Evidence map›Paper›PMID 27995510›Full record

ReviewNeurocritical care2017

Mechanisms of Global Cerebral Edema Formation in Aneurysmal Subarachnoid Hemorrhage.

Erik G Hayman, Aaron Wessell, Volodymyr Gerzanich, Kevin N Sheth, J Marc Simard

Open access · greenAbstract readReview
In one paragraph

Review in Neurocritical care, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 3 pooled it
2.9field-weighted citation impact, top 9% 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

60 citing papers in PubMed, 3 syntheses or guidelines pooled it, 85 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Haemorrhage, hypercoagulability and ischaemia: Evolution of brain injury after aneurysmal subarachnoid haemorrhage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Review
  8. Targeted proteomic analysis identifies ACVRL1 as a marker of cerebral edema in aneurysmal subarachnoid hemorrhage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Role of microglia after subarachnoid hemorrhage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Review
  18. Article
  19. Review
  20. 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

5 authors at 2 institutions in 1 country.

Erik G HaymanDepartment of Neurosurgery, University of Maryland School of Medicine, 22 S. Greene St., Suite S12D, Baltimore, MD, 21201-1595, USA.
Aaron WessellDepartment of Neurosurgery, University of Maryland School of Medicine, 22 S. Greene St., Suite S12D, Baltimore, MD, 21201-1595, USA.
Volodymyr GerzanichDepartment of Neurosurgery, University of Maryland School of Medicine, 22 S. Greene St., Suite S12D, Baltimore, MD, 21201-1595, USA.
Kevin N ShethDepartment of Neurology, Yale New Haven Hospital, New Haven, CT, USA.
J Marc SimardDepartment of Neurosurgery, University of Maryland School of Medicine, 22 S. Greene St., Suite S12D, Baltimore, MD, 21201-1595, USA. msimard@som.umaryland.edu.
University of Maryland, Baltimore · USYale New Haven Hospital · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Sulfonylurea receptor 1 (SUR1)- A novel therapeutic target in ischemic strokeR01HL082517 · NHLBI · UNIVERSITY OF MARYLAND BALTIMORE · PI SIMARD, J. MARC · 2006 to 2021
$5.6M
Spinal cord injury, progressive hemorrhagic necrosis and the NC(Ca-ATP) channelR01NS060801 · NINDS · UNIVERSITY OF MARYLAND BALTIMORE · PI SIMARD, J. MARC · 2009 to 2018
$3.3M
Pathological role of the SUR1-regulated NC(Ca-ATP) channel in cortex after subaraR01NS061808 · NINDS · UNIVERSITY OF MARYLAND BALTIMORE · PI SIMARD, J. MARC · 2009 to 2013
$1.6M
NCATS NIH HHS UL1 TR001863NHLBI NIH HHS R01 HL082517NINDS NIH HHS R01 NS060801NINDS NIH HHS R01 NS061808
6 · The paper itself

Abstract

A growing body of clinical literature emphasizes the impact of cerebral edema in early brain injury following aneurysmal subarachnoid hemorrhage (aSAH). Aneurysm rupture itself initiates global cerebral edema in up to two thirds of cases. Although cerebral edema is not a universal feature of aSAH, it portends a poor clinical course, with quantitative analysis revealing a direct correlation between cerebral edema and poor outcome, including mortality and cognitive deficits. Mechanistically, global cerebral edema has been linked to global ischemia at the time of aneurysm rupture, dysfunction of autoregulation, blood breakdown products, neuroinflammation, and hyponatremia/endocrine abnormalities. At a molecular level, several culprits have been identified, including aquaporin-4, matrix metalloproteinase-9, SUR1-TRPM4 cation channels, vascular endothelial growth factor, bradykinin, and others. Here, we review these cellular and molecular mechanisms of global cerebral edema formation in aSAH. Given the importance of edema to the outcome of patients with aSAH and its status as a highly modifiable pathological process, a better understanding of cerebral edema in aSAH promises to hasten the development of medical therapies to improve outcomes in this frequently devastating disease.

Indexed as

AnimalsBrain EdemaHumansSubarachnoid HemorrhageEdemaKeywordsSubarachnoid hemorrhage

Identifiers

PMID27995510
PMCPMC5336395
OpenAlexW2562104683

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.