Evidence map›Paper›PMID 32860066›Full record

ArticleNeurosurgery2021

Conditioning Effect of Inhalational Anesthetics on Delayed Cerebral Ischemia After Aneurysmal Subarachnoid Hemorrhage.

Umeshkumar Athiraman, Rajat Dhar, Keshav Jayaraman, Menelaos Karanikolas, Daniel Helsten, Jane Yuan, Abhijit V Lele, Girija Prasad Rath, Rene Tempelhoff, Steven Roth and 1 more

Open access · greenAbstract read
In one paragraph

Article in Neurosurgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 22 citations in OpenAlex.

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  5. Conditioning-based therapeutics for aneurysmal subarachnoid hemorrhage - A critical review.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Review
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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

11 authors at 4 institutions in 2 countries.

Umeshkumar AthiramanDepartment of Anesthesiology , Washington University, St. Louis, Missouri.
Rajat DharDepartment of Neurology, Washington University, St. Louis, Missouri.
Keshav JayaramanDepartment of Neurological surgery, Washington University, St. Louis, Missouri.
Menelaos KaranikolasDepartment of Anesthesiology , Washington University, St. Louis, Missouri.
Daniel HelstenDepartment of Anesthesiology , Washington University, St. Louis, Missouri.
Jane YuanDepartment of Neurological surgery, Washington University, St. Louis, Missouri.
Abhijit V LeleNeurocritical Care Service, Harborview Medical Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington.
Girija Prasad RathDepartment of Neuroanaesthesiology & Critical Care, Neurosciences Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, India.
Rene TempelhoffDepartment of Anesthesiology , Washington University, St. Louis, Missouri.
Steven RothDepartment of Anesthesiology; Ophthalmology and Visual Sciences, College of Medicine, University of Illinois at Chicago, Chicago, Illinois.
Gregory J ZipfelDepartment of Neurology, Washington University, St. Louis, Missouri.
Washington University in St. Louis · USAll India Institute of Medical Sciences · INHarborview Medical Center · USUniversity of Illinois Chicago · US

Funding

TRAINING PROGRAM IN ANESTHESIOLOGY RESEARCHT32GM108539 · NIGMS · WASHINGTON UNIVERSITY · PI Aaron J Norris · 2014 to 2026
$4.9M
Translating Endogenous Vascular Protective Cascades into Therapy for Aneurysmal Subarachnoid HemorrhageR01NS091603 · NINDS · WASHINGTON UNIVERSITY · PI ZIPFEL, GREGORY J · 2015 to 2019
$2.5M
WASHINGTON UNIVERSITY NEUROSURGERY RESIDENT RESEARCH EDUCATION PROGRAMR25NS090978 · NINDS · WASHINGTON UNIVERSITY · PI ZIPFEL, GREGORY J · 2015 to 2023
$2.1M
NIGMS NIH HHS T32 GM108539NINDS NIH HHS R01 NS091603NINDS NIH HHS R25 NS090978
6 · The paper itself

Abstract

backgroundDelayed cerebral ischemia (DCI) after aneurysmal subarachnoid hemorrhage (SAH) has been identified as an independent predictor of poor outcome in numerous studies.

objectiveTo investigate the potential protective role of inhalational anesthetics against angiographic vasospasm, DCI, and neurologic outcome in SAH patients.

methodsAfter Institutional Review Board approval, data were collected retrospectively for SAH patients who received general anesthesia for aneurysm repair between January 1st, 2010 and May 31st, 2018. Primary outcomes were angiographic vasospasm, DCI, and neurologic outcome as measured by modified Rankin scale at hospital discharge. Univariate and logistic regression analysis were performed to identify independent predictors of these outcomes.

resultsThe cohort included 390 SAH patients with an average age of 56 ± 15 (mean ± SD). Multivariate logistic regression analysis identified inhalational anesthetic only technique, Hunt-Hess grade, age, anterior circulation aneurysm and average intraoperative mean blood pressure as independent predictors of angiographic vasospasm. Inhalational anesthetic only technique and modified Fishers grade were identified as independent predictors of DCI. No impact on neurological outcome at time of discharge was noted.

conclusionOur data provide additional evidence that inhalational anesthetic conditioning in SAH patients affords protection against angiographic vasospasm and new evidence that it exerts a protective effect against DCI. When coupled with similar results from preclinical studies, our data suggest further investigation into the impact of inhalational anesthetic conditioning on SAH patients, including elucidating the most effective dosing regimen, defining the therapeutic window, determining whether a similar protective effect against early brain injury, and on long-term neurological outcome exists.

Indexed as

AdultAgedAnesthetics, InhalationArterial PressureBrain IschemiaFemaleHumansMaleMiddle AgedRetrospective StudiesRisk FactorsSubarachnoid HemorrhageVasospasm, IntracranialAnesthetics, InhalationAneurysmal subarachnoid hemorrhageAngiographic vasospasmClinical outcomeDCIInhalational anesthetics

Identifiers

PMID32860066
PMCPMC7803431
OpenAlexW3081771677

What OpenQuestion holds

Textmetadata
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.