Wellbeing and Stress Among Mobile Phone Dispatched Lay Responders
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|ClinicalTrials.gov Identifier: NCT04165668|
Recruitment Status : Terminated (Due to the COVID-19 Pandemic.)
First Posted : November 18, 2019
Last Update Posted : October 19, 2020
The aim of this study is to provide detailed information on state of mind, psychological wellbeing and stress for lay responders dispatched to suspected OHCA via a mobile phone application.
The Heartunner system is a mobile phone positioning system for dispatch of CPR-trained lay volunteers to nearby suspected out-of-hospital cardiac arrests (OHCAs). After downloading of a mobile phone application (The Heartrunner application), and given consent of participation, the lay responders are dispatched to nearby suspected OHCA. The lay responders are either dispatched directly to the scene of the suspected OHCA to perform CPR, or to fetch the nearest AED. The location of the OHCA and available AEDs are displayed on a map, facilitated by the Heartrunner application. The Heartrunner system is studied through "The SAMBA-trial" on clinical outcomes for OHCA patients (ClinicalTrials.gov Identifier: NCT02992873).
The psychological effects among the lay responders will be evaluated with an online survey adjacent to dispatch and after 4-6 weeks. The results of the survey will be compared both intra-individual, and to a control group of not dispatched lay responders within the Heartrunner system. Descriptive statistics regarding interventions, age, gender and former experience will also be presented.
|Condition or disease||Intervention/treatment|
|Stress, Psychological Post-traumatic Stress||Other: Exposure: First on scene|
|Study Type :||Observational|
|Actual Enrollment :||460 participants|
|Official Title:||Wellbeing and Stress Among Lay Responders Dispatched to Suspected Out-of-hospital Cardiac Arrests|
|Actual Study Start Date :||January 9, 2019|
|Actual Primary Completion Date :||May 7, 2020|
|Actual Study Completion Date :||May 7, 2020|
Dispatched lay responders
Nearby mobile phone located and dispatched lay responders who reached the place of the suspected OHCA before EMS and first responders (fire and police services).
Other: Exposure: First on scene
To be first on scene for resuscitation at the suspected out-of hospital cardiac arrest, before EMS and first responders (fire and police services)
Non-dispatched lay responders
Nearby mobile phone located lay responders who have neither actively, nor technically responded due to either human or technical factors.
- Change in Level of stress at 4 weeks [ Time Frame: At 90 minutes and 4 at weeks ]Swedish Core Affect Scale (SCAS);The measure of state of mind will be done on 12 affective scales of adjective pairs that range from 1-9. For example: anxious (1) to calm (9), pessimistic (1) to optimistic (9) etc. High numbers on adjectives indicating activation, as well as measures on "Anxious", "tense" and "nervous" will be regarded as (negative) stress whereas "Interested" "engaged" and "optimistic" will be regarded as (positive) stress.
- Level of post traumatic stress symptoms [ Time Frame: At 90 minutes and 4 at weeks ]PCL checklist, short form with 6 items each ranging from 1 to 5. Max is 30 points and a positive screen is a score of ≥ 14 points.
- Level of wellbeing [ Time Frame: At 4 weeks ]WHO index, 5 questions each ranging from 5-1 with a maximum of 100 points were higher values indicate good wellbeing. A score below 14 indicates poor wellbeing.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04165668
|Principal Investigator:||Mattias Ringh, MD PhD||Karolinska Institutet|