR001422NINDS NIH HHS K23 NS092975NINDS NIH HHS L30 NS080176NINDS NIH HHS L30 NS098427
6 · The paper itself

Abstract

objectiveWe evaluated whether reduced platelet activity detected by point-of-care (POC) testing is a better predictor of hematoma expansion and poor functional outcomes in patients with intracerebral hemorrhage (ICH) than a history of antiplatelet medication exposure.

methodsPatients presenting with spontaneous ICH were enrolled in a prospective observational cohort study that collected demographic, clinical, laboratory, and radiographic data. We measured platelet activity using the PFA-100 (Siemens AG, Germany) and VerifyNow-ASA (Accumetrics, CA) systems on admission. We performed univariate and adjusted multivariate analyses to assess the strength of association between those measures and (1) hematoma growth at 24 hours and (2) functional outcomes measured by the modified Rankin Scale (mRS) at 3 months.

resultsWe identified 278 patients for analysis (mean age 65 ± 15, median ICH score 1 [interquartile range 0-2]), among whom 164 underwent initial neuroimaging within 6 hours of symptom onset. Univariate association with hematoma growth was stronger for antiplatelet medication history than POC measures, which was confirmed in multivariable models (β 3.64 [95% confidence interval [CI] 1.02-6.26], P = .007), with a larger effect size measured in the under 6-hour subgroup (β 7.20 [95% CI 3.35-11.1], P < .001). Moreover, antiplatelet medication history, but not POC measures of platelet activity, was independently associated with poor outcome at 3 months (mRS 4-6) in the under 6-hour subgroup (adjusted OR 3.6 [95% CI 1.2-11], P = .023).

conclusionA history of antiplatelet medication use better identifies patients at risk for hematoma growth and poor functional outcomes than POC measures of platelet activity after spontaneous ICH.

Indexed as

Platelet Function TestsPoint-of-Care TestingAgedAged, 80 and overBlood PlateletsCerebral HemorrhageDisability EvaluationDisease ProgressionFemaleHematomaHumansMaleMiddle AgedMultivariate AnalysisPlatelet ActivationPlatelet Aggregation InhibitorsPlatelet Aggregation Inhibitorsantiplatelethemorrhagic strokehemostasisIntracerebral hemorrhageintracranial hemorrhageplatelet dysfunction

Identifiers

PMID29310956
PMCPMC5879005
OpenAlexW2781843000

What OpenQuestion holds

Textmetadata
LicenceTDM
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.