Evidence map›Paper›PMID 24743624›Full record

ArticleAnnals of surgery2015

Prehospital helicopter transport and survival of patients with traumatic brain injury.

Kimon Bekelis, Symeon Missios, Todd A Mackenzie

Abstract readComparative Study
In one paragraph

Article in Annals of surgery, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
–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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  16. Surgical outcomes for patients diagnosed with dementia: A coarsened exact matching study.Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia · 2018
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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

3 authors.

Kimon Bekelis *Section of Neurosurgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH.
Symeon Missios *Department of Neurosurgery, Cleveland Clinic, Cleveland, OH.
Todd A MackenzieDepartment of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH.

Funding

UNDERSTANDING AND IMPROVING EPISODE-BASED HOSPITAL CAREP01AG019783 · NIA · DARTMOUTH COLLEGE · PI Alistair James O'MALLEY · 2001 to 2026
$52.9M
NIA NIH HHS P01 AG019783NIA NIH HHS P01-AG19783
6 · The paper itself

Abstract

objectiveTo investigate the association of helicopter transport with survival of patients with traumatic brain injury (TBI), in comparison with ground emergency medical services (EMS).

backgroundHelicopter utilization and its effect on the outcomes of TBI remain controversial.

methodsWe performed a retrospective cohort study involving patients with TBI who were registered in the National Trauma Data Bank between 2009 and 2011. Regression techniques with propensity score matching were used to investigate the association of helicopter transport with survival of patients with TBI, in comparison with ground EMS.

resultsDuring the study period, there were 209,529 patients with TBI who were registered in the National Trauma Data Bank and met the inclusion criteria. Of these patients, 35,334 were transported via helicopters and 174,195 via ground EMS. For patients transported to level I trauma centers, 2797 deaths (12%) were recorded after helicopter transport and 8161 (7.8%) after ground EMS. Multivariable logistic regression analysis demonstrated an association of helicopter transport with increased survival [OR (odds ratio), 1.95; 95% confidence interval (CI), 1.81-2.10; absolute risk reduction (ARR), 6.37%]. This persisted after propensity score matching (OR, 1.88; 95% CI, 1.74-2.03; ARR, 5.93%). For patients transported to level II trauma centers, 1282 deaths (10.6%) were recorded after helicopter transport and 5097 (7.3%) after ground EMS. Multivariable logistic regression analysis demonstrated an association of helicopter transport with increased survival (OR, 1.81; 95% CI, 1.64-2.00; ARR 5.17%). This again persisted after propensity score matching (OR, 1.73; 95% CI, 1.55-1.94; ARR, 4.69).

conclusionsHelicopter transport of patients with TBI to level I and II trauma centers was associated with improved survival, in comparison with ground EMS.

Indexed as

Air AmbulancesAircraftTrauma CentersBrain InjuriesEmergency Medical ServicesFemaleHospital MortalityHumansInjury Severity ScoreMalePropensity ScoreRisk FactorsSurvival AnalysisUnited States

Identifiers

PMID24743624
PMCPMC4446980

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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.