Cardiac Arrest, Out-Of-Hospital Clinical Trial
Official title:
A Mixed-methods Evaluation of Integrating Drone-delivered Automated External Defibrillators Into the Ambulance Service Response to Out-of-hospital Cardiac Arrest
The goal of this observational study is to explore the optimisation and integration of a drone-delivered Automated External Defibrillator (AED) system into the pre-hospital response to out-of-hospital cardiac arrest. The study is being conducted by the University of Warwick and Welsh Ambulance Service National Health Service Trust (both in the UK) There are two separate packages of work. In work package 1 the investigators will interview people who have been involved in emergency (999) calls for cardiac arrest, asking them about their experiences with the call-handler and how they feel they might have responded if they had received an AED that had been delivered by a flying drone. In work package 2 the investigators will conduct simulated cardiac arrests. The participants in the study will make an emergency (999) call to a trained call-handler and, once the cardiac arrest is identified during the call, a drone will be activated from a distant location and fly up to 2km to the test site and deliver an AED. The investigators will record how long it takes to retrieve and attach the AED, and ask the participants for their views about the interaction with the call-handler, AED and drone.
Status | Recruiting |
Enrollment | 44 |
Est. completion date | October 31, 2024 |
Est. primary completion date | August 22, 2024 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria (interviews): - have mental capacity to make decisions about study participation. - have provided bystander interventions (CPR +/- use of an AED) during an out-of-hospital cardiac arrest - are able to conduct interviews in English. - are willing to have an audio recording made of the interview. Exclusion Criteria (interviews): - Those who have not previously provided any bystander intervention during an out-of-hospital cardiac arrest - (in the judgement of the interviewer, are not able to understand or communicate effectively in English.) - Those who do not agree to be audio recorded Inclusion Criteria (simulation): - aged 18 years of age or older - have mental capacity to make decisions about study participation. - believe themselves to have the physical and mental capability to perform CPR and use an AED in an outdoor environment. - believe themselves able to use a mobile phone to communicate with a 999 call-handler. Exclusion Criteria (simulation): - those who are or who believe themselves to be pregnant - those that are unable to complete the simulation because of physical or psychological distress. |
Country | Name | City | State |
---|---|---|---|
United Kingdom | University of Warwick | Coventry |
Lead Sponsor | Collaborator |
---|---|
University of Warwick | Welsh Ambulance Service NHS Trust |
United Kingdom,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Time away from patient's side (SIMULATION) | Time from leaving patient to retrieve drone-delivered AED to returning to patient's side with AED | During simulation procedure (cardiac arrest scenario) | |
Primary | Barriers and facilitators to drone-delivered AED use (INTERVIEW) | Findings from interview, after analysis using theoretically-informed frameworks | Following analysis and synthesis of all interviews (24 planned), April 2024 to October 2024 | |
Secondary | Interventions to overcome barriers to drone delivered AED use (INTERVIEW) | List of interventions, informed by behavioural change models and techniques, to overcome barriers identified in interviews | Following analysis and synthesis of all interviews (24 planned); April 2024 to October 2024 | |
Secondary | Hands off CPR time (SIMULATION) | Time from stopping CPR to starting CPR again after the AED has been attached and delivered a shock | During simulation procedure (cardiac arrest scenario) | |
Secondary | Total time from start of 999 call to AED application and first shock (SIMULATION) | Total time from start of 999 call to AED application (and first shock), in mins:secs | During simulation procedure (cardiac arrest scenario) | |
Secondary | Total drone flight time (SIMULATION) | From start of flight to delivery of AED to scene | During simulation procedure (cardiac arrest scenario) | |
Secondary | Time from drone arrival to safe to approach (SIMULATION) | Time from drone arrival at scene and when it is safe for participant to retrieve AED. (AED will be lowered by winch to the ground. The call-handler will have real-time communications with the drone operator and will be informed when it is safe to approach - they will then inform the participant) | During simulation procedure (cardiac arrest scenario) |
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