Evidence map›Paper›PMID 32096121›Full record

ArticleNeurocritical care2020

Diagnostic Accuracy of Glial Fibrillary Acidic Protein and Ubiquitin Carboxy-Terminal Hydrolase-L1 Serum Concentrations for Differentiating Acute Intracerebral Hemorrhage from Ischemic Stroke.

Sebastian Luger, Henriette S Jæger, Joanna Dixon, Ferdinand O Bohmann, JanHendrik Schaefer, Steven P Richieri, Karianne Larsen, Maren R Hov, Kristi G Bache, Christian Foerch and 1 more

Abstract read
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In one paragraph

Article in Neurocritical care, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 8% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 3 countries.

Sebastian Luger *Department of Neurology, Goethe-University Hospital Frankfurt, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany. Sebastian.Luger@kgu.de.ORCID http://orcid.org/0000-0001-9236-2196
Henriette S Jæger *The Norwegian Air Ambulance Foundation, Oslo, Norway.
Joanna DixonDepartment of Neurology, Goethe-University Hospital Frankfurt, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany.
Ferdinand O BohmannDepartment of Neurology, Goethe-University Hospital Frankfurt, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany.
JanHendrik SchaeferDepartment of Neurology, Goethe-University Hospital Frankfurt, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany.
Steven P RichieriBanyan Biomarkers, Inc., San Diego, CA, USA.
Karianne LarsenThe Norwegian Air Ambulance Foundation, Oslo, Norway.
Maren R HovThe Norwegian Air Ambulance Foundation, Oslo, Norway.
Kristi G BacheThe Norwegian Air Ambulance Foundation, Oslo, Norway.
Christian FoerchDepartment of Neurology, Goethe-University Hospital Frankfurt, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany.
BE FAST III Study Group
Goethe University Frankfurt · DEOslo University Hospital · NOStiftelsen Norsk Luftambulanse · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBiomarkers indicative of intracerebral hemorrhage (ICH) may help triage acute stroke patients in the pre-hospital phase. We hypothesized that serum concentration of glial fibrillary acidic protein (GFAP) in combination with ubiquitin carboxy-terminal hydrolase-L1 (UCH-L1), measured by a rapid bio-assay, could be used to distinguish ICH from ischemic stroke.

methodsThis prospective two-center study recruited patients with a clinical diagnosis of acute stroke both in the pre-hospital phase and at hospital admission (within 4 and 6 h after symptom onset, respectively). Blood samples were analyzed for concentrations of GFAP and UCH-L1 using ELISA techniques. The reference standard was the diagnosis of ICH, ischemic stroke, or stroke mimicking condition achieved after clinical workup including brain imaging.

resultsA total of 251 patients were included (mean age [± SD] 72 ± 15 years; 5 ICH, 23 ischemic strokes and 14 stroke mimics in the pre-hospital part; and 59 ICH, 148 ischemic strokes and 2 stroke mimics in the in-hospital part). Mean delay (± SD) from symptom onset to blood withdrawal was 130 ± 79 min for the pre-hospital patients and 136 ± 86 min for the in-hospital patients. Both GFAP and UCH-L1 serum concentrations were higher in patients having ICH as compared to other diagnoses (GFAP: median 330 ng/L [interquartile range 64-7060, range 8-56,100] vs. 27.5 ng/L [14-57.25, 0-781], p < 0.001; UCH-L1: 401 ng/L [265-764, 133-1812] vs. 338 ng/L [213-549.5, 0-2950], p = 0.025). Area-under-the-curve values were 0.866 (95% CI 0.809-0.924, p < 0.001) for GFAP, and 0.590 (0.511-0.670, p = 0.033) for UCH-L1. Regarding overall diagnostic accuracy, UCH-L1 did not add significantly to the performance of GFAP.

conclusionsGFAP may differentiate ICH from ischemic stroke and stroke mimics. A point-of-care test to distinguish between ischemic and hemorrhagic strokes might facilitate triage to different treatment pathways or locations, or be used to select patients for trials of ultra-early interventions.

Indexed as

AgedAged, 80 and overDiagnosis, DifferentialFemaleGlial Fibrillary Acidic ProteinHemorrhagic StrokeHumansIschemic StrokeMaleMiddle AgedPoint-of-Care TestingUbiquitin ThiolesteraseGFAP protein, humanGlial Fibrillary Acidic ProteinUbiquitin ThiolesteraseUCHL1 protein, humanBiomarkerGFAPGlial fibrillary acidic proteinIntracerebral hemorrhageIschemic strokeUbiquitin carboxy-terminal hydrolase-L1UCH-L1

Identifiers

PMID32096121
OpenAlexW3008964745

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.