Evidence map›Paper›PMID 26810562›Full record

ArticleActa anaesthesiologica Scandinavica2016

Helicopter-based emergency medical services for a sparsely populated region: A study of 42,500 dispatches.

Ø Østerås, G Brattebø, J-K Heltne

Abstract read
In one paragraph

Article in Acta anaesthesiologica Scandinavica, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing 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

33 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. The impact of concurrency conflicts on optimal location of air ambulance bases in Norway.Scandinavian journal of trauma, resuscitation and emergency medicine · 2025
    Article
  5. Article
  6. Mortality rates in Norwegian HEMS-a retrospective analysis from Central Norway.Scandinavian journal of trauma, resuscitation and emergency medicine · 2024
    Article
  7. Article
  8. Locating helicopter ambulance bases in Iceland: efficient and fair solutions.Scandinavian journal of trauma, resuscitation and emergency medicine · 2023
    Article
  9. Observational
  10. Helicopter Ambulance Transport to the Emergency Department: Demographic and Clinical Factors Impacting Outcomes in a Turkish Medical Center.Medical science monitor : international medical journal of experimental and clinical research · 2023
    Article
  11. Observational
  12. Article
  13. Article
  14. Observational
  15. Article
  16. Article
  17. Article
  18. Introducing fairness in Norwegian air ambulance base location planning.Scandinavian journal of trauma, resuscitation and emergency medicine · 2021
    Article
  19. Observational
  20. Article
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.

Ø ØsteråsDepartment of Anaesthesia and Intensive Care, Haukeland University Hospital, Bergen, Norway.
G BrattebøDepartment of Anaesthesia and Intensive Care, Haukeland University Hospital, Bergen, Norway.
J-K HeltneDepartment of Anaesthesia and Intensive Care, Haukeland University Hospital, Bergen, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Helicopter Emergency Medical Service (HEMS) in Norway is operated day and night, despite challenging geography and weather. In Western Norway, three ambulance helicopters, with a rapid response car as an alternative, cover close to 1 million inhabitants in an area of 45,000 km(2) . Our objective was to assess patterns of emergency medical problems and treatments in HEMS in a geographically large, but sparsely populated region.

methodsData from all HEMS dispatches during 2004-2013 were assessed retrospectively. Information was analyzed with respect to patient treatment and characteristics, in addition to variations in services use during the day, week, and seasons.

resultsA total of 42,456 dispatches were analyzed. One third of the patients encountered were severely ill or injured, and two thirds of these received advanced treatment. Median activation time and on-scene time in primary helicopter missions were 5 and 11 min, respectively. Most patients (95%) were reached within 45 min by helicopter or rapid response car. Patterns of use did not change. More than one third of all dispatches were declined or aborted, mostly due to no longer medical indication, bad weather conditions, or competing missions.

conclusionOne third of the patients encountered were severely ill or injured, and more than two thirds of these received advanced treatment. HEMS use did not change over the 10-year period, however HEMS use peaked during daytime, weekends, and the summer. More than one third of all dispatches were declined or aborted.

Indexed as

AdolescentAdultAgedAged, 80 and overAge FactorsAir AmbulancesChildChild, PreschoolEmergency Medical ServicesFemaleHumansInfantInfant, NewbornMaleMiddle AgedNorway

Identifiers

PMID26810562
PMCPMC5064740

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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.