Evidence map›Paper›PMID 32043266›Full record

ArticleNeurocritical care2020

Association Between Perihematomal Perfusion and Intracerebral Hemorrhage Outcome.

Andrea Morotti, Giorgio Busto, Andrea Bernardoni, Sandro Marini, Ilaria Casetta, Enrico Fainardi

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 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.3field-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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
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  7. Article
  8. Clinical implications of Peri-hematomal edema microperfusion fraction in intracerebral hemorrhage intravoxel incoherent motion imaging - A pilot study.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2023
    Article
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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

6 authors at 5 institutions in 3 countries.

Andrea MorottiDepartment of Neurology and Neurorehabilitation, IRCCS Mondino Foundation, Via Mondino 2, 27100, Pavia, Italy. andrea.morotti85@gmail.com.ORCID http://orcid.org/0000-0002-6558-1155
Giorgio BustoDiagnostic Imaging Unit, Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy.
Andrea BernardoniNeuroradiology Unit, Department of Radiology, Arcispedale S. Anna, Ferrara, Italy.
Sandro MariniCenter for Genomic Medicine, Massachusetts General Hospital, Boston, USA.
Ilaria CasettaSection of Neurology, Department of Biomedical and Specialty Surgical Sciences, University of Ferrara, Ferrara, Italy.
Enrico FainardiNeuroradiology Unit, Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy.
University of Florence · ITArcispedale Sant'Anna · ITFoundation Center · USMassachusetts General Hospital · USUniversity of Ferrara · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prognostic impact of perihematomal hypoperfusion in patients with acute intracerebral hemorrhage (ICH) remains unclear. We tested the hypothesis that perihematomal hypoperfusion predicts poor ICH outcome and explored whether hematoma growth (HG) is the pathophysiological mechanism behind this association.

methodsA prospectively collected single-center cohort of consecutive ICH patients undergoing computed tomography perfusion on admission was analyzed. Cerebral blood flow (pCBF) was measured in the manually outlined perihematomal low-density area. pCBF was categorized into normal (40-55 mL/100 g/min), low (< 40 mL/100 g/min), and high (> 55 mL/100 g/min). HG was calculated as total volume increase from baseline to follow-up CT. A modified Rankin scale > 2 at three months was the outcome of interest. The association between cerebral perfusion and outcome was investigated with logistic regression, and potential mediators of this relationship were explored with mediation analysis.

resultsA total of 155 subjects were included, of whom 55 (35.5%) had poor outcome. The rates of normal pCBF, low pCBF, and high pCBF were 17.4%, 68.4%, and 14.2%, respectively. After adjustment for confounders and keeping subjects with normal pCBF as reference, the risk of poor outcome was increased in patients with pCBF < 40 mL/100 g/min (odds ratio 6.11, 95% confidence interval 1.09-34.35, p = 0.040). HG was inversely correlated with pCBF (R = -0.292, p < 0.001) and mediated part of the association between pCBF and outcome (proportion mediated: 82%, p = 0.014).

conclusionReduced pCBF is associated with poor ICH outcome in patients with mild-moderate severity. HG appears a plausible biological mediator but does not fully account for this association, and other mechanisms might be involved.

Indexed as

Cerebral HemorrhageHematomaCerebrovascular CirculationHumansPerfusionTomography, X-Ray ComputedCerebral blood flowCT perfusionIntracerebral hemorrhageOutcomeStroke

Identifiers

PMID32043266
OpenAlexW3005897118

What OpenQuestion holds

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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.