Evidence map›Paper›PMID 41331710›Full record

ReviewJournal of anesthesia, analgesia and critical care2025

Beta-blockers in adults with acute traumatic brain injury: a systematic review and meta-analysis of randomized controlled trials.

Marwan Bouras, Nicolas Beaulieu, Tomas Hayg Torkomyan, Sarah O'Connor, Olivier Costerousse, François Lauzier, Ryan Zarychanski, Michael Verret, Shane W English, Bourke Tillmann and 4 more

Abstract readReview
In one paragraph

Review in Journal of anesthesia, analgesia and critical care, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. 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

14 authors.

Marwan Bouras *CHU de Québec-Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Québec City, QC, Canada.
Nicolas Beaulieu *CHU de Québec-Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Québec City, QC, Canada.
Tomas Hayg TorkomyanCHU de Québec-Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Québec City, QC, Canada.
Sarah O'ConnorCHU de Québec-Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Québec City, QC, Canada.
Olivier CosterousseCHU de Québec-Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Québec City, QC, Canada.
François LauzierCHU de Québec-Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Québec City, QC, Canada.
Ryan ZarychanskiDepartment of Internal Medicine, Sections of Critical Care Medicine, of Hematology and of Medical Oncology, Rady Faculty of Medicine, University of Manitoba, Winnipeg, MB, Canada.
Michael VerretCHU de Québec-Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Québec City, QC, Canada.
Shane W EnglishOttawa Hospital Research Institute, Ottawa, ON, Canada.
Bourke TillmannInterdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada.
Ian BallDepartment of Medicine, Division of Critical Care, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.
Marat SlessarevDepartment of Medicine, Division of Critical Care, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada.
Alexis F TurgeonCHU de Québec-Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Québec City, QC, Canada. alexis.turgeon@crchudequebec.ulaval.ca.
Canadian Traumatic Brain Injury Research Consortium

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTraumatic brain injury (TBI) remains a leading cause of death and disability worldwide. Beyond the primary insult, excessive sympathetic activation contributes to secondary brain injury and poor outcomes. Beta-blockers may attenuate this hyperadrenergic surge and provide neuroprotective benefits, but their efficacy in improving long-term functional recovery remains uncertain.

methodsWe conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) evaluating beta-blockers in adults with acute TBI. We searched MEDLINE, Embase, Cochrane CENTRAL, Web of Science, and ClinicalTrials.gov for RCTs comparing beta-blockers with placebo, usual care, or non-adrenergic comparators. Our primary outcome was long-term functional outcome, assessed with the Glasgow Outcome Scale (GOS) or its Extended version (GOS-E). Secondary outcomes included mortality, intensive care unit (ICU) and hospital length of stay, duration of mechanical ventilation, and adverse events.

resultsSeven RCTs (n = 559) met inclusion; six (n = 445) contributed data to meta-analyses. Only two trials (n = 259) reported functional outcomes. Beta-blockers did not significantly reduce the risk of unfavorable neurological outcome (RR 0.81; 95% CI 0.57-1.15; very low certainty). In contrast, beta-blocker therapy was associated with a reduction in mortality (RR 0.57; 95% CI 0.39-0.82; 6 trials, n = 440; low certainty) and a shorter duration of mechanical ventilation (-1.58 days; 95% CI -2.91 to -0.26; 2 trials, n = 85; low certainty). No effect was observed on ICU or hospital stay. Adverse event reporting was sparse, but no consistent safety concerns were identified.

conclusionsIn adults with acute TBI, beta-blockers did not decrease unfavorable long-term neurological outcomes but were associated with lower mortality and shorter duration of mechanical ventilation. Given the small number of trials and very low certainty of evidence, definitive conclusions cannot be drawn, and routine use cannot be recommended. A large, well-designed RCT is needed to establish the efficacy and safety of beta-blockers in this population. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42024565361.

Indexed as

Beta-blockersGlasgow Outcome ScaleMechanical ventilationMeta-analysisMortalityRandomized controlled trialsSympathetic hyperactivityTraumatic brain injury

Identifiers

PMID41331710
PMCPMC12781557

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.