Evidence map›Paper›PMID 40012591›Full record

ArticleBrain circulation

Cerebral blood flow change with fluid resuscitation in acute ischemic stroke.

Joseph Miller, John Aidan Moloney, Noah Elagamy, Jacob Tuttle, Sam Tirgari, Sean Calo, Richard Thompson, Bashar Nahab, Christopher Lewandowski, Phillip Levy

Registry-linked trialAbstract read
In one paragraph

Article in Brain circulation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02056821 (Hemodynamic Effects on Cerebral Autoregulation in Acute Stroke), which is not on this map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
–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

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.

NCT02056821 completednot on this map

Hemodynamic Effects on Cerebral Autoregulation in Acute Stroke

TypeobservationalSponsorHenry Ford Health SystemRan2014 to 2016Enrolled88ConditionsIschemic Stroke
3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  3. Review
  4. Article
  5. Review
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  7. Review
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

10 authors.

Joseph MillerDepartment of Emergency Medicine, Henry Ford Health, Detroit.
John Aidan MoloneyDepartment of Emergency Medicine, Henry Ford Health, Detroit.
Noah ElagamyCollege of Human Medicine, Michigan State University, East Lansing.
Jacob TuttleDepartment of Emergency Medicine, Henry Ford Health, Detroit.
Sam TirgariDepartment of Emergency Medicine, Henry Ford Health, Detroit.
Sean CaloDepartment of Radiology, Case Western Reserve University, Cleveland.
Richard ThompsonDepartment of Anaesthesiology, University of California, San Francisco, San Francisco, CA, United States.
Bashar NahabDepartment of Radiology, University of Cincinnati, Cincinnati, OH, United States.
Christopher LewandowskiDepartment of Emergency Medicine, Henry Ford Health, Detroit.
Phillip LevySchool of Medicine, Wayne State University, Detroit, MI.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn acute ischemic stroke (AIS), cerebral autoregulation becomes dysfunctional, impacting the brain's ability to maintain cerebral blood flow (CBF) at adequate levels. Reperfusion of affected and nearby brain tissue in AIS is currently the aim of treatment in AIS, but the effectiveness of fluid resuscitation on increasing the CBF is debated.

objectiveWe investigated the hypothesis that early fluid resuscitation with normal saline bolus would improve CBF velocity in the initial resuscitation of patients with AIS.

methodsWe conducted a prospective, quasi-experimental study on 30 patients in the early stages of AIS management. Patients had a National Institutes of Health Stroke Scale (NIHSS) score of 3 or higher. Patients met inclusion criteria if they were 18-90 years old and had time of stroke onset within 12 h. Patients with a severe underlying disability, hemorrhagic stroke, advanced directives for comfort care/hospice, as well as pregnant patients were excluded. Noninvasive hemodynamic monitoring was performed. We performed transcranial Doppler (TCD) insonation of the middle cerebral arteries (MCAs) to measure CBF velocity. Each patient received a 500-ml normal saline crystalloid bolus as a standardized intervention, then had hemodynamic and TCD measurements repeated. Analysis was limited to patients with stroke confirmed with neuroimaging. Mean flow velocity (MFV) was compared before and postreceiving the bolus in the MCA ipsilateral to the ischemic location.

resultsThirty patients were analyzed who had confirmed AIS. The mean age was 53 ± 13 years, 50% were female, and the median NIHSS was 6 (interquartile range: 4-7). Outcomes measured included various cerebrovascular and cardiovascular parameters. Infusion of 500-mL normal saline bolus produced increases in systolic blood pressure (+7 mmHg, 95% confidence interval [CI] 0.6-13 mmHg) and stroke volume (SV) index (+2.2 ml/m

conclusionOur prospective study of AIS patients revealed that a fluid bolus improves hemodynamic parameters, but did not significantly increase CBF velocity.

trial registrationclinicaltrials.gov (identifier: NCT02056821).

Indexed as

Acute ischemic strokecerebral blood flowfluid resuscitationTranscranial Doppler

Identifiers

PMID40012591
PMCPMC11850932

What Socratic holds

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Registered trials

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 Socratic graph.