Evidence map›Paper›PMID 24727136›Full record

ArticleResuscitation2014

Global and regional differences in cerebral blood flow after asphyxial versus ventricular fibrillation cardiac arrest in rats using ASL-MRI.

Tomas Drabek, Lesley M Foley, Andreas Janata, Jason Stezoski, T Kevin Hitchens, Mioara D Manole, Patrick M Kochanek

Abstract read
In one paragraph

Article in Resuscitation, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
6.3field-weighted citation impact, top 3% 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

46 citing papers in PubMed, 70 citations in OpenAlex.

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  13. Changes of antioxidant enzymes in the kidney after cardiac arrest in the rat model.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2023
    Article
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  15. Resuscitation with epinephrine worsens cerebral capillary no-reflow after experimental pediatric cardiac arrest: AnJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
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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

7 authors at 2 institutions in 1 country.

Tomas DrabekSafar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, United States; Department of Anesthesiology, University of Pittsburgh, Pittsburgh, PA, United States. Electronic address: drabekt@anes.upmc.edu.
Lesley M FoleyPittsburgh NMR Center for Biomedical Research, Carnegie Mellon University, Pittsburgh, PA, United States.
Andreas JanataSafar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, United States.
Jason StezoskiSafar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, United States; Department of Anesthesiology, University of Pittsburgh, Pittsburgh, PA, United States.
T Kevin HitchensPittsburgh NMR Center for Biomedical Research, Carnegie Mellon University, Pittsburgh, PA, United States.
Mioara D ManoleSafar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, United States; Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, United States.
Patrick M KochanekSafar Center for Resuscitation Research, University of Pittsburgh, Pittsburgh, PA, United States; Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, United States.
University of Pittsburgh · USCarnegie Mellon University · US

Funding

A MULTIDISCIPLINARY NMR CENTER FOR BIOMEDICAL RESEARCHP41EB001977 · NIBIB · MELLON PITTS CORPORATION (MPC CORP) · PI HO, CHIEN · 2003 to 2013
$12.5M
CYP 450-mediated CBF Dysregulation and Neurotoxicity in Pediatric Cardiac ArrestR01HD075760 · NICHD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MANOLE, MIOARA D. · 2013 to 2017
$1.5M
NIBIB NIH HHS P41 EB001977NIBIB NIH HHS P41EB-001977NICHD NIH HHS R01 HD075760NICHD NIH HHS R01HD075760
6 · The paper itself

Abstract

Both ventricular fibrillation cardiac arrest (VFCA) and asphyxial cardiac arrest (ACA) are frequent causes of CA. However, only isolated reports compared cerebral blood flow (CBF) reperfusion patterns after different types of CA, and even fewer reports used methods that allow serial and regional assessment of CBF. We hypothesized that the reperfusion patterns of CBF will differ between individual types of experimental CA. In a prospective block-randomized study, fentanyl-anesthetized adult rats were subjected to 8min VFCA or ACA. Rats were then resuscitated with epinephrine, bicarbonate, manual chest compressions and mechanical ventilation. After the return of spontaneous circulation, CBF was then serially assessed via arterial spin-labeling magnetic resonance imaging (ASL-MRI) in cortex, thalamus, hippocampus and amygdala/piriform complex over 1h resuscitation time (RT). Both ACA and VFCA produced significant temporal and regional differences in CBF. All regions in both models showed significant changes over time (p<0.01), with early hyperperfusion and delayed hypoperfusion. ACA resulted in early hyperperfusion in cortex and thalamus (both p<0.05 vs. amygdala/piriform complex). In contrast, VFCA induced early hyperperfusion only in cortex (p<0.05 vs. other regions). Hyperperfusion was prolonged after ACA, peaking at 7min RT (RT7; 199% vs. BL, Baseline, in cortex and 201% in thalamus, p<0.05), then returning close to BL at ∼RT15. In contrast, VFCA model induced mild hyperemia, peaking at RT7 (141% vs. BL in cortex). Both ACA and VFCA showed delayed hypoperfusion (ACA, ∼30% below BL in hippocampus and amygdala/piriform complex, p<0.05; VFCA, 34-41% below BL in hippocampus and amygdala/piriform complex, p<0.05). In conclusion, both ACA and VFCA in adult rats produced significant regional and temporal differences in CBF. In ACA, hyperperfusion was most pronounced in cortex and thalamus. In VFCA, the changes were more modest, with hyperperfusion seen only in cortex. Both insults resulted in delayed hypoperfusion in all regions. Both early hyperperfusion and delayed hypoperfusion may be important therapeutic targets. This study was approved by the University of Pittsburgh IACUC 1008816-1.

Indexed as

AnimalsAsphyxiaCerebrovascular CirculationHeart ArrestMagnetic Resonance ImagingMaleRatsRats, Sprague-DawleyResuscitationVentricular FibrillationBrainCardiac arrestCerebral blood flowMagnetic resonance imagingResuscitation

Identifiers

PMID24727136
PMCPMC4058351
OpenAlexW2004510490

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.