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The LoDED study – safe & rapid chest pain management

Randomised controlled trial of the LoDED (Limit of Detection of Troponin and ECG Discharge) strategy versus usual care in adult chest pain patients attending the Emergency Department

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN86184521
Enrollment
594
Registered
2018-04-23
Start date
2018-06-04
Completion date
Unknown
Last updated
2023-09-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chest pain Circulatory System Chest pain, unspecified

Interventions

After written consent has been obtained, participants will be randomised to be evaluated using either the existing rule-out strategy used in study centres (control) or the LoDED strategy (intervention

Sponsors

North Bristol NHS Trust
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Age =18 years 2. Presenting to ED with chest pain and triggering the chest pain investigation pathway i.e. treating clinician intends to perform investigation to rule out a cardiac cause 3. Peak symptoms occurred <6 hours prior to presentation to the ED

Exclusion criteria

Exclusion criteria: 1. ST-elevation myocardial infarction or ischaemic ECG (new T wave inversion > 3mm or ST depression > 1mm) as judged by the treating clinician 2. Clear non-ACS cause for chest pain found at presentation (e.g. pulmonary embolism, pneumonia, aortic dissection) 3. Initial hs-troponin result known to the treating clinician 4. Hospital admission indicated due to other medical/social reasons 5. Chest pain due to arrhythmia (new-onset atrial fibrillation, atrial flutter, sustained supraventricular tachycardia, second-degree or complete heart block, or sustained or recurrent ventricular arrhythmias) 6. Unable to provide written informed consent (lacks capacity) 7. Unwilling to provide written informed consent 8. Pain too severe to provide written informed consent 9. Follow-up will be impossible i.e. lives abroad or no fixed abode 10. Previous inclusion in the study 11. Prisoners 12. Pregnancy 13. Pre-existing renal failure requiring dialysis

Design outcomes

Primary

MeasureTime frame
Successful early discharge, defined as discharge from hospital within four hours of arrival, without a Major Adverse Cardiac Event (MACE) occurring within 30 days of ED attendance

Secondary

MeasureTime frame
1. Length of ED/ED Observation Unit (EDOU) stay, measured in hours. Discharge from the ED within four hours of attendance will be measured using electronic patient tracking systems in use at all study sites, according to the time the patient left the ED (including ED observation units). In the event that a participant is transferred from the ED, to an observation unit or inpatient bed within four hours of attendance and subsequently discharged, length of stay (minutes/hours) will be calculated from electronic patient records and tracking systems 2. Hospital admission and subsequent length of stay - time of admission and discharge to hospital – calculated from electronic patient records and tracking systems 3. Incidence of MACE, within 30 days of the index ED attendance – will be recorded on the SAE form, by the local ED Principal Investigator or designee with reference to relevant clinical information and responses to 30 day follow-up telephone assessments 4. Comparative costs. Resource use data to be collected from all participants with an initial hs-troponin below the LoD, at 30 (+5) days by telephone/by e-mail and electronic patient records (to include GP records where available) will include: use of health services in the last 30 days, length of any subsequent hospital stays (since initial visit to ED); hospital tests carried out during any subsequent hospital admissions, and time off work in the last 30 days. Participants with an initial hs-troponin below the LoD (irrespective of group allocation) will also be asked to complete a second EQ-5D health status questionnaire during their 30-day follow-up 5. Patient satisfaction (quantitative survey) measured using a bespoke written patient satisfaction questionnaire upon discharge from the ED 6. Acceptability to patients (qualitative methodology): up to 25 participant interviews will be conducted by phone using a topic guide to explore experiences of the participant’s stay in ED, any concerns or anxieties they migh

Countries

England, United Kingdom, Wales

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 23, 2026