NCT03699137

Brief Summary

The Pre-Hospital 12-lead electrocardiogram (PHECG) is a simple test that helps ambulance clinicians assess patients with suspected acute coronary syndrome (heart attack), and provides clinical data to inform ongoing care. This project builds on previous work by this team, which found that one in three eligible patients did not receive a PHECG, but those that did had a lowered risk of short-term death. In this study the investigators will update that work, and explore reasons for variations in practice - highlighting opportunities to improve care and outcomes. Using routinely collected data and qualitative methods, the investigators will research patient, practitioner and contextual factors contributing to the decision to administer a PHECG. The aim is also to develop an intervention to increase the proportion of eligible patients that receive a PHECG, and to produce a proposal for further funding to test this intervention in a subsequent randomised trial.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
420,048

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started May 2019

Shorter than P25 for all trials

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 18, 2018

Completed
21 days until next milestone

First Posted

Study publicly available on registry

October 9, 2018

Completed
7 months until next milestone

Study Start

First participant enrolled

May 6, 2019

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2019

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2020

Completed
Last Updated

April 6, 2020

Status Verified

April 1, 2020

Enrollment Period

8 months

First QC Date

September 18, 2018

Last Update Submit

April 2, 2020

Conditions

Keywords

Acute coronary syndromeEmergency Medical ServicesElectrocardiogramOutcomes

Outcome Measures

Primary Outcomes (1)

  • WP1: 30-day mortality

    Proportion of patients who die within 30 days of the date of their event

    30 days

Secondary Outcomes (6)

  • Time to death

    Up to one year

  • Hospital mortality

    Up to 90 days

  • One year mortality

    One year

  • Time under care of EMS

    Up to 3 hours

  • Use and type of reperfusion

    24 hours

  • +1 more secondary outcomes

Study Arms (2)

Cases with confirmed ACS

Cases with confirmed diagnosis of acute coronary syndrome in the MINAP database (national registry of ACS patients). No interventions apply to this group as this is an observational study.

Other: No interventions

EMS personnel

Emergency Medical Service (EMS) personnel will take part in the focus group. No intervention applies to this group in this qualitative component of the study.

Other: No interventions

Interventions

No interventions

Cases with confirmed ACSEMS personnel

Eligibility Criteria

Age18 Years - 110 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Two types of study populations: 1. \- Patients with confirmed diagnosis of ACS in MINAP database as per inclusion and exclusion criteria 2. \- Emergency Medical Service personnel who have been trained to perform 12 lead ECG.

You may qualify if:

  • Patients \> 18 years of age
  • Patients with ACS
  • Patients who have been brought to hospital by Emergency Medical Service (EMS)
  • Patients included in the MINAP registry
  • First episode of ACS
  • Patients with confirmed STEMI and NSTEMI
  • EMS personnel trained in performing an ECG in the pre-hospital setting
  • EMS personnel involved in care of patients with a suspected heart attack

You may not qualify if:

  • patients \< 18 years of age
  • patients who self-presented at hospitals with suspected ACS
  • patients who developed ACS whilst in hospital

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

South Western Ambulance Service NHS Foundation Trust

Exeter, Devon, EX2 7HY, United Kingdom

Location

Welsh Ambulance Services NHS Trust

Cardiff, Wales, CF11 8PL, United Kingdom

Location

West Midlands Ambulance Service

Brierley Hill, West Midlands, DY5 1LX, United Kingdom

Location

Related Publications (31)

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    PMID: 26472997BACKGROUND
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    PMID: 26477416BACKGROUND
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    PMID: 21627394BACKGROUND
  • Quinn T, Johnsen S, Gale CP, Snooks H, McLean S, Woollard M, Weston C; Myocardial Ischaemia National Audit Project (MINAP) Steering Group. Effects of prehospital 12-lead ECG on processes of care and mortality in acute coronary syndrome: a linked cohort study from the Myocardial Ischaemia National Audit Project. Heart. 2014 Jun;100(12):944-50. doi: 10.1136/heartjnl-2013-304599. Epub 2014 Apr 14.

    PMID: 24732676BACKGROUND
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    PMID: 16630989BACKGROUND
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    PMID: 19130984BACKGROUND
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    PMID: 27707525BACKGROUND
  • Surveillance report 2016 - Unstable angina and NSTEMI (2010) NICE guideline CG94 and Myocardial infarction with ST-segment elevation (2013) NICE guideline CG167 [Internet]. London: National Institute for Health and Care Excellence (UK); 2016 Sep 29. No abstract available. Available from http://www.ncbi.nlm.nih.gov/books/NBK552026/

    PMID: 31886964BACKGROUND
  • Klerdal K, Varenhorst C, James S, Alfredsson L, Blomberg H, Moradi T. Sex as a determinant of prehospital ECG in ST- and non-ST elevation myocardial infarction patients. Heart. 2014 Nov;100(22):1817-8. doi: 10.1136/heartjnl-2014-306412. Epub 2014 Jul 24. No abstract available.

    PMID: 25060757BACKGROUND
  • Coventry LL, Finn J, Bremner AP. Sex differences in symptom presentation in acute myocardial infarction: a systematic review and meta-analysis. Heart Lung. 2011 Nov-Dec;40(6):477-91. doi: 10.1016/j.hrtlng.2011.05.001.

    PMID: 22000678BACKGROUND
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    PMID: 11524105BACKGROUND
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    PMID: 12414468BACKGROUND
  • Hall KH. Reviewing intuitive decision-making and uncertainty: the implications for medical education. Med Educ. 2002 Mar;36(3):216-24. doi: 10.1046/j.1365-2923.2002.01140.x.

    PMID: 11879511BACKGROUND
  • Tversky A, Kahneman D. Judgment under Uncertainty: Heuristics and Biases. Science. 1974 Sep 27;185(4157):1124-31. doi: 10.1126/science.185.4157.1124.

    PMID: 17835457BACKGROUND
  • Porter A, Snooks H, Youren A, Gaze S, Whitfield R, Rapport F, Woollard M. "Covering our backs": ambulance crews' attitudes towards clinical documentation when emergency (999) patients are not conveyed to hospital. Emerg Med J. 2008 May;25(5):292-5. doi: 10.1136/emj.2007.050443.

    PMID: 18434469BACKGROUND
  • Snooks HA, Kearsley N, Dale J, Halter M, Redhead J, Foster J. Gaps between policy, protocols and practice: a qualitative study of the views and practice of emergency ambulance staff concerning the care of patients with non-urgent needs. Qual Saf Health Care. 2005 Aug;14(4):251-7. doi: 10.1136/qshc.2004.012195.

    PMID: 16076788BACKGROUND
  • O'Hara R, Johnson M, Siriwardena AN, Weyman A, Turner J, Shaw D, Mortimer P, Newman C, Hirst E, Storey M, Mason S, Quinn T, Shewan J. A qualitative study of systemic influences on paramedic decision making: care transitions and patient safety. J Health Serv Res Policy. 2015 Jan;20(1 Suppl):45-53. doi: 10.1177/1355819614558472.

    PMID: 25472989BACKGROUND
  • 19. MRC. Developing and evaluating complex interventions: new guidance. 2006. Accessed at https://www.mrc.ac.uk/documents/pdf/complex-interventions-guidance/ June 2017.

    BACKGROUND
  • Creswell J and Plano Clark V. Designing and conducting mixed methods research. Second Edition 2006; Sage.

    BACKGROUND
  • National Institute for Cardiovascular Outcomes Research. Myocardial Ischaemia National Audit Project. Heart attack in England, Wales and Northern Ireland. Annual Public Report April 2015 - March 2016. June 2017.

    BACKGROUND
  • Kaji AH, Schriger D, Green S. Looking through the retrospectoscope: reducing bias in emergency medicine chart review studies. Ann Emerg Med. 2014 Sep;64(3):292-8. doi: 10.1016/j.annemergmed.2014.03.025. Epub 2014 Apr 18. No abstract available.

    PMID: 24746846BACKGROUND
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    PMID: 23092060BACKGROUND
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    BACKGROUND
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  • National Institute for Health and Clinical Excellence. Behaviour Change at Population, Community and Individual Levels. NICE Public Health Guidance. London: NICE, 2007

    BACKGROUND
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    PMID: 26897169BACKGROUND
  • Schiele F, Gale CP, Bonnefoy E, Capuano F, Claeys MJ, Danchin N, Fox KA, Huber K, Iakobishvili Z, Lettino M, Quinn T, Rubini Gimenez M, Botker HE, Swahn E, Timmis A, Tubaro M, Vrints C, Walker D, Zahger D, Zeymer U, Bueno H. Quality indicators for acute myocardial infarction: A position paper of the Acute Cardiovascular Care Association. Eur Heart J Acute Cardiovasc Care. 2017 Feb;6(1):34-59. doi: 10.1177/2048872616643053. Epub 2016 Sep 20.

    PMID: 27574334BACKGROUND
  • Kvale, S. InterViews: An introduction to qualitative research interviewing. Thousand Oaks, CA: Sage 1996.

    BACKGROUND
  • Ji C, Quinn T, Gavalova L, Lall R, Scomparin C, Horton J, Deakin CD, Pocock H, Smyth MA, Rees N, Brace-McDonnell SJ, Gates S, Perkins GD. Feasibility of data linkage in the PARAMEDIC trial: a cluster randomised trial of mechanical chest compression in out-of-hospital cardiac arrest. BMJ Open. 2018 Jul 28;8(7):e021519. doi: 10.1136/bmjopen-2018-021519.

    PMID: 30056384BACKGROUND
  • Gavalova L, Halter M, Snooks H, Gale CP, Weston C, Watkins A, Munro S, Davies G, Hampton C, Driscoll T, Rosser A, Rees N, Black S, Quinn T. Use and impact of the prehospital 12-lead ECG in the primary PCI era (PHECG2): protocol for a mixed-method study. Open Heart. 2019 Dec 2;6(2):e001156. doi: 10.1136/openhrt-2019-001156. eCollection 2019.

Related Links

MeSH Terms

Conditions

Acute Coronary SyndromeST Elevation Myocardial InfarctionNon-ST Elevated Myocardial Infarction

Condition Hierarchy (Ancestors)

Myocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular DiseasesMyocardial InfarctionInfarctionIschemiaPathologic ProcessesPathological Conditions, Signs and SymptomsNecrosis

Study Officials

  • Tom Quinn, FESC FAHA FACC

    Kingston University & St George's, University of London

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 18, 2018

First Posted

October 9, 2018

Study Start

May 6, 2019

Primary Completion

December 31, 2019

Study Completion

April 1, 2020

Last Updated

April 6, 2020

Record last verified: 2020-04

Data Sharing

IPD Sharing
Will not share

Locations