Evidence map›Paper›PMID 31009358›Full record

ArticleStroke2019

Secondary Bleeding During Acute Experimental Intracerebral Hemorrhage.

Frieder Schlunk, Maximilian Böhm, Gregoire Boulouis, Tao Qin, Michal Arbel, Isra Tamim, Paul Fischer, Brian J Bacskai, Matthew P Frosch, Matthias Endres and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Stroke, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

12 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
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  7. Review
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  10. Rapid hematoma growth triggers spreading depolarizations in experimental intracortical hemorrhage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Article
  11. Review
  12. Article
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

12 authors at 2 institutions in 1 country.

Frieder SchlunkFrom the Neurovascular Research Laboratory, Department of Radiology (F.S., M.B., T.Q., I.T., P.F., C.A.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Maximilian BöhmFrom the Neurovascular Research Laboratory, Department of Radiology (F.S., M.B., T.Q., I.T., P.F., C.A.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Gregoire BoulouisStroke Research Center (F.S., G.B., S.M.G.), Massachusetts General Hospital, Harvard Medical School, Boston.
Tao QinFrom the Neurovascular Research Laboratory, Department of Radiology (F.S., M.B., T.Q., I.T., P.F., C.A.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Michal ArbelAlzheimer's Disease Research Laboratory (M.A., B.J.B., M.P.F., S.M.G.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Isra TamimFrom the Neurovascular Research Laboratory, Department of Radiology (F.S., M.B., T.Q., I.T., P.F., C.A.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Paul FischerFrom the Neurovascular Research Laboratory, Department of Radiology (F.S., M.B., T.Q., I.T., P.F., C.A.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Brian J BacskaiAlzheimer's Disease Research Laboratory (M.A., B.J.B., M.P.F., S.M.G.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Matthew P FroschAlzheimer's Disease Research Laboratory (M.A., B.J.B., M.P.F., S.M.G.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Matthias EndresCenter for Stroke Research Berlin (CSB) (F.S., M.B., I.T., P.F., M.E.), Charité Universitätsmedizin, Berlin, Germany.
Steven M GreenbergAlzheimer's Disease Research Laboratory (M.A., B.J.B., M.P.F., S.M.G.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Cenk AyataFrom the Neurovascular Research Laboratory, Department of Radiology (F.S., M.B., T.Q., I.T., P.F., C.A.), Massachusetts General Hospital, Harvard Medical School, Charlestown.
Massachusetts General Hospital · USHarvard University · US

Funding

Targeting ROCK for Neurogliovascular Plasticity & Remodeling After StrokeP01NS055104 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI LO, ENG H. · 2007 to 2018
$13.3M
CEREBRAL AMYLOID ANGIOPATHY AND MECHANISMS OF BRAIN AMYLOID ACCUMULATIONR01NS096730 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI BACSKAI, BRIAN J, GREENBERG, STEVEN M · 2016 to 2020
$5.7M
Cerebral microvascular lesions and vascular and neuronal networksRF1NS110054 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI BACSKAI, BRIAN J · 2018 to 2020
$2.7M
Non-invasive vagus nerve stimulation targeting cortical spreading depression in migrane prophylaxisR01NS102969 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI AYATA, CENK · 2017 to 2021
$1.9M
Neural & Vascular Dysfunction As Mechanisms of Injury in Genetic Migraine ModelsR01NS061505 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI AYATA, CENK · 2008 to 2012
$1.8M
NINDS NIH HHS P01 NS055104NINDS NIH HHS R01 NS061505NINDS NIH HHS R01 NS096730NINDS NIH HHS R01 NS102969NINDS NIH HHS RF1 NS110054
6 · The paper itself

Abstract

Background and Purpose- Mechanisms contributing to acute hematoma growth in intracerebral hemorrhage are not well understood. Neuropathological studies suggest that the initial hematoma may create mass effect that can tear vessels in the vicinity by shearing, causing further bleeding and hematoma growth. Methods- To test this in mice, we simulated initial intracerebral hemorrhage by intrastriatal injection of a liquid polymer that coagulates upon contact with tissue and measured the presence and volume of bleeding secondary to the mass effect using Hemoglobin ELISA 15 minutes after injection. Results- Secondary hemorrhage occurred in a volume-dependent (4, 7.5, or 15 μL of polymer) and rate-dependent (0.05, 0.5, or 5 μL/s) manner. Anticoagulation (warfarin or dabigatran) exacerbated the secondary hemorrhage volume. In a second model of hematoma expansion, we confirmed that intrastriatal whole blood injection (15 μL, 0.5 μL/s) also caused secondary bleeding, using acute Evans blue extravasation as a surrogate. Anticoagulation once again exacerbated secondary hemorrhage after intrastriatal whole blood injection. Secondary hemorrhage directly and significantly correlated with arterial blood pressures in both nonanticoagulated and anticoagulated mice, when modulated by phenylephrine or labetalol. Conclusions- Our study provides the first proof of concept for secondary vessel rupture and bleeding as a potential mechanism for intracerebral hematoma growth.

Indexed as

Acute DiseaseAnimalsAnticoagulantsCerebral HemorrhageDabigatranHemorrhageMaleMiceRandom AllocationWarfarinAnticoagulantsDabigatranWarfarinblood pressuredabigatranhematomalabetalolwarfarin

Identifiers

PMID31009358
PMCPMC6478448
OpenAlexW2940254828

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.