Evidence map›Paper›PMID 27636529›Full record

ArticlePrehospital emergency care

Do EMS Providers Accurately Ascertain Anticoagulant and Antiplatelet Use in Older Adults with Head Trauma?

Daniel K Nishijima, Samuel Gaona, Trent Waechter, Ric Maloney, Troy Bair, Adam Blitz, Andrew R Elms, Roel D Farrales, Calvin Howard, James Montoya and 7 more

Abstract read
In one paragraph

Article in Prehospital emergency care. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
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  3. Article
  4. Review
  5. Article
  6. Article
  7. Observational
  8. Article
  9. Observational
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

17 authors at 8 institutions in 1 country.

Daniel K Nishijima
Samuel Gaona
Trent Waechter
Ric Maloney
Troy Bair
Adam Blitz
Andrew R Elms
Roel D Farrales
Calvin Howard
James Montoya
Jeneita M Bell
Victor C Coronado
David E Sugerman
Dustin W Ballard
Kevin E Mackey
David R Vinson
James F Holmes
New York City Fire Department · USCenters for Disease Control and Prevention · USUniversity of California, Davis · USKaiser Permanente South Sacramento Medical Center · USKaiser Permanente Sacramento Medical Center · USKaiser Permanente San Rafael Medical Center · USMercy General Hospital · USSutter Medical Center · US

Funding

UC Davis Clinical and Translational Science CenterUL1TR000002 · NCATS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI BERGLUND, LARS F · 2012 to 2015
$12.2M
UC Davis Clinical and Translational Science CenterKL2TR000134 · NCATS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI BERGLUND, LARS F · 2012 to 2015
$3.1M
Field Triage of Head Injured Older Adults Taking Anticoagulants or Platelet InhibU01CE002177 · CE · UNIVERSITY OF CALIFORNIA AT DAVIS · PI NISHIJIMA, DANIEL KIDEN · 2012 to 2014
$745k
NCATS NIH HHS KL2 TR000134NCATS NIH HHS L30 TR000286NCATS NIH HHS UL1 TR000002NCIPC CDC HHS U01 CE002177
6 · The paper itself

Abstract

objectivePrehospital provider assessment of the use of anticoagulant or antiplatelet medications in older adults with head trauma is important. These patients are at increased risk for traumatic intracranial hemorrhage and therefore field triage guidelines recommend transporting these patients to centers capable of rapid evaluation and treatment. Our objective was to evaluate EMS ascertainment of anticoagulant and antiplatelet medication use in older adults with head trauma.

methodsA retrospective study of older adults with head trauma was conducted throughout Sacramento County. All 5 transporting EMS agencies and all 11 hospitals in the county were included in the study, which ran from January 2012 to December 2012. Patients ≥55 years who were transported to a hospital by EMS after head trauma were included. We excluded patients transferred between two facilities, patients with penetrating head trauma, prisoners, and patients with unmatched hospital data. Anticoagulant and antiplatelet use were categorized as: warfarin, direct oral anticoagulants (DOAC; dabigatran, rivaroxaban, and apixaban), aspirin, and other antiplatelet agents (e.g., clopidogrel and ticagrelor). We calculated the percent agreement and kappa statistic for binary variables between EMS and emergency department (ED)/hospital providers. A kappa statistic ≥0.60 was considered acceptable agreement.

resultsAfter excluding 174 (7.6%) patients, 2,110 patients were included for analysis; median age was 73 years (interquartile range 62-85 years) and 1,259 (60%) were male. Per ED/hospital providers, the use of any anticoagulant or antiplatelet agent was identified in 595 (28.2%) patients. Kappa statistics between EMS and ED/hospital providers for the specific agents were: 0.76 (95% CI 0.71-0.82) for warfarin, 0.45 (95% CI 0.19-0.71) for DOAC agents, 0.33 (95% CI 0.28-0.39) for aspirin, and 0.51 (95% CI 0.42-0.60) for other antiplatelet agents.

conclusionsThe use of antiplatelet or anticoagulant medications in older adults who are transported by EMS for head trauma is common. EMS and ED/hospital providers have acceptable agreement with preinjury warfarin use but not with DOAC, aspirin, and other antiplatelet use.

Indexed as

Craniocerebral TraumaAgedAged, 80 and overAnticoagulantsEmergency Medical ServicesFemaleHumansIntracranial Hemorrhage, TraumaticMaleMedical History TakingMiddle AgedPlatelet Aggregation InhibitorsRetrospective StudiesTriageUnited StatesAnticoagulantsPlatelet Aggregation InhibitorsanticoagulantsEmergency Medical Serviceshead injuries, closedmedication reconciliationplatelet aggregation inhibitors

Identifiers

PMID27636529
PMCPMC5336488
OpenAlexW2520499443

What OpenQuestion holds

Textmetadata
LicenceTDM
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.