Evidence map›Paper›PMID 33711023›Full record

ArticlePloS one2021

Long-term outcome in patients with aneurysmal subarachnoid hemorrhage requiring mechanical ventilation.

Kevin Chalard, Vivien Szabo, Frederique Pavillard, Flora Djanikian, Cyril Dargazanli, Nicolas Molinari, Federico Manna, Vincent Costalat, Gerald Chanques, Pierre-Francois Perrigault

Abstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–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.

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

19 citing papers in PubMed.

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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

10 authors.

Kevin ChalardDepartment of Critical Care Medicine and Anesthesiology (DAR C), Gui de Chauliac University Hospital of Montpellier, Montpellier, France.ORCID 0000-0002-0727-064X
Vivien SzaboDepartment of Critical Care Medicine and Anesthesiology (DAR C), Gui de Chauliac University Hospital of Montpellier, Montpellier, France.
Frederique PavillardDepartment of Critical Care Medicine and Anesthesiology (DAR C), Gui de Chauliac University Hospital of Montpellier, Montpellier, France.
Flora DjanikianDepartment of Critical Care Medicine and Anesthesiology (DAR C), Gui de Chauliac University Hospital of Montpellier, Montpellier, France.
Cyril DargazanliDepartment of Neuroradiology, Gui de Chauliac University Hospital of Montpellier, Montpellier, France.
Nicolas MolinariIMAG, CNRS, Univ Montpellier, CHU Montpellier, Montpellier, France.
Federico MannaEpidemiology and Clinical Research Department, University Hospital of Montpellier, Montpellier, France.
Vincent CostalatDepartment of Neuroradiology, Gui de Chauliac University Hospital of Montpellier, Montpellier, France.
Gerald ChanquesDepartment of Critical Care Medicine and Anesthesiology (DAR B), Saint Eloi University Hospital of Montpellier and PhyMedExp, University of Montpellier, INSERM, CNRS, Montpellier, France.
Pierre-Francois PerrigaultDepartment of Critical Care Medicine and Anesthesiology (DAR C), Gui de Chauliac University Hospital of Montpellier, Montpellier, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients affected with aneurysmal subarachnoid hemorrhage (aSAH) often require intensive care, and then present distinctive outcome from less severe patients. We aimed to specify their long-term outcome and to identify factors associated with poor outcome.

methodsWe conducted a retrospective study in a French university hospital intensive care unit. Patients with aSAH requiring mechanical ventilation hospitalized between 2010 and 2015 were included. At least one year after initial bleeding, survival and degree of disability were assessed using the modified Rankin Scale (mRS) via telephone interviews. A multivariable logistic regression analysis was performed to determine independent factors associated with poor outcome defined as mRS≥3.

resultsTwo-hundred thirty-six patients were included. Among them, 7 were lost to follow-up, and 229 were analyzed: 73 patients (32%) had a good outcome (mRS<3), and 156 (68%) had a poor outcome (mRS≥3). The estimated 1-year survival rate was 63%. One-hundred sixty-three patients patients (71%) suffered from early brain injuries (EBI), 33 (14%) from rebleeding, 80 (35%) from vasospasm and 63 (27%) from delayed cerebral ischemia (DCI). Multivariable logistic regression identified independent factors associated with poor outcome including delay between aSAH diagnosis and mRS assessment (OR, 0.96; 95% CI, 0.95-0.98; p<.0001), age (OR per 10 points, 1.57; 95% CI, 1.12-2.19; p = 0.008), WFNS V versus WFNS III (OR, 5.71; 95% CI 1.51-21.61; p = 0.004), subarachnoid rebleeding (OR, 6.47; 95% CI 1.16-36.06; p = 0.033), EBI (OR, 4.52; 95% CI 1.81-11.29; p = 0.001) and DCI (OR, 4.73; 95% CI, 1.66-13.49; p = 0.004).

conclusionAmong aSAH patients requiring assisted ventilation, two-third of them survived at one year, and one-third showed good long-term outcome. As it appears as an independant factor associated with poor outcome, DCI shoud retain particular attention in future studies beyond angiographic vasospasm.

Indexed as

Respiration, ArtificialAdultAgedFemaleFranceHumansMaleMiddle AgedRetrospective StudiesSubarachnoid HemorrhageSurvival Rate

Identifiers

PMID33711023
PMCPMC7954305

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Registered trials

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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.