Evidence map›Paper›PMID 37268976›Full record

Observational studyScandinavian journal of trauma, resuscitation and emergency medicine2023

Predictors of post-intubation hypotension in trauma patients following prehospital emergency anaesthesia: a multi-centre observational study.

James Price, Lyle Moncur, Kate Lachowycz, Rob Major, Liam Sagi, Sarah McLachlan, Chris Keeliher, Alistair Steel, Peter B Sherren, Ed B G Barnard

Open access · goldAbstract readObservational StudyMulticenter Study
In one paragraph

Observational study in Scandinavian journal of trauma, resuscitation and emergency medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Observational
  5. Review
  6. Observational
  7. The process of rapid sequence intubation in the prehospital setting: A scoping review.The Southern African journal of critical care : the official journal of the Critical Care Society · 2025
    Review
  8. Article
  9. Observational
  10. Article
  11. Observational
  12. 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

10 authors at 4 institutions in 1 country.

James PriceDepartment of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK. James.price@doctors.org.uk.ORCID http://orcid.org/0000-0002-9643-692X
Lyle MoncurEssex and Herts Air Ambulance, Earls Colne, UK.
Kate LachowyczDepartment of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK.
Rob MajorDepartment of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK.
Liam SagiDepartment of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK.
Sarah McLachlanEssex and Herts Air Ambulance, Earls Colne, UK.
Chris KeeliherEssex and Herts Air Ambulance, Earls Colne, UK.
Alistair SteelMagpas Air Ambulance, Huntingdon, UK.
Peter B SherrenEssex and Herts Air Ambulance, Earls Colne, UK.
Ed B G BarnardDepartment of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK.
Herts and Essex Hospital · GBGuy's and St Thomas' NHS Foundation Trust · GBRoyal Navy · GBUniversity of East Anglia · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPost-intubation hypotension (PIH) after prehospital emergency anaesthesia (PHEA) is prevalent and associated with increased mortality in trauma patients. The objective of this study was to compare the differential determinants of PIH in adult trauma patients undergoing PHEA.

methodsThis multi-centre retrospective observational study was performed across three Helicopter Emergency Medical Services (HEMS) in the UK. Consecutive sampling of trauma patients who underwent PHEA using a fentanyl, ketamine, rocuronium drug regime were included, 2015-2020. Hypotension was defined as a new systolic blood pressure (SBP) < 90 mmHg within 10 min of induction, or > 10% reduction if SBP was < 90 mmHg before induction. A purposeful selection logistic regression model was used to determine pre-PHEA variables associated with PIH.

resultsDuring the study period 21,848 patients were attended, and 1,583 trauma patients underwent PHEA. The final analysis included 998 patients. 218 (21.8%) patients had one or more episode(s) of hypotension ≤ 10 min of induction. Patients > 55 years old; pre-PHEA tachycardia; multi-system injuries; and intravenous crystalloid administration before arrival of the HEMS team were the variables significantly associated with PIH. Induction drug regimes in which fentanyl was omitted (0:1:1 and 0:0:1 (rocuronium-only)) were the determinants with the largest effect sizes associated with hypotension.

conclusionThe variables significantly associated with PIH only account for a small proportion of the observed outcome. Clinician gestalt and provider intuition is likely to be the strongest predictor of PIH, suggested by the choice of a reduced dose induction and/or the omission of fentanyl during the anaesthetic for patients perceived to be at highest risk.

Indexed as

AnesthesiaEmergency Medical ServicesHypotensionAdultFentanylHumansIntubation, IntratrachealMiddle AgedPolyhydroxyethyl MethacrylateRetrospective StudiesRocuroniumFentanylpoly(2-hydroxyethyl acrylate)Polyhydroxyethyl MethacrylateRocuroniumHypotensionPost-intubation hypotensionPrehospitalPrehospital emergency anaesthesiaRapid sequence induction

Identifiers

PMID37268976
PMCPMC10236576
OpenAlexW4379144908

What OpenQuestion holds

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LicenceCC BY
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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.