Evidence map›Paper›PMID 32371401›Full record

Trial reportHeart (British Cardiac Society)2020

Limit of detection of troponin discharge strategy versus usual care: randomised controlled trial.

Edward Watts Carlton, Jenny Ingram, Hazel Taylor, Joel Glynn, Rebecca Kandiyali, Sarah Campbell, Lucy Beasant, Shahid Aziz, Peter Beresford, Jason Kendall and 5 more

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Heart (British Cardiac Society), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing 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

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

  1. Pooled it
  2. Guideline
  3. Trial
  4. Trial
  5. Review
  6. Article
  7. Observational
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. How to Approach Patients with Acute Chest Pain.Reviews in cardiovascular medicine · 2024
    Review
  14. Article
  15. Observational
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors.

Edward Watts CarltonEmergency Department, North Bristol NHS Trust, Bristol, UK eddcarlton@gmail.com.ORCID 0000-0002-2064-4618
Jenny IngramPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Hazel TaylorResearch Design Service South West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK.
Joel GlynnPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Rebecca KandiyaliPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Sarah CampbellPeninsula Clinical Trials Unit, University of Plymouth, Plymouth, UK.
Lucy BeasantPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Shahid AzizCardiology, North Bristol NHS Trust, Westbury on Trym, UK.
Peter BeresfordBiochemistry, North Bristol NHS Trust, Westbury on Trym, UK.
Jason KendallEmergency Department, North Bristol NHS Trust, Bristol, UK.
Adam ReubenEmergency Department, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK.
Jason E SmithEmergency Department, Derriford Hospital, Plymouth, UK.
Rebecca ChapmanPeninsula Clinical Trials Unit, University of Plymouth, Plymouth, UK.
Siobhan CreanorCentre for Medical Statistics, Plymouth University, Plymouth, UK.
Jonathan Richard BengerAcademic Department of Emergency care, The University Hospitals NHS Foundation trust, Bristol, UK.

Funding

Department of Health PB-PG-0416-20012
6 · The paper itself

Abstract

introductionThe clinical effectiveness of a 'rule-out' acute coronary syndrome (ACS) strategy for emergency department patients with chest pain, incorporating a single undetectable high-sensitivity cardiac troponin (hs-cTn) taken at presentation, together with a non-ischaemic ECG, remains unknown.

methodsA randomised controlled trial, across eight hospitals in the UK, aimed to establish the clinical effectiveness of an undetectable hs-cTn and ECG (limit of detection and ECG discharge (LoDED)) discharge strategy. Eligible adult patients presented with chest pain; the treating clinician intended to perform investigations to rule out an ACS; the initial ECG was non-ischaemic; and peak symptoms occurred <6 hours previously. Participants were randomised 1:1 to either the LoDED strategy or the usual rule-out strategy. The primary outcome was discharge from the hospital within 4 hours of arrival, without a major adverse cardiac event (MACE) within 30 days.

resultsBetween June 2018 and March 2019, 632 patients were randomised; 3 were later withdrawn. Of 629 patients (age 53.8 (SD 16.1) years, 41% women), 7% had a MACE within 30 days. For the LoDED strategy, 141 of 309 (46%) patients were discharged within 4 hours, without MACE within 30 days, and for usual care, 114 of 311 (37%); pooled adjusted OR 1.58 (95% CI 0.84 to 2.98). No patient with an initial undetectable hs-cTn had a MACE within 30 days.

conclusionThe LoDED strategy facilitates safe early discharge in >40% of patients with chest pain. Clinical effectiveness is variable when compared with existing rule-out strategies and influenced by wider system factors. TRIAL REGISTRATION NUMBER: ISRCTN86184521.

Indexed as

Clinical Decision RulesElectrocardiographyPatient DischargeAcute Coronary SyndromeAdultAgedAngina PectorisBiomarkersCardiology Service, HospitalEmergency Service, HospitalFemaleHumansLength of StayMaleMiddle AgedPredictive Value of TestsBiomarkersTroponinacute coronary syndromesacute myocardial infarctionhealth care deliveryhealth care economicsquality and outcomes of care

Identifiers

PMID32371401
PMCPMC7525793

What OpenQuestion holds

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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.